Radmilović, V.

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Authority KeyName Variants
e7364809-0c77-477d-85e9-20eb3a85d494
  • Radmilović, V. (8)
  • Radmilović, Velimir (1)

Author's Bibliography

Dislocation glide-controlled room-temperature plasticity in 6H-SiC single crystals

Kiani, S.; Leung, K.W.K.; Radmilović, V.; Minor, A.M.; Yang, J.-M.; Warner, D.H.; Kodambaka, S.

(Elsevier Ltd, 2014)

TY  - JOUR
AU  - Kiani, S.
AU  - Leung, K.W.K.
AU  - Radmilović, V.
AU  - Minor, A.M.
AU  - Yang, J.-M.
AU  - Warner, D.H.
AU  - Kodambaka, S.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5771
AB  - In situ transmission electron microscopy observations of uniaxial compression of sub-300 nm diameter, cylindrical, single-crystalline 6H-SiC pillars oriented along 〈0001〉 and at 45° with respect to 〈0001〉 reveal that plastic slip occurs at room-temperature on the basal {0 0 0 1} planes at stresses above 7.8 GPa. Using a combination of aberration-corrected electron microscopy, molecular dynamics simulations and density functional theory calculations, we attribute the observed phenomenon to basal slip on the shuffle set along 11̄00. By comparing the experimentally measured yield stresses with the calculated values required for dislocation nucleation, we suggest that room-temperature plastic deformation in 6H-SiC crystals is controlled by glide rather than nucleation of dislocations.
PB  - Elsevier Ltd
T2  - Acta Materialia
T1  - Dislocation glide-controlled room-temperature plasticity in 6H-SiC single crystals
EP  - 406
SP  - 400
VL  - 80
DO  - 10.1016/j.actamat.2014.07.066
ER  - 
@article{
author = "Kiani, S. and Leung, K.W.K. and Radmilović, V. and Minor, A.M. and Yang, J.-M. and Warner, D.H. and Kodambaka, S.",
year = "2014",
abstract = "In situ transmission electron microscopy observations of uniaxial compression of sub-300 nm diameter, cylindrical, single-crystalline 6H-SiC pillars oriented along 〈0001〉 and at 45° with respect to 〈0001〉 reveal that plastic slip occurs at room-temperature on the basal {0 0 0 1} planes at stresses above 7.8 GPa. Using a combination of aberration-corrected electron microscopy, molecular dynamics simulations and density functional theory calculations, we attribute the observed phenomenon to basal slip on the shuffle set along 11̄00. By comparing the experimentally measured yield stresses with the calculated values required for dislocation nucleation, we suggest that room-temperature plastic deformation in 6H-SiC crystals is controlled by glide rather than nucleation of dislocations.",
publisher = "Elsevier Ltd",
journal = "Acta Materialia",
title = "Dislocation glide-controlled room-temperature plasticity in 6H-SiC single crystals",
pages = "406-400",
volume = "80",
doi = "10.1016/j.actamat.2014.07.066"
}
Kiani, S., Leung, K.W.K., Radmilović, V., Minor, A.M., Yang, J.-M., Warner, D.H.,& Kodambaka, S.. (2014). Dislocation glide-controlled room-temperature plasticity in 6H-SiC single crystals. in Acta Materialia
Elsevier Ltd., 80, 400-406.
https://doi.org/10.1016/j.actamat.2014.07.066
Kiani S, Leung K, Radmilović V, Minor A, Yang J, Warner D, Kodambaka S. Dislocation glide-controlled room-temperature plasticity in 6H-SiC single crystals. in Acta Materialia. 2014;80:400-406.
doi:10.1016/j.actamat.2014.07.066 .
Kiani, S., Leung, K.W.K., Radmilović, V., Minor, A.M., Yang, J.-M., Warner, D.H., Kodambaka, S., "Dislocation glide-controlled room-temperature plasticity in 6H-SiC single crystals" in Acta Materialia, 80 (2014):400-406,
https://doi.org/10.1016/j.actamat.2014.07.066 . .
44
14
43

Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes

Vuković, Goran D.; Marinković, Aleksandar; Obradović, Maja; Radmilović, V.; Čolić, Miodrag; Aleksić, Radoslav; Uskoković, Petar

(Elsevier Science Bv, Amsterdam, 2009)

