TY  - CONF
AU  - Ćitić, Aleksandar
AU  - Popović, Miljana
AU  - Radetić, Tamara
AU  - Ghulam Isaq Khan, Muhamad
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7244
AB  - There is renewed interest in microstructure development at the different stages of the thermomechanical processing (TMP) of the 5xxx series aluminum alloys due to the increased
demand for sheet material with excellent mechanical properties and formability. This study
investigates how homogenization conditions affect the processes of dissolution and
precipitation of secondary phases and, further down the processing line, the recrystallization
behavior of Al-Mg alloy AA5182. ...
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
T1  - The effect of homogenization conditions on microstructure and recrystallization behavior of AA5182 alloy
SP  - 77
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7244
ER  - 

@conference{
author = "Ćitić, Aleksandar and Popović, Miljana and Radetić, Tamara and Ghulam Isaq Khan, Muhamad",
year = "2023",
abstract = "There is renewed interest in microstructure development at the different stages of the thermomechanical processing (TMP) of the 5xxx series aluminum alloys due to the increased
demand for sheet material with excellent mechanical properties and formability. This study
investigates how homogenization conditions affect the processes of dissolution and
precipitation of secondary phases and, further down the processing line, the recrystallization
behavior of Al-Mg alloy AA5182. ...",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia",
title = "The effect of homogenization conditions on microstructure and recrystallization behavior of AA5182 alloy",
pages = "77",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7244"
}

Ćitić, A., Popović, M., Radetić, T.,& Ghulam Isaq Khan, M.. (2023). The effect of homogenization conditions on microstructure and recrystallization behavior of AA5182 alloy. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 77.
https://hdl.handle.net/21.15107/rcub_technorep_7244

Ćitić A, Popović M, Radetić T, Ghulam Isaq Khan M. The effect of homogenization conditions on microstructure and recrystallization behavior of AA5182 alloy. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia. 2023;:77.
https://hdl.handle.net/21.15107/rcub_technorep_7244 .

Ćitić, Aleksandar, Popović, Miljana, Radetić, Tamara, Ghulam Isaq Khan, Muhamad, "The effect of homogenization conditions on microstructure and recrystallization behavior of AA5182 alloy" in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia (2023):77,
https://hdl.handle.net/21.15107/rcub_technorep_7244 .

TY  - CONF
AU  - Ghulam Isaq Khan, Muhamad
AU  - Rajković, Filip
AU  - Popović, Miljana
AU  - Prelević, Dejan
AU  - Ćitić, Aleksandar
AU  - Radetić, Tamara
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7249
AB  - In this work, we investigate the role of crystallographic texture on the onset of abnormal grain growth
(AGG) in AA5182 alloy. TMP included 65% cold-rolling reduction and isothermal annealing at 480°C at
various times. The microstructure characterization by optical microscopy in polarized light revealed that
AGG starts after holding for 5 min at 480°C. Further investigation of the sample with incipient abnormal
grains was conducted by an SEM equipped with an EBSD detector. The incipient abnormal grains appear
to have an orientation of minor texture components, i.e. different cube variants, most likely due to the
enhanced grain boundary mobility. However, texture fails to explain the difference in the propensity toward
AGG in the region close to the sheet surface and its center, which is likely caused by the non-uniform
distribution of the intermetallic particles.
PB  - Bor : University of Belgrade, Technical Faculty
C3  - Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia
T1  - Initiation of abnormal grain growth in cold-rolled sheet of AA5182 Al-Mg alloy: role of texture
EP  - 484
SP  - 481
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7249
ER  - 

@conference{
author = "Ghulam Isaq Khan, Muhamad and Rajković, Filip and Popović, Miljana and Prelević, Dejan and Ćitić, Aleksandar and Radetić, Tamara",
year = "2023",
abstract = "In this work, we investigate the role of crystallographic texture on the onset of abnormal grain growth
(AGG) in AA5182 alloy. TMP included 65% cold-rolling reduction and isothermal annealing at 480°C at
various times. The microstructure characterization by optical microscopy in polarized light revealed that
AGG starts after holding for 5 min at 480°C. Further investigation of the sample with incipient abnormal
grains was conducted by an SEM equipped with an EBSD detector. The incipient abnormal grains appear
to have an orientation of minor texture components, i.e. different cube variants, most likely due to the
enhanced grain boundary mobility. However, texture fails to explain the difference in the propensity toward
AGG in the region close to the sheet surface and its center, which is likely caused by the non-uniform
distribution of the intermetallic particles.",
publisher = "Bor : University of Belgrade, Technical Faculty",
journal = "Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia",
title = "Initiation of abnormal grain growth in cold-rolled sheet of AA5182 Al-Mg alloy: role of texture",
pages = "484-481",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7249"
}

