| Effect of heat treatment on thermal stability of Ti40 alloy |
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| 引用本文： | 辛社伟 赵永庆 曾卫东. Effect of heat treatment on thermal stability of Ti40 alloy[J]. 中国有色金属学会会刊, 2007, 17(A01): 526-531 |
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| 作者姓名： | 辛社伟 赵永庆 曾卫东 |
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| 作者单位： | [1]School of Materials, Northwestern Polytechnical University, Xi＇an 710012, China [2]Titanium Alloy Research Center, Northwest Institute for Nonferrous Metal Research, Xi＇an 710016, China |
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| 基金项目： | Project（MKPT-01-101ZD） supported by the National Key Project of China; Project（2007CB613807） supported by the National Basic Research Program of China |
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| 摘 要： | Five new heat treatment processes were designed, which were divided into three groups by their characteristics. The microstructures and mechanical properties of the alloy after the five heat treatments and thermal exposure at 500, 550℃ for 100 h were tested. The results indicate that a little differences exist in the performance of mechanical properties at room-temperature after the five heat treatments, and the thermal stability is the key factor for determining heat treatment process. Among the three groups of heat treatment processes, the best thermal stability is achieved after the first group of heat treatment. After annealing treatment at intermediate temperature, some defects and uneven grain boundaries are remained, which leads to the reduction fractions of precipitations on unit grain boundary and the harmful effect of precipitations on grain boundary is weakened. The process of annealing at 650 ℃for 4 h is recommended the best heat treatment process for Ti40 alloy.
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| 关 键 词： | 钛合金 热处理技术 耐热性能 物理性能 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
Effect of heat treatment on thermal stability of Ti40 alloy |
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| XIN She-wei, ZHA Yong-qing, ZENG Wei-dong. Effect of heat treatment on thermal stability of Ti40 alloy[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(A01): 526-531 |
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| Authors: | XIN She-wei ZHA Yong-qing ZENG Wei-dong |
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| Affiliation: | XIN She-wei, ZHA0 Yong-qing, ZENG Wei-dong |
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| Abstract: | |
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| Keywords: | Ti40 burn resistant titanium alloy heat treatment thermal stability mechanical property |
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