TY  - JOUR
AU  - Vuković, Goran D.
AU  - Marinković, Aleksandar
AU  - Obradović, Maja
AU  - Radmilović, V.
AU  - Čolić, Miodrag
AU  - Aleksić, Radoslav
AU  - Uskoković, Petar
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1512
AB  - Surface functionalization of multi-walled carbon nanotubes (MWCNTs), with amino groups via chemical modification of carboxyl groups introduced on the nanotube surface, using O-(7-azabenzotriazol-1-yl)-N, N,N',N'-tetramethyluronium hexafluorophosphate (N-HATU) and N,N-diisopropylethylamine (DIEA) is reported. The N-HATU coupling agent provides faster reaction rate and the reaction occurs at lower temperature compared to amidation and acylation-amidation chemistry. The amines, 1,6-hexanediamine (HDA), diethylenetriamine (DETA), triethylenetetramine (TETA) and 1,4-phenylenediamine (PDA) were used. The resulting materials were characterized with different techniques such as FTIR, XRD, elemental analysis, TGA, TEM, UV-vis spectroscopy and cyclic voltammetry. MWCNTs functionalized with PDA posses the best dispersibility and electron transfer properties in comparison to the others amines. Functionalized MWCNTs, at the concentrations between 1 and 50 mu g ml(-1), were not cytotoxic for the fibroblast L929 cell line. However, the concentrations of MWCNTs higher of 10 mu g ml(-1) reduced cell growth and this effect correlated positively with the degree of their uptake by L929 cells.
PB  - Elsevier Science Bv, Amsterdam
T2  - Applied Surface Science
T1  - Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes
EP  - 8075
IS  - 18
SP  - 8067
VL  - 255
DO  - 10.1016/j.apsusc.2009.05.016
ER  - 
@article{
author = "Vuković, Goran D. and Marinković, Aleksandar and Obradović, Maja and Radmilović, V. and Čolić, Miodrag and Aleksić, Radoslav and Uskoković, Petar",
year = "2009",
abstract = "Surface functionalization of multi-walled carbon nanotubes (MWCNTs), with amino groups via chemical modification of carboxyl groups introduced on the nanotube surface, using O-(7-azabenzotriazol-1-yl)-N, N,N',N'-tetramethyluronium hexafluorophosphate (N-HATU) and N,N-diisopropylethylamine (DIEA) is reported. The N-HATU coupling agent provides faster reaction rate and the reaction occurs at lower temperature compared to amidation and acylation-amidation chemistry. The amines, 1,6-hexanediamine (HDA), diethylenetriamine (DETA), triethylenetetramine (TETA) and 1,4-phenylenediamine (PDA) were used. The resulting materials were characterized with different techniques such as FTIR, XRD, elemental analysis, TGA, TEM, UV-vis spectroscopy and cyclic voltammetry. MWCNTs functionalized with PDA posses the best dispersibility and electron transfer properties in comparison to the others amines. Functionalized MWCNTs, at the concentrations between 1 and 50 mu g ml(-1), were not cytotoxic for the fibroblast L929 cell line. However, the concentrations of MWCNTs higher of 10 mu g ml(-1) reduced cell growth and this effect correlated positively with the degree of their uptake by L929 cells.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Applied Surface Science",
title = "Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes",
pages = "8075-8067",
number = "18",
volume = "255",
doi = "10.1016/j.apsusc.2009.05.016"
}
Vuković, G. D., Marinković, A., Obradović, M., Radmilović, V., Čolić, M., Aleksić, R.,& Uskoković, P.. (2009). Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes. in Applied Surface Science
Elsevier Science Bv, Amsterdam., 255(18), 8067-8075.
https://doi.org/10.1016/j.apsusc.2009.05.016
Vuković GD, Marinković A, Obradović M, Radmilović V, Čolić M, Aleksić R, Uskoković P. Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes. in Applied Surface Science. 2009;255(18):8067-8075.
doi:10.1016/j.apsusc.2009.05.016 .
Vuković, Goran D., Marinković, Aleksandar, Obradović, Maja, Radmilović, V., Čolić, Miodrag, Aleksić, Radoslav, Uskoković, Petar, "Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes" in Applied Surface Science, 255, no. 18 (2009):8067-8075,
https://doi.org/10.1016/j.apsusc.2009.05.016 . .
151
137
164

The effect of particle structure on apparent density of electrolytic copper powder

Pavlović, Miomir; Pavlović, Lj.J.; Ivanović, Evica; Radmilović, V.; Popov, Konstantin I.