Ghulam Isaq Khan, M., Rajković, F., Popović, M., Prelević, D., Ćitić, A.,& Radetić, T.. (2023). Initiation of abnormal grain growth in cold-rolled sheet of AA5182 Al-Mg alloy: role of texture. in Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia
Bor : University of Belgrade, Technical Faculty., 481-484.
https://hdl.handle.net/21.15107/rcub_technorep_7249

Ghulam Isaq Khan M, Rajković F, Popović M, Prelević D, Ćitić A, Radetić T. Initiation of abnormal grain growth in cold-rolled sheet of AA5182 Al-Mg alloy: role of texture. in Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia. 2023;:481-484.
https://hdl.handle.net/21.15107/rcub_technorep_7249 .

Ghulam Isaq Khan, Muhamad, Rajković, Filip, Popović, Miljana, Prelević, Dejan, Ćitić, Aleksandar, Radetić, Tamara, "Initiation of abnormal grain growth in cold-rolled sheet of AA5182 Al-Mg alloy: role of texture" in Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia (2023):481-484,
https://hdl.handle.net/21.15107/rcub_technorep_7249 .

TY  - CONF
AU  - Ghulam Isaq Khan, Muhamad
AU  - Rajković, Filip
AU  - Popović, Miljana
AU  - Prelević, Dejan
AU  - Ćitić, Aleksandar
AU  - Radetić, Tamara
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7250
AB  - Studies of recrystallization and grain growth phenomena have a long history, but the causes of abnormal grain growth (AGG) are not well understood. We report on the results of the study of the occurrence of AGG in Al-Mg alloy AA5182. The industrially produced hot band underwent various routes of thermo-mechanical processing: inter-annealing, cold rolling with reductions ranging from 40-85% followed by isochronal anneal (1h) in the temperature range 350-520°C or isothermal treatment at 480°C for various times. The microstructural characterization was conducted by optical microscopy in polarized light and FEG SEM, while the EBSD technique was used for microtexture analysis of the selected states. The results showed that the temperature for the onset of the AGG decreases as the degree of cold reduction increases. The abnormal grains start to appear in the regions close to the surface, i.e., within 1.5 mm from it in the inter-annealed 12 mm thick hot band or 700 μm in the case of cold rolled sheet with 64% reduction. Initially equiaxed, abnormal grains show strong growth anisotropy with much faster growth in the rolling than in the normal direction. Growth anisotropy was attributed to the rod-like shape and alignment of Al6Mn dispersoids through Zener pinning. With extended annealing, bands of abnormal grains form parallel to the surfaces. Microtexture analysis of the sample with incipient abnormal grains showed the presence of retained rolling texture components in the form of R-fibre. In contrast, the incipient abnormal grains appear to have orientations of cube variants, the texture components which are at or below random level. Since the texture is similar throughout the sheet, it is likely that the AGG starts first in the surface region due to the non-uniform deformation and distribution of the intermetallic particles.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
T1  - Study of abnormal grain growth in cold-rolled AA5182 Al-Mg alloy
SP  - 61
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7250
ER  - 

