Fracture micromechanisms in overaged 7000 alloy forgings
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2007
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Micromechanisms controlling the fracture damage in 7000 alloy forgings are studied for T73-type heat treatments. Insight into the fracture modes are obtained by varying the microstructural attributes associated with the coarse intermetallic (IM) particles and precipitates. To identify the fracture micromechanisms, extensive fractographic analysis by scanning electron microscopy (SEM) observation of the broken plane-strain fracture-toughness test specimen surfaces are carried out. The relative fractions of the various fracture modes as a function of microstructural features are quantitatively determined. The relationships between these data and values of fracture toughness are then established. It was found that multiple-fracture micromechanisms occur and the fracture toughness degradation is consistent with a change in the dominant fracture mode governed by variations in the alloy purity. (C) 2006 Elsevier B.V. All rights reserved.
Ključne reči:
7000 alloys / microstructure / SEM / TEM / mechanical propertiesIzvor:
Journal of Alloys and Compounds, 2007, 441, 1-2, 66-75Finansiranje / projekti:
- Specijalne teme mehanike loma materijala (RS-MESTD-MPN2006-2010-144027)
DOI: 10.1016/j.jallcom.2006.09.061
ISSN: 0925-8388
WoS: 000247991000016
Scopus: 2-s2.0-34250169384
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Cvijović, Zorica M. AU - Cvijović, Ivana AU - Vratnic, M. PY - 2007 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5490 AB - Micromechanisms controlling the fracture damage in 7000 alloy forgings are studied for T73-type heat treatments. Insight into the fracture modes are obtained by varying the microstructural attributes associated with the coarse intermetallic (IM) particles and precipitates. To identify the fracture micromechanisms, extensive fractographic analysis by scanning electron microscopy (SEM) observation of the broken plane-strain fracture-toughness test specimen surfaces are carried out. The relative fractions of the various fracture modes as a function of microstructural features are quantitatively determined. The relationships between these data and values of fracture toughness are then established. It was found that multiple-fracture micromechanisms occur and the fracture toughness degradation is consistent with a change in the dominant fracture mode governed by variations in the alloy purity. (C) 2006 Elsevier B.V. All rights reserved. T2 - Journal of Alloys and Compounds T1 - Fracture micromechanisms in overaged 7000 alloy forgings EP - 75 IS - 1-2 SP - 66 VL - 441 DO - 10.1016/j.jallcom.2006.09.061 ER -
@article{ author = "Cvijović, Zorica M. and Cvijović, Ivana and Vratnic, M.", year = "2007", abstract = "Micromechanisms controlling the fracture damage in 7000 alloy forgings are studied for T73-type heat treatments. Insight into the fracture modes are obtained by varying the microstructural attributes associated with the coarse intermetallic (IM) particles and precipitates. To identify the fracture micromechanisms, extensive fractographic analysis by scanning electron microscopy (SEM) observation of the broken plane-strain fracture-toughness test specimen surfaces are carried out. The relative fractions of the various fracture modes as a function of microstructural features are quantitatively determined. The relationships between these data and values of fracture toughness are then established. It was found that multiple-fracture micromechanisms occur and the fracture toughness degradation is consistent with a change in the dominant fracture mode governed by variations in the alloy purity. (C) 2006 Elsevier B.V. All rights reserved.", journal = "Journal of Alloys and Compounds", title = "Fracture micromechanisms in overaged 7000 alloy forgings", pages = "75-66", number = "1-2", volume = "441", doi = "10.1016/j.jallcom.2006.09.061" }
Cvijović, Z. M., Cvijović, I.,& Vratnic, M.. (2007). Fracture micromechanisms in overaged 7000 alloy forgings. in Journal of Alloys and Compounds, 441(1-2), 66-75. https://doi.org/10.1016/j.jallcom.2006.09.061
Cvijović ZM, Cvijović I, Vratnic M. Fracture micromechanisms in overaged 7000 alloy forgings. in Journal of Alloys and Compounds. 2007;441(1-2):66-75. doi:10.1016/j.jallcom.2006.09.061 .
Cvijović, Zorica M., Cvijović, Ivana, Vratnic, M., "Fracture micromechanisms in overaged 7000 alloy forgings" in Journal of Alloys and Compounds, 441, no. 1-2 (2007):66-75, https://doi.org/10.1016/j.jallcom.2006.09.061 . .