Damage evolution of metallic materials during high temperature plastic deformation

被引：0
|
作者：
Wang, Ling-Yun [1 ]
Liu, Xue-Feng [2 ]
Tang, Ai-Tao [1 ]
Huang, Guang-Jie [1 ]
机构：
[1] Coll. of Mat. Sci. and Eng., Chongqing Univ., Chongqing 400044, China
[2] Dept. of Metal Mater. Eng., Sichuan Univ., Chengdu 610065, China
来源：
Transactions of Nonferrous Metals Society of China (English Edition) | 2002年 / 12卷 / 03期
关键词：
Aluminum alloys - Failure (mechanical) - Failure analysis - High temperature effects - Mathematical models - Metals;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The damage evolution of high temperature plastic deformation of metallic materials was studied by use of continuum damage mechanics (CDM) theory. Based on thermodynamics, a damage variable D and Zener-Hollomon parameter Z and the effective stress concept, a damage evolution model of high temperature plastic deformation was derived and was used to analyze the damage evolution of 1420 Al-Li alloy during high temperature plastic deformation. The model that is verified by tests can also be applied to the materials that are loaded prorata or out of proportion at high temperature plastic deformation. It extends the applied scope of damage mechanics.
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页码：379 / 382
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