(Serbian Chemical Society, 2001)

TY  - JOUR
AU  - Pavlović, Miomir
AU  - Pavlović, Lj.J.
AU  - Ivanović, Evica
AU  - Radmilović, V.
AU  - Popov, Konstantin I.
PY  - 2001
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5354
AB  - The quantitative microstructural analysis and the sieve analysis of copper powder as well as the scanning electron microscopy analysis of the copper powders particles were performed. It was found that the structure of the copper powder particles determines the apparent density of copper powder. The powder particles from the same fractions of different powders occupy approximately the same volume, but the structure of metallic copper is very different. This causes the difference in apparent densities of copper powder obtained under different conditions. The more dendritic is the structure of powder particles the smaller is the apparent density of copper powder.
AB  - Izvršena je kvalitativna mikrostrukturna i granulometrijska analiza bakarnih prahova kao i analiza morfologije i strukture čestica praha pomoću skenirajuće elektronske mikroskopije (SEM). Ustanovljeno je da struktura čestica praha određuje nasipnu masu bakarnog praha. Čestice iste frakcije različitih prahova zauzimaju otprilike istu zapreminu, ali je struktura metalnog bakra različita. Ovo uzrokuje razlike u nasipnoj masi bakarnog praha dobijenog pod različitim uslovima. Što je struktura čestica više dendritična to je manja nasipna masa bakarnog praha.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - The effect of particle structure on apparent density of electrolytic copper powder
T1  - Uticaj strukture čestica na nasipnu masu elektrolitički dobijenog bakarnog praha
EP  - 933
IS  - 11-12
SP  - 923
VL  - 66
DO  - 10.2298/jsc0112923p
UR  - https://hdl.handle.net/21.15107/rcub_cer_28
ER  - 
@article{
author = "Pavlović, Miomir and Pavlović, Lj.J. and Ivanović, Evica and Radmilović, V. and Popov, Konstantin I.",
year = "2001",
abstract = "The quantitative microstructural analysis and the sieve analysis of copper powder as well as the scanning electron microscopy analysis of the copper powders particles were performed. It was found that the structure of the copper powder particles determines the apparent density of copper powder. The powder particles from the same fractions of different powders occupy approximately the same volume, but the structure of metallic copper is very different. This causes the difference in apparent densities of copper powder obtained under different conditions. The more dendritic is the structure of powder particles the smaller is the apparent density of copper powder., Izvršena je kvalitativna mikrostrukturna i granulometrijska analiza bakarnih prahova kao i analiza morfologije i strukture čestica praha pomoću skenirajuće elektronske mikroskopije (SEM). Ustanovljeno je da struktura čestica praha određuje nasipnu masu bakarnog praha. Čestice iste frakcije različitih prahova zauzimaju otprilike istu zapreminu, ali je struktura metalnog bakra različita. Ovo uzrokuje razlike u nasipnoj masi bakarnog praha dobijenog pod različitim uslovima. Što je struktura čestica više dendritična to je manja nasipna masa bakarnog praha.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The effect of particle structure on apparent density of electrolytic copper powder, Uticaj strukture čestica na nasipnu masu elektrolitički dobijenog bakarnog praha",
pages = "933-923",
number = "11-12",
volume = "66",
doi = "10.2298/jsc0112923p",
url = "https://hdl.handle.net/21.15107/rcub_cer_28"
}
Pavlović, M., Pavlović, Lj.J., Ivanović, E., Radmilović, V.,& Popov, K. I.. (2001). The effect of particle structure on apparent density of electrolytic copper powder. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 66(11-12), 923-933.
https://doi.org/10.2298/jsc0112923p
https://hdl.handle.net/21.15107/rcub_cer_28
Pavlović M, Pavlović L, Ivanović E, Radmilović V, Popov KI. The effect of particle structure on apparent density of electrolytic copper powder. in Journal of the Serbian Chemical Society. 2001;66(11-12):923-933.
doi:10.2298/jsc0112923p
https://hdl.handle.net/21.15107/rcub_cer_28 .
Pavlović, Miomir, Pavlović, Lj.J., Ivanović, Evica, Radmilović, V., Popov, Konstantin I., "The effect of particle structure on apparent density of electrolytic copper powder" in Journal of the Serbian Chemical Society, 66, no. 11-12 (2001):923-933,
https://doi.org/10.2298/jsc0112923p .,
https://hdl.handle.net/21.15107/rcub_cer_28 .
28
52

Deformation pattern and strain hardening in a highly textured 8090 Al-Li alloy sheet

Romhanji, Endre; Mitlin, D; Radmilović, V.

