| 工艺因素对TC4合金应力松弛行为的影响 |
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| 引用本文： | 刘勇,尹钟大,朱景川,姜越.工艺因素对TC4合金应力松弛行为的影响[J].材料工程,2005(4):38-41. |
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| 作者姓名： | 刘勇 尹钟大 朱景川 姜越 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院,哈尔滨,150001;哈尔滨工业大学材料科学与工程学院,哈尔滨,150001;哈尔滨工业大学材料科学与工程学院,哈尔滨,150001;哈尔滨工业大学材料科学与工程学院,哈尔滨,150001 |
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| 摘 要： | 研究了TC4合金应力松弛行为的特征和工艺因素的影响.结果表明,TC4合金应力松弛行为可以分为两个阶段:第一阶段,应力松弛非常快,第二阶段应力松弛缓慢,但长时间应力松弛后剩余应力趋向于一极限值;应力松弛行为可以用应力松弛极限和应力松弛速率两个参量进行表征;温度升高时,松弛速率加快,应力松弛极限降低;同一温度不同初应力作用的应力松弛,应力松弛极限相同.
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| 关 键 词： | TC4合金 应力松弛 应力松弛极限 应力松弛速率 温度 初应力 |
| 文章编号： | 1001-4381(2005)04-0038-04 |
| 修稿时间： | 2003年12月16 |
Influence of Processing Factors on Stress Relaxation Behavior of TC4 Alloy |
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| LIU Yong,YIN Zhong-da,ZHU Jing-chuan,JIANG Yue.Influence of Processing Factors on Stress Relaxation Behavior of TC4 Alloy[J].Journal of Materials Engineering,2005(4):38-41. |
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| Authors: | LIU Yong YIN Zhong-da ZHU Jing-chuan JIANG Yue |
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| Abstract: | The stress relaxation behavior characters of TC4 alloy and influence of processing factors were studied . The results showed that the stress relaxed very fast at the first stage, while slowly at the second stage, and the residual stress approached a limit after a long relaxation time. Stress relaxation was characterized with stress relaxation limit and stress relaxation rate. The higher temperature resulted in higher stress relaxation rate and lower relaxation limit. Different initial stress gave the same relaxation limit at same temperature. |
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| Keywords: | TC4 alloy stress relaxation stress relaxation limit stress relaxation rate temperature initial stress |
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