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Influence of thermo hydrogen treatment on hot deformation behavior of Ti600 alloy

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文摘 Hot compressive deformation of Ti600 alloy after thermo hydrogen treatment (THT) was carried out within hydrogen content range of 0-0.5%, temperature range of 760-920 ℃ and strain rate range of 0.01-10 s~(-1). The flow stress of Ti600 alloy after THT was obtained under hot deformation condition, and the influence of hydrogen on work-hardening rate (S~*), strain energy density (U~*), and deformation activation energy (Q) was analysed. The results show that the flow stress of Ti600 alloy decreases remarkably with the increase of hydrogen when the hydrogen content is less than 0.3%. Both S~* and U~* decrease with the increase of hydrogen when the hydrogen content is less than 0.3%, and when the hydrogen content is more than 0.3%, S~* and U~* increase with hydrogen addition. The value of Q decreases with the increase of strain at the same hydrogen content. The addition of small quantity of hydrogen leads to an increase of Q at small strain values, and when the strain reaches 0.6, the value of Q decreases gradually with the increase of hydrogen. When the hydrogen content is within the range of 0.1%-0.3%, the flow stress of Ti600 alloy is decreased when being deformed at the temperature range of 760-920 ℃.
来源 Transactions of Nonferrous Metals Society of China ,2009,19(1):65-71 【核心库】
DOI 10.1016/s1003-6326(08)60230-7
关键词 Ti600 alloy ; thermo hydrogen treatment ; hot deformation ; flow stress ; activation energy
地址

1. Beijing Aeronautical Manufacturing Technology Research Institute, Liaoning, Shenyang, 110004  

2. School of Materials and Metallurgy, Northeastern University, Liaoning, Shenyang, 110004  

3. Beijing Aeronautical Manufacturing Technology Research Institute, Beijing, 100024  

4. School of Materials and Metallurgy, Northeastern University, Beijing, 100024

语种 英文
文献类型 研究性论文
ISSN 1003-6326
学科 金属学与金属工艺
基金 国家973计划
文献收藏号 CSCD:3563624

参考文献 共 24 共2页

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引证文献 1

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