(Elsevier Science Sa, Lausanne, 2000)

TY  - JOUR
AU  - Romhanji, Endre
AU  - Mitlin, D
AU  - Radmilović, V.
PY  - 2000
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/301
AB  - Structure-deformation pattern analysis was made on a highly textured 8090 AI-Li alloy sheet deformed in tension. It is shown that the sharp beta-fiber type crystallographic texture induces a strong orientation variation in the mechanical properties and in the deformation structure. The soft orientation is 55 degrees in respect to the rolling direction (RD), while the hard orientation is parallel to the RD. Both results are predicted from the detected texture by the relaxed constrained Taylor deformation model (RC). Cellular dislocation substructure was observed in the samples deformed parallel to the RD. However, in the samples tested 55 degrees to the RD, coplanar dislocation arrangement was preserved even up to 30% elongation. In the hard orientation, the strain hardening ability is quickly exhausted. This is due to the effect of dynamic recovery occurring from the onset of deformation. In the soft orientation, the strain hardening is better sustained as a result of easy glide of the coplanar dislocations, on the primary slip systems, through the grain structure. The pattern of surface slip traces is compatible with the dislocation substructure arrangement observed by transmission electron microscopy (TEM).
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
T1  - Deformation pattern and strain hardening in a highly textured 8090 Al-Li alloy sheet
EP  - 167
IS  - 1-2
SP  - 160
VL  - 291
DO  - 10.1016/S0921-5093(00)00966-7
ER  - 
@article{
author = "Romhanji, Endre and Mitlin, D and Radmilović, V.",
year = "2000",
abstract = "Structure-deformation pattern analysis was made on a highly textured 8090 AI-Li alloy sheet deformed in tension. It is shown that the sharp beta-fiber type crystallographic texture induces a strong orientation variation in the mechanical properties and in the deformation structure. The soft orientation is 55 degrees in respect to the rolling direction (RD), while the hard orientation is parallel to the RD. Both results are predicted from the detected texture by the relaxed constrained Taylor deformation model (RC). Cellular dislocation substructure was observed in the samples deformed parallel to the RD. However, in the samples tested 55 degrees to the RD, coplanar dislocation arrangement was preserved even up to 30% elongation. In the hard orientation, the strain hardening ability is quickly exhausted. This is due to the effect of dynamic recovery occurring from the onset of deformation. In the soft orientation, the strain hardening is better sustained as a result of easy glide of the coplanar dislocations, on the primary slip systems, through the grain structure. The pattern of surface slip traces is compatible with the dislocation substructure arrangement observed by transmission electron microscopy (TEM).",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing",
title = "Deformation pattern and strain hardening in a highly textured 8090 Al-Li alloy sheet",
pages = "167-160",
number = "1-2",
volume = "291",
doi = "10.1016/S0921-5093(00)00966-7"
}
Romhanji, E., Mitlin, D.,& Radmilović, V.. (2000). Deformation pattern and strain hardening in a highly textured 8090 Al-Li alloy sheet. in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
Elsevier Science Sa, Lausanne., 291(1-2), 160-167.
https://doi.org/10.1016/S0921-5093(00)00966-7
Romhanji E, Mitlin D, Radmilović V. Deformation pattern and strain hardening in a highly textured 8090 Al-Li alloy sheet. in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing. 2000;291(1-2):160-167.
doi:10.1016/S0921-5093(00)00966-7 .
Romhanji, Endre, Mitlin, D, Radmilović, V., "Deformation pattern and strain hardening in a highly textured 8090 Al-Li alloy sheet" in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 291, no. 1-2 (2000):160-167,
https://doi.org/10.1016/S0921-5093(00)00966-7 . .
6
7
6

Room temperature deformation behaviour of A1Mg6.5 alloy sheet

Romhanji, Endre; Popović, Miljana; Radmilović, Velimir

(Carl Hanser Verlag, Munich, 1999)