@conference{
author = "Ghulam Isaq Khan, Muhamad and Rajković, Filip and Popović, Miljana and Prelević, Dejan and Ćitić, Aleksandar and Radetić, Tamara",
year = "2023",
abstract = "Studies of recrystallization and grain growth phenomena have a long history, but the causes of abnormal grain growth (AGG) are not well understood. We report on the results of the study of the occurrence of AGG in Al-Mg alloy AA5182. The industrially produced hot band underwent various routes of thermo-mechanical processing: inter-annealing, cold rolling with reductions ranging from 40-85% followed by isochronal anneal (1h) in the temperature range 350-520°C or isothermal treatment at 480°C for various times. The microstructural characterization was conducted by optical microscopy in polarized light and FEG SEM, while the EBSD technique was used for microtexture analysis of the selected states. The results showed that the temperature for the onset of the AGG decreases as the degree of cold reduction increases. The abnormal grains start to appear in the regions close to the surface, i.e., within 1.5 mm from it in the inter-annealed 12 mm thick hot band or 700 μm in the case of cold rolled sheet with 64% reduction. Initially equiaxed, abnormal grains show strong growth anisotropy with much faster growth in the rolling than in the normal direction. Growth anisotropy was attributed to the rod-like shape and alignment of Al6Mn dispersoids through Zener pinning. With extended annealing, bands of abnormal grains form parallel to the surfaces. Microtexture analysis of the sample with incipient abnormal grains showed the presence of retained rolling texture components in the form of R-fibre. In contrast, the incipient abnormal grains appear to have orientations of cube variants, the texture components which are at or below random level. Since the texture is similar throughout the sheet, it is likely that the AGG starts first in the surface region due to the non-uniform deformation and distribution of the intermetallic particles.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia",
title = "Study of abnormal grain growth in cold-rolled AA5182 Al-Mg alloy",
pages = "61",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7250"
}

Ghulam Isaq Khan, M., Rajković, F., Popović, M., Prelević, D., Ćitić, A.,& Radetić, T.. (2023). Study of abnormal grain growth in cold-rolled AA5182 Al-Mg alloy. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 61.
https://hdl.handle.net/21.15107/rcub_technorep_7250

Ghulam Isaq Khan M, Rajković F, Popović M, Prelević D, Ćitić A, Radetić T. Study of abnormal grain growth in cold-rolled AA5182 Al-Mg alloy. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia. 2023;:61.
https://hdl.handle.net/21.15107/rcub_technorep_7250 .

Ghulam Isaq Khan, Muhamad, Rajković, Filip, Popović, Miljana, Prelević, Dejan, Ćitić, Aleksandar, Radetić, Tamara, "Study of abnormal grain growth in cold-rolled AA5182 Al-Mg alloy" in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia (2023):61,
https://hdl.handle.net/21.15107/rcub_technorep_7250 .

TY  - CONF
AU  - Ghulam Isaq Khan, Muhamad
AU  - Popović, Miljana
AU  - Radetić, Tamara
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7262
AB  - U završnoj fazi prerade Al-Mg legura, pojava abnormalnih zrna (AGG) u strukturi je
nepoželjna, jer dovodi do pogoršanja mehaničkih osobina. Medjutim, postoji veliki interes
za proučavanjem uticaja AGG, koja nastaju u toku medjužarenja, na razvoj mikrostrukture
i teksture tokom dalje prerade. Naime, odredjene teksturne komponente i tipovi granica
zrna imaju pozitivan uticaj na deformaciono i koroziono ponašanje.U ovom radu je opisan
efekat uslova medjužarenja i hemijskog sastava na mikrostrukturu Al-Mg legura. Uzorci,
izohrono žareni na temperaturama 350-550°C,ili tretirani na 520°C pri različitim
vremenima, su ispitivani optičkom mikroskopijom u polarizovanom svetlu. Utvrdjeno je
da je AGG ograničen na pojas u blizini ivice uzorka. Abnormalna zrna poseduju visok
stepen anizotropije, a inicijalno brz rast stagnira sa produžetkom žarenja. Uticaj hemijskog
sastava na pojavu AGG je ispitivan u slučaju četiri legure i rezultati su pokazali da niži
sadržaj legirajućih elemenata pospešuje AGG.
AB  - During final annealing of Al-Mg alloys, abnormal grain growth (AGG) is undesirableasit
deteriorates mechanical properties. However, there is interest to investigate how the
introduction of the AGG during intermediate annealing affects microstructure and texture
development upon further processing.It is known that certain texture components and grain
boundary types can affect formabilityand IGC susceptibility. In this study, the effect of
intermediate annealing conditions andchemical composition on the microstructure of of
Al-Mg alloysis reported. The specimens,annealed isochronally at temperatures of 350-
550°C or isothermally at 520°C for various times, were examined by optical microscopy in
polarized light. It is found that the AGG is confined to a band near the surface.There is
astrong anisotropy in grains shape and initially rapid grain growth stagnates with
furtherannealing. The influence of the chemical composition on the AGG was investigated
in four alloys and the results showed that the decrease in the alloying elementscontent
promoted AGG.
PB  - Beograd : Srpsko hemijsko društvo = Serbian Chemical Society
C3  - Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022
T1  - Abnormalni rast zrna u toku medjužarenja u Al-Mg legurama
T1  - Abnormal grain growth during intermediate annealing of Al-Mg alloys
SP  - 103
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7262
ER  - 

