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A new insight into ductile fracture of ultrafine-grained Al-Mg alloys

Yu, Hailiang; Tieu, A. Kiet; Lu, Cheng; Liu, Xiong; Liu, Mao; Godbole, Ajit; Kong, Charlie; Qin, Qinghua


It is well known that when coarse-grained metals undergo severe plastic deformation to be transformed into nano-grained metals, their ductility is reduced. However, there are no ductile fracture criteria developed based on grain refinement. In this paper, we propose a new relationship between ductile fracture and grain refinement during deformation, considering factors besides void nucleation and growth. Ultrafine-grained Al-Mg alloy sheets were fabricated using different rolling techniques at...[Show more]

CollectionsANU Research Publications
Date published: 2015-04-08
Type: Journal article
Source: Scientific Reports
DOI: 10.1038/srep09568


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