TY  - JOUR
AU  - Romhanji, Endre
AU  - Popović, Miljana
AU  - Radmilović, Velimir
PY  - 1999
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/234
AB  - Room temperature tensile test have been performed with initial strain rates of 6.7 x 10(-4) s(-1), 6.7 x 10(-3) s-(1) and 6.7 x 10(-2) s(-1), on AlMg6.5 alloy sheet, after imposing 5% to 70% cold rolling reductions, and annealing at 320 degrees C/3 h. The applied working conditions were found to affect the yield point elongation, dynamic strain aging and the related steady state strain rate sensitivity. The Portevin-LeChatelier effect has been shown to be effective from the start of plastic deformation. Accordingly, the m values determined in continuous tensile tests were negative in the entire strain range, and also vary in dependence on the gain size or strain rates used for calculating them. After low rolling reductions ( lt 20%) and subsequent annealing, a well defined subgrain structure has been revealed, which seems to improve the strain hardening ability of the tested material, and influence the overall strain rate sensitivity.
PB  - Carl Hanser Verlag, Munich
T2  - Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
T1  - Room temperature deformation behaviour of A1Mg6.5 alloy sheet
EP  - 310
IS  - 4
SP  - 305
VL  - 90
UR  - https://hdl.handle.net/21.15107/rcub_technorep_234
ER  - 
@article{
author = "Romhanji, Endre and Popović, Miljana and Radmilović, Velimir",
year = "1999",
abstract = "Room temperature tensile test have been performed with initial strain rates of 6.7 x 10(-4) s(-1), 6.7 x 10(-3) s-(1) and 6.7 x 10(-2) s(-1), on AlMg6.5 alloy sheet, after imposing 5% to 70% cold rolling reductions, and annealing at 320 degrees C/3 h. The applied working conditions were found to affect the yield point elongation, dynamic strain aging and the related steady state strain rate sensitivity. The Portevin-LeChatelier effect has been shown to be effective from the start of plastic deformation. Accordingly, the m values determined in continuous tensile tests were negative in the entire strain range, and also vary in dependence on the gain size or strain rates used for calculating them. After low rolling reductions ( lt 20%) and subsequent annealing, a well defined subgrain structure has been revealed, which seems to improve the strain hardening ability of the tested material, and influence the overall strain rate sensitivity.",
publisher = "Carl Hanser Verlag, Munich",
journal = "Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques",
title = "Room temperature deformation behaviour of A1Mg6.5 alloy sheet",
pages = "310-305",
number = "4",
volume = "90",
url = "https://hdl.handle.net/21.15107/rcub_technorep_234"
}
Romhanji, E., Popović, M.,& Radmilović, V.. (1999). Room temperature deformation behaviour of A1Mg6.5 alloy sheet. in Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
Carl Hanser Verlag, Munich., 90(4), 305-310.
https://hdl.handle.net/21.15107/rcub_technorep_234
Romhanji E, Popović M, Radmilović V. Room temperature deformation behaviour of A1Mg6.5 alloy sheet. in Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques. 1999;90(4):305-310.
https://hdl.handle.net/21.15107/rcub_technorep_234 .
Romhanji, Endre, Popović, Miljana, Radmilović, Velimir, "Room temperature deformation behaviour of A1Mg6.5 alloy sheet" in Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques, 90, no. 4 (1999):305-310,
https://hdl.handle.net/21.15107/rcub_technorep_234 .
10
9

Electron microscopy observations of twin-twin intersections in a particle hardened copper-titanium alloy

Radetić, Tamara; Radmilović, V.; Soffa, W.A.

(1999)

