| Ti-10V-2Fe-3Al合金热压流变应力的研究 |
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| 引用本文： | 彭益群,潘雅琴. Ti-10V-2Fe-3Al合金热压流变应力的研究[J]. 航空学报, 1991, 12(1): 63-68 |
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| 作者姓名： | 彭益群 潘雅琴 |
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| 作者单位： | 北京航空航天大学(彭益群)，北京航空航天大学(潘雅琴) |
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| 摘 要： | 测试了Ti-10V-2Fe-3Al合金在β区850℃～950℃、ε=5×10~(-3)～10s~(-1)条件下的压缩真应力-真应变曲线。研究了变形组织。结果表明:在850℃～950℃、ε=10~(-1)～10s~(-1)范围内变形,动态回复是主要软化机制,其σ-ε曲线为动态回复型,变形后的组织为拉长晶粒。对所得的σ-ε曲线进行了数学分析,得出了流变应力模型。
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| 关 键 词： | 钛合金 流变应力 动态回复 应力指数 |
HOT COMPRESSIVE FLOW STRESS STUDY OF Ti-10V-2Fe-3Al ALLOY |
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| Beijing University of Aeronautics and Astronautics Peng Yiqun and Pan Yaqin. HOT COMPRESSIVE FLOW STRESS STUDY OF Ti-10V-2Fe-3Al ALLOY[J]. Acta Aeronautica et Astronautica Sinica, 1991, 12(1): 63-68 |
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| Authors: | Beijing University of Aeronautics and Astronautics Peng Yiqun and Pan Yaqin |
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| Affiliation: | Beijing University of Aeronautics and Astronautics Peng Yiqun and Pan Yaqin |
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| Abstract: | The compressive true stress vs.true strain curves of Ti-10V-2Fe-3Al alloy have been measured in β phase region at 850℃~950℃×10-ss-1~10s-1.The results show that the soft mechanism is mainly dynamic recovery when the specimen is deformed in the range of T = 850℃~950℃ and e = 10-1s-1~10s-1, the -e curves show the shape of the dynamic recovery and the deformed grain is lengthened. The mathematical model of flow stress has been proposed on the basis of mathematical analysis. |
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| Keywords: | titanium alloy flow stress dynamic recovery stress exponent. |
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