| Ti-0.2Pd钛合金高温拉伸本构关系 |
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| 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. |
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| 作者姓名： | 李绍利 周清 邓竹君 施晓伟 |
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| 作者单位： | 南京航空航天大学机电学院,南京,210016 |
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| 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。
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| 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 |
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| Li Shaoli
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Zhou Qing
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Deng Zhujun
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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. |
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| Authors: | Li Shaoli Zhou Qing Deng Zhujun Shi Xiaowei |
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| Institution: | (College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics &Astronautics,Nanjing,210016,China) |
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| 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. |
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| Keywords: | Ti-0 2Pd titanium alloy constitutive equation hot deformation strain rate |
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