@conference{
author = "Ghulam Isaq Khan, Muhamad and Popović, Miljana and Radetić, Tamara",
year = "2022",
abstract = "U završnoj fazi prerade Al-Mg legura, pojava abnormalnih zrna (AGG) u strukturi je
nepoželjna, jer dovodi do pogoršanja mehaničkih osobina. Medjutim, postoji veliki interes
za proučavanjem uticaja AGG, koja nastaju u toku medjužarenja, na razvoj mikrostrukture
i teksture tokom dalje prerade. Naime, odredjene teksturne komponente i tipovi granica
zrna imaju pozitivan uticaj na deformaciono i koroziono ponašanje.U ovom radu je opisan
efekat uslova medjužarenja i hemijskog sastava na mikrostrukturu Al-Mg legura. Uzorci,
izohrono žareni na temperaturama 350-550°C,ili tretirani na 520°C pri različitim
vremenima, su ispitivani optičkom mikroskopijom u polarizovanom svetlu. Utvrdjeno je
da je AGG ograničen na pojas u blizini ivice uzorka. Abnormalna zrna poseduju visok
stepen anizotropije, a inicijalno brz rast stagnira sa produžetkom žarenja. Uticaj hemijskog
sastava na pojavu AGG je ispitivan u slučaju četiri legure i rezultati su pokazali da niži
sadržaj legirajućih elemenata pospešuje AGG., During final annealing of Al-Mg alloys, abnormal grain growth (AGG) is undesirableasit
deteriorates mechanical properties. However, there is interest to investigate how the
introduction of the AGG during intermediate annealing affects microstructure and texture
development upon further processing.It is known that certain texture components and grain
boundary types can affect formabilityand IGC susceptibility. In this study, the effect of
intermediate annealing conditions andchemical composition on the microstructure of of
Al-Mg alloysis reported. The specimens,annealed isochronally at temperatures of 350-
550°C or isothermally at 520°C for various times, were examined by optical microscopy in
polarized light. It is found that the AGG is confined to a band near the surface.There is
astrong anisotropy in grains shape and initially rapid grain growth stagnates with
furtherannealing. The influence of the chemical composition on the AGG was investigated
in four alloys and the results showed that the decrease in the alloying elementscontent
promoted AGG.",
publisher = "Beograd : Srpsko hemijsko društvo = Serbian Chemical Society",
journal = "Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022",
title = "Abnormalni rast zrna u toku medjužarenja u Al-Mg legurama, Abnormal grain growth during intermediate annealing of Al-Mg alloys",
pages = "103",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7262"
}

Ghulam Isaq Khan, M., Popović, M.,& Radetić, T.. (2022). Abnormalni rast zrna u toku medjužarenja u Al-Mg legurama. in Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022
Beograd : Srpsko hemijsko društvo = Serbian Chemical Society., 103.
https://hdl.handle.net/21.15107/rcub_technorep_7262

Ghulam Isaq Khan M, Popović M, Radetić T. Abnormalni rast zrna u toku medjužarenja u Al-Mg legurama. in Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022. 2022;:103.
https://hdl.handle.net/21.15107/rcub_technorep_7262 .

Ghulam Isaq Khan, Muhamad, Popović, Miljana, Radetić, Tamara, "Abnormalni rast zrna u toku medjužarenja u Al-Mg legurama" in Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022 (2022):103,
https://hdl.handle.net/21.15107/rcub_technorep_7262 .