Microstructural dependence of fracture toughness in high-strength 7000 forging alloys
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2008
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The effects of microstructural parameters associated with the coarse intermetallic phases particles and precipitates on the fracture toughness of the overaged 7000 alloy forgings are investigated. Detailed microstructural and fractographic analysis together with fracture toughness tests are carried out using three alloys with different (Fe + Si) contents. The fracture mechanisms are identified and area fractions of different fracture modes are assessed. The data are then quantitatively correlated to plane-strain fracture toughness, K-Ic, and the bulk microstructural attributes estimated via image analysis. A multiple micromechanism-based model is developed, which accurately describes the dependence of K-Ic on individual microstructural parameters.
Ključne reči:
7000 aluminium alloys / microstructure / image analysis / toughness / modellingIzvor:
Engineering Fracture Mechanics, 2008, 75, 8, 2115-2129Izdavač:
- Pergamon-Elsevier Science Ltd, Oxford
Finansiranje / projekti:
- Specijalne teme mehanike loma materijala (RS-144027)
DOI: 10.1016/j.engfracmech.2007.10.010
ISSN: 0013-7944
WoS: 000254354000012
Scopus: 2-s2.0-39249083428
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Cvijović, Zorica AU - Rakin, Marko AU - Vratnica, Maja AU - Cvijović, Ivana PY - 2008 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1320 AB - The effects of microstructural parameters associated with the coarse intermetallic phases particles and precipitates on the fracture toughness of the overaged 7000 alloy forgings are investigated. Detailed microstructural and fractographic analysis together with fracture toughness tests are carried out using three alloys with different (Fe + Si) contents. The fracture mechanisms are identified and area fractions of different fracture modes are assessed. The data are then quantitatively correlated to plane-strain fracture toughness, K-Ic, and the bulk microstructural attributes estimated via image analysis. A multiple micromechanism-based model is developed, which accurately describes the dependence of K-Ic on individual microstructural parameters. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Engineering Fracture Mechanics T1 - Microstructural dependence of fracture toughness in high-strength 7000 forging alloys EP - 2129 IS - 8 SP - 2115 VL - 75 DO - 10.1016/j.engfracmech.2007.10.010 ER -
@article{ author = "Cvijović, Zorica and Rakin, Marko and Vratnica, Maja and Cvijović, Ivana", year = "2008", abstract = "The effects of microstructural parameters associated with the coarse intermetallic phases particles and precipitates on the fracture toughness of the overaged 7000 alloy forgings are investigated. Detailed microstructural and fractographic analysis together with fracture toughness tests are carried out using three alloys with different (Fe + Si) contents. The fracture mechanisms are identified and area fractions of different fracture modes are assessed. The data are then quantitatively correlated to plane-strain fracture toughness, K-Ic, and the bulk microstructural attributes estimated via image analysis. A multiple micromechanism-based model is developed, which accurately describes the dependence of K-Ic on individual microstructural parameters.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Engineering Fracture Mechanics", title = "Microstructural dependence of fracture toughness in high-strength 7000 forging alloys", pages = "2129-2115", number = "8", volume = "75", doi = "10.1016/j.engfracmech.2007.10.010" }
Cvijović, Z., Rakin, M., Vratnica, M.,& Cvijović, I.. (2008). Microstructural dependence of fracture toughness in high-strength 7000 forging alloys. in Engineering Fracture Mechanics Pergamon-Elsevier Science Ltd, Oxford., 75(8), 2115-2129. https://doi.org/10.1016/j.engfracmech.2007.10.010
Cvijović Z, Rakin M, Vratnica M, Cvijović I. Microstructural dependence of fracture toughness in high-strength 7000 forging alloys. in Engineering Fracture Mechanics. 2008;75(8):2115-2129. doi:10.1016/j.engfracmech.2007.10.010 .
Cvijović, Zorica, Rakin, Marko, Vratnica, Maja, Cvijović, Ivana, "Microstructural dependence of fracture toughness in high-strength 7000 forging alloys" in Engineering Fracture Mechanics, 75, no. 8 (2008):2115-2129, https://doi.org/10.1016/j.engfracmech.2007.10.010 . .