Nano-structure evolution of secondary Al₃(Sc_1−xZr_x) particles during superplastic deformation and their effects on deformation mechanism in Al-Zn-Mg alloys

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• 关键词：Alloys ; Nano-structure ; Particles ; Deformation ; Activation energy ; Constitutive equation
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：142-153
• 全文大小：5089 K
• 卷排序：695

文摘

Characterize nano-structure of secondary Al3(Sc1−xZrx) particles during superplastic deformation. Calculate strain rate sensitivity and deformation activation energy at different strains. Establish superplastic constitutive equations of Al-Zn-Mg with and without Al3(Sc1−xZrx). Reveal effects of Al3(Sc1−xZrx) on work hardening and dynamic softening deformation mechanisms.