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Influence of thermo hydrogen treatment on hot deformation behavior of Ti600 alloy
Alternative TitleInfluence of thermo hydrogen treatment on hot deformation behavior of