Journal of Guangdong University of Technology ›› 2004, Vol. 21 ›› Issue (2): 16-20.

• Comprehensive Studies • Previous Articles     Next Articles

Flow Stress Behaviors of the Elevated Temperature Deformation for 7055 Aluminum Alloy

  

  1. (Faculty of Material and Energy,Guangdong Universtty of Technology,Gnangzhou 510643,China)
  • Online:2004-06-03 Published:2004-06-03

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Abstract: The Flow Stress of the compression deformation for 7055 aluminum alloy in the range of 250～450 ℃ is studied by isothermal compression of Gleeble-1500.The results show that the flow stress is controlled by strain tate and deformation temperature:the flow stress increases with increase of strain rate and decreases with increase of temperature,and the flow stress of 7055 aluminum alloy during high temperature deformation can be described by Zener-hollomon parameter.

Key words: 7055 aluminum alloy； flow stress； compression deformation；

[1] 林高用,张辉,郭武超,彭大暑.  7075铝合金热压缩变形流变应力[J]. 中国有色金属学报. 2001(03)

[2] 袁鸽成,黎祚坚,张新明.  新型铝锡硅合金高温塑性变形流变应力的研究[J]. 实验力学. 2001(01)

[3] 毛萍莉,杨柯,苏国跃.  铸态奥氏体不锈钢的热变形行为[J]. 金属学报. 2001(01)

[1] Yu WANG DongLiang LIN.A correlation between tensile flow stress and Zenner-Hollomon factor in TiAl alloys at high temperatures. Journal of Materials Science . 2000

[2] X X YAO.The strain-rate sensitivity of flow stress and work-hardening rate in a hot deformed Al-1. 0Mgalloy. Journal of Materials Science . 2000
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