TY  - JOUR
AU  - Radetić, Tamara
AU  - Radmilović, V.
AU  - Soffa, W.A.
PY  - 1999
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/225
AB  - The twin-twin intersections in the precipitation hardened two-phase copper-titanium alloys were studied using conventional and high-resolution electron microscopy. The incident twin propagation through an obstacle twin was accommodated by both slip and twinning. The ledge associated with the twin-twin intersections was associated with complex sessile configurations. The existence of an accommodation mechanism without shear transfer on conventional {111} planes in the obstacle twin led to the formation of strong rotation fields and activation of secondary twinning in the obstacle twin.
T2  - Scripta Materialia
T1  - Electron microscopy observations of twin-twin intersections in a particle hardened copper-titanium alloy
EP  - 852
IS  - 7
SP  - 845
VL  - 40
DO  - 10.1016/S1359-6462(98)00501-6
ER  - 
@article{
author = "Radetić, Tamara and Radmilović, V. and Soffa, W.A.",
year = "1999",
abstract = "The twin-twin intersections in the precipitation hardened two-phase copper-titanium alloys were studied using conventional and high-resolution electron microscopy. The incident twin propagation through an obstacle twin was accommodated by both slip and twinning. The ledge associated with the twin-twin intersections was associated with complex sessile configurations. The existence of an accommodation mechanism without shear transfer on conventional {111} planes in the obstacle twin led to the formation of strong rotation fields and activation of secondary twinning in the obstacle twin.",
journal = "Scripta Materialia",
title = "Electron microscopy observations of twin-twin intersections in a particle hardened copper-titanium alloy",
pages = "852-845",
number = "7",
volume = "40",
doi = "10.1016/S1359-6462(98)00501-6"
}
Radetić, T., Radmilović, V.,& Soffa, W.A.. (1999). Electron microscopy observations of twin-twin intersections in a particle hardened copper-titanium alloy. in Scripta Materialia, 40(7), 845-852.
https://doi.org/10.1016/S1359-6462(98)00501-6
Radetić T, Radmilović V, Soffa W. Electron microscopy observations of twin-twin intersections in a particle hardened copper-titanium alloy. in Scripta Materialia. 1999;40(7):845-852.
doi:10.1016/S1359-6462(98)00501-6 .
Radetić, Tamara, Radmilović, V., Soffa, W.A., "Electron microscopy observations of twin-twin intersections in a particle hardened copper-titanium alloy" in Scripta Materialia, 40, no. 7 (1999):845-852,
https://doi.org/10.1016/S1359-6462(98)00501-6 . .
8
10

On the serrated yielding in AlMg6.5 alloy sheet

Romhanji, Endre; Popović, Miljana; Radmilović, V.

(Serbian Chemical Society, Belgrade, 1998)

TY  - JOUR
AU  - Romhanji, Endre
AU  - Popović, Miljana
AU  - Radmilović, V.
PY  - 1998
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/170
AB  - Room temperature tensile tests were performed on AlMg6.5 alloy sheet, with Initial strain rates of 6.7x10(4) s(1), 6.7x10(-3) s(-1) and 6.7x10(-2) s(-1), after imposing 70% cold rolling reductions, and annealing at 320 degrees C/3 h. The Portevin-Le Chatelier effect is the main mechanism of unstable plastic flow, caused by Mg solute-dislocation interactions. Although, a comprehensive comparison of the energies of activation, relevant for serrated yielding, revealed a wide range of values, calculations based on the used strain rates, retained vacancy concentration and the Mg solute diffusion coefficient at room temperature, indicate that serrations are expected to appear from the start of plastic deformation. In other wolds, under the performed test conditions, the Mg solute atoms are mobile enough for the majority of dislocations to travel in conjunction with the Mg atmospheres. After deformation at a strain rate of 6.7x10(-2) s(-1) the "D" type serration observed, as a series of successive not completely flat stress plateaus, indicates a complex deformation process, affected by strain hardening, coused by dislocation reactions and the propagation of a kind of non-hardening deformation bands.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - On the serrated yielding in AlMg6.5 alloy sheet
EP  - 832
IS  - 10
SP  - 823
VL  - 63
UR  - https://hdl.handle.net/21.15107/rcub_technorep_170
ER  - 
@article{
author = "Romhanji, Endre and Popović, Miljana and Radmilović, V.",
year = "1998",
abstract = "Room temperature tensile tests were performed on AlMg6.5 alloy sheet, with Initial strain rates of 6.7x10(4) s(1), 6.7x10(-3) s(-1) and 6.7x10(-2) s(-1), after imposing 70% cold rolling reductions, and annealing at 320 degrees C/3 h. The Portevin-Le Chatelier effect is the main mechanism of unstable plastic flow, caused by Mg solute-dislocation interactions. Although, a comprehensive comparison of the energies of activation, relevant for serrated yielding, revealed a wide range of values, calculations based on the used strain rates, retained vacancy concentration and the Mg solute diffusion coefficient at room temperature, indicate that serrations are expected to appear from the start of plastic deformation. In other wolds, under the performed test conditions, the Mg solute atoms are mobile enough for the majority of dislocations to travel in conjunction with the Mg atmospheres. After deformation at a strain rate of 6.7x10(-2) s(-1) the "D" type serration observed, as a series of successive not completely flat stress plateaus, indicates a complex deformation process, affected by strain hardening, coused by dislocation reactions and the propagation of a kind of non-hardening deformation bands.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "On the serrated yielding in AlMg6.5 alloy sheet",
pages = "832-823",
number = "10",
volume = "63",
url = "https://hdl.handle.net/21.15107/rcub_technorep_170"
}
Romhanji, E., Popović, M.,& Radmilović, V.. (1998). On the serrated yielding in AlMg6.5 alloy sheet. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 63(10), 823-832.
https://hdl.handle.net/21.15107/rcub_technorep_170
Romhanji E, Popović M, Radmilović V. On the serrated yielding in AlMg6.5 alloy sheet. in Journal of the Serbian Chemical Society. 1998;63(10):823-832.
https://hdl.handle.net/21.15107/rcub_technorep_170 .
Romhanji, Endre, Popović, Miljana, Radmilović, V., "On the serrated yielding in AlMg6.5 alloy sheet" in Journal of the Serbian Chemical Society, 63, no. 10 (1998):823-832,
https://hdl.handle.net/21.15107/rcub_technorep_170 .

