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Ti-0.2Pd钛合金高温拉伸本构关系
引用本文:李绍利,周清,邓竹君,施晓伟. Ti-0.2Pd钛合金高温拉伸本构关系[J]. 南京航空航天大学学报, 2012, 44(Z1): 114-116
作者姓名:李绍利  周清  邓竹君  施晓伟
作者单位:南京航空航天大学机电学院,南京,210016
摘    要:采用高温拉伸试验,研究了Ti-0.2Pd在600~800°C,应变速率10-4~10-1s-1的高温流变行为。获得了流变应力与应变速率和变形温度的依存关系以及变形激活能Q为100.9kJ.mol-1,应力指数n为4.8。建立了Ti-0.2Pd合金热变形的理论基础。

关 键 词:Ti-0.2Pd钛合金  本构方程  热变形  应变速率

Constitutive Relationship of Ti-0.2Pd Alloy at Elevated Temperatures
Li Shaoli , Zhou Qing , Deng Zhujun , Shi Xiaowei. Constitutive Relationship of Ti-0.2Pd Alloy at Elevated Temperatures[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2012, 44(Z1): 114-116
Authors:Li Shaoli    Zhou Qing    Deng Zhujun    Shi Xiaowei
Affiliation:(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics &Astronautics,Nanjing,210016,China)
Abstract:Hot tensile test is conducted to study the deformation behavior of Ti-0.2Pd titanium alloys(TA9) at 600—800°C and at strain rate 10-4—10-1 s-1.The results show that the flow stress is affected by both the strain rate and the temperature.From the tests,the associated deformation mechanism is concluded that the deformation activation energy Q is 100.9 kJ/mol and the stress exponent n is 4.8.The theorical basis for the hot-deformation of Ti-0.2Pd alloy is established.
Keywords:Ti-0.2Pd titanium alloy  constitutive equation  hot deformation  strain rate
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