Transactions of Materials and Heat Treatment

Title：Hot compression behavior of aluminum alloy 5005

Authors： Wang Xiaona Zhang Hui

Unit： Hunan University

KeyWords： aluminum alloy 5005 hot compression deformation flow stress constitutive equation copper clad aluminum magnesium conductive bus bar

ClassificationCode：TG146.2+1

year,vol(issue):pagenumber：2017,42(2):119-123

Abstract：

The hot compression deformation of aluminum alloy 5005 was performed with temperature 300-500 ℃ and strain rate 0.01-10 s-1 by Gleeble-3500 thermal simulator, and the flow stress of material was studied as well as the constitutive equation was built. The results show that aluminum alloy 5005 has a negativity temperature sensitivity and a positive strain rate sensitivity under the experimental conditions. The flow stress increases with the increase of deformation and tends to maintain constant after reaching a peak value, at this time the rheological curve shows steady-state rheological characteristics. Therefore, the flow stress of aluminum alloy 5005 can be represented by hyperbolic sine equation with Zener-Hollomon parameter, and the hot deformation activation energy is 180.69 kJ·mol-1.

Funds：

国家自然科学基金资助项目（51574118）

王小娜（1989-），女，硕士研究生张辉（1963-），男，博士，教授，博士生导师

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