Electrochemically deposited thin films of amorphous Fe-P alloy Part I. Chemical composition and phase structure characterization

Zečević, S.K.; Zotović, Jelena B.; Gojković, Snežana Lj.; Radmilović, V.

(Elsevier Science Sa, Lausanne, 1998)

TY  - JOUR
AU  - Zečević, S.K.
AU  - Zotović, Jelena B.
AU  - Gojković, Snežana Lj.
AU  - Radmilović, V.
PY  - 1998
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/216
AB  - Thin Fe-P alloy films (0.5 to 25.0 mu m thick) were electrodeposited from sulfate solutions. The influences of various deposition conditions (current density, time, pH and temperature) on the composition and structure of the deposited films were examined. These Fe-P films were first characterized by the ALSV. The voltammograms obtained show several current peaks, indicating the presence of several different phase structures in the deposit. Chemical composition of the phase structures in the film was determined by EDX analysis and the amorphous nature of the alloy was verified by XRD and DTA techniques. Chemical and phase structure compositions of the alloys (containing 15-50 at.% P in the form of phosphides FeP, Fe2P and/or Fe3P) were found to depend on deposition conditions. Appearance and morphology of the film alloys were also found to depend on deposition conditions, particularly current density, as illustrated by the SEM technique.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Electrochemically deposited thin films of amorphous Fe-P alloy Part I. Chemical composition and phase structure characterization
EP  - 252
IS  - 2
SP  - 245
VL  - 448
DO  - 10.1016/S0022-0728(97)00417-8
ER  - 
@article{
author = "Zečević, S.K. and Zotović, Jelena B. and Gojković, Snežana Lj. and Radmilović, V.",
year = "1998",
abstract = "Thin Fe-P alloy films (0.5 to 25.0 mu m thick) were electrodeposited from sulfate solutions. The influences of various deposition conditions (current density, time, pH and temperature) on the composition and structure of the deposited films were examined. These Fe-P films were first characterized by the ALSV. The voltammograms obtained show several current peaks, indicating the presence of several different phase structures in the deposit. Chemical composition of the phase structures in the film was determined by EDX analysis and the amorphous nature of the alloy was verified by XRD and DTA techniques. Chemical and phase structure compositions of the alloys (containing 15-50 at.% P in the form of phosphides FeP, Fe2P and/or Fe3P) were found to depend on deposition conditions. Appearance and morphology of the film alloys were also found to depend on deposition conditions, particularly current density, as illustrated by the SEM technique.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Electrochemically deposited thin films of amorphous Fe-P alloy Part I. Chemical composition and phase structure characterization",
pages = "252-245",
number = "2",
volume = "448",
doi = "10.1016/S0022-0728(97)00417-8"
}
Zečević, S.K., Zotović, J. B., Gojković, S. Lj.,& Radmilović, V.. (1998). Electrochemically deposited thin films of amorphous Fe-P alloy Part I. Chemical composition and phase structure characterization. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 448(2), 245-252.
https://doi.org/10.1016/S0022-0728(97)00417-8
Zečević S, Zotović JB, Gojković SL, Radmilović V. Electrochemically deposited thin films of amorphous Fe-P alloy Part I. Chemical composition and phase structure characterization. in Journal of Electroanalytical Chemistry. 1998;448(2):245-252.
doi:10.1016/S0022-0728(97)00417-8 .
Zečević, S.K., Zotović, Jelena B., Gojković, Snežana Lj., Radmilović, V., "Electrochemically deposited thin films of amorphous Fe-P alloy Part I. Chemical composition and phase structure characterization" in Journal of Electroanalytical Chemistry, 448, no. 2 (1998):245-252,
https://doi.org/10.1016/S0022-0728(97)00417-8 . .
34
32
37

