| Ti-5A1-2Mo-3Zr合金的低温形变 |
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| 引用本文： | 曹国英, 曹厚义, 刘长胜, 邓永瑞. Ti-5A1-2Mo-3Zr合金的低温形变[J]. 工程科学学报, 1993, 15(1): 86-91. DOI: 10.13374/j.issn1001-053x.1993.01.015 |
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| 作者姓名： | 曹国英 曹厚义 刘长胜 邓永瑞 |
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| 摘 要： | 对Ti-523合金由室温到-75℃之间的拉伸性能和形变行为作了系统研究,发现淬火态在-75℃拉伸仍保持高塑性,而经回火的试样则塑性较低。两者的强度在低温下均升高,可比室温强度高10%。形变机理则由室温的滑移为主变为低温下的以孪生为主,交替温度可能在-15℃~-30℃之间。低温形变出现一种双重
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| 关 键 词： | 钦合金 低温形变 孪晶 |
| 收稿时间： | 1992-06-17 |
Deformation Mechanisms of Ti-5Al-2Mo-3Zr Alloy at low Temperatures |
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| Cao Guoying, Cao Houyi, Liu Zhangsheng, Deng Yongrui. Deformation Mechanisms of Ti-5Al-2Mo-3Zr Alloy at low Temperatures[J]. Chinese Journal of Engineering, 1993, 15(1): 86-91. DOI: 10.13374/j.issn1001-053x.1993.01.015 |
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| Authors: | Cao Guoying Cao Houyi Liu Zhangsheng Deng Yongrui |
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| Abstract: | This paper is to investigate the mechanical properties and deformation mechanisms at low temperatures of Ti-5AI-2Mo-3Zr alloy. The results showed that quenched samples kept theit high plasticity until -75℃.while the tempered samples were with very low elongation.This means that alloying zirconium is beneficial to low temperature plasticity only when it is at solution state, but not at precipitation state.The deformation mechanism changed from slip to twin during testing temperature lowering.TEM observation showed a special morphology of double |
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| Keywords: | titanium alloy low temperature deformation twin |
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