Deformation mechanisms in an ultra-fine grained Al alloy
Sabirov, Ilchat, Barnett, Matthew Robert, Estrin, Yuri, Timokhina, Ilana and Hodgson, Peter 2009, Deformation mechanisms in an ultra-fine grained Al alloy, International journal of materials research, vol. 100, no. 12, pp. 1679-1685.
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This work focuses on the deformation behavior of an ultra-fine grained Al-Mg-Si alloy processed by equal channel angular pressing over a wide range of temperatures and strain rates. The effect of temperature and strain rate on the homogeneity of plastic deformation, the evolution of microstructure, the strain rate sensitivity and the underlying deformation mechanisms are investigated. It is demonstrated that the localization of plastic deformation at the micro scale is triggered by grain boundary sliding due to grain boundary sliding due to grain boundary diffusion. The contributions of different deformation mechanisms during the plastic deformation of the material are discussed.
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Field of Research
091207 Metals and Alloy Materials
Socio Economic Objective
861199 Basic Metal Products (incl. Smelting, Rolling, Drawing and Extruding) not elsewhere classified
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