Cathodic processes on corroding low-carbon steel: the effect of the degree of deformation

Dražić, Dragutin M.; Gojković, Snežana Lj.; Zečević, S.K.; Radmilović, V.

(Pergamon-Elsevier Science Ltd, Oxford, 1992)

TY  - JOUR
AU  - Dražić, Dragutin M.
AU  - Gojković, Snežana Lj.
AU  - Zečević, S.K.
AU  - Radmilović, V.
PY  - 1992
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/43
AB  - The influence of the degree of deformation of low-carbon steel (0.48% Mn, 0.47% Si, 0.085% C) caused by mono-axial stretching was investigated with respect to the kinetics of electrochemical hydrogen evolution and the reduction of oxygen and hydrogen peroxide on the electrode surface. In 0.5 M H2SO4 deformation of the metal decreased the cathodic hydrogen evolution reaction rate by half compared to the annealed sample. In weakly alkaline borate buffer (pH 9.8) neither the oxygen nor hydrogen peroxide reduction rates were influenced by deformation, while in chloride solutions the effect was similar to that for hydrogen evolution. This indicates that the reduction of both oxygen and peroxide take place at the passive film-solution interface which is not influenced by bulk metal deformations, while for reactions occurring at the metal-solution interface changes of structure, induced by deformation, inhibit the cathodic processes to a small degree.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Corrosion Science
T1  - Cathodic processes on corroding low-carbon steel: the effect of the degree of deformation
EP  - 797
IS  - 5
SP  - 791
VL  - 33
DO  - 10.1016/0010-938X(92)90111-F
ER  - 
@article{
author = "Dražić, Dragutin M. and Gojković, Snežana Lj. and Zečević, S.K. and Radmilović, V.",
year = "1992",
abstract = "The influence of the degree of deformation of low-carbon steel (0.48% Mn, 0.47% Si, 0.085% C) caused by mono-axial stretching was investigated with respect to the kinetics of electrochemical hydrogen evolution and the reduction of oxygen and hydrogen peroxide on the electrode surface. In 0.5 M H2SO4 deformation of the metal decreased the cathodic hydrogen evolution reaction rate by half compared to the annealed sample. In weakly alkaline borate buffer (pH 9.8) neither the oxygen nor hydrogen peroxide reduction rates were influenced by deformation, while in chloride solutions the effect was similar to that for hydrogen evolution. This indicates that the reduction of both oxygen and peroxide take place at the passive film-solution interface which is not influenced by bulk metal deformations, while for reactions occurring at the metal-solution interface changes of structure, induced by deformation, inhibit the cathodic processes to a small degree.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Corrosion Science",
title = "Cathodic processes on corroding low-carbon steel: the effect of the degree of deformation",
pages = "797-791",
number = "5",
volume = "33",
doi = "10.1016/0010-938X(92)90111-F"
}
Dražić, D. M., Gojković, S. Lj., Zečević, S.K.,& Radmilović, V.. (1992). Cathodic processes on corroding low-carbon steel: the effect of the degree of deformation. in Corrosion Science
Pergamon-Elsevier Science Ltd, Oxford., 33(5), 791-797.
https://doi.org/10.1016/0010-938X(92)90111-F
Dražić DM, Gojković SL, Zečević S, Radmilović V. Cathodic processes on corroding low-carbon steel: the effect of the degree of deformation. in Corrosion Science. 1992;33(5):791-797.
doi:10.1016/0010-938X(92)90111-F .
Dražić, Dragutin M., Gojković, Snežana Lj., Zečević, S.K., Radmilović, V., "Cathodic processes on corroding low-carbon steel: the effect of the degree of deformation" in Corrosion Science, 33, no. 5 (1992):791-797,
https://doi.org/10.1016/0010-938X(92)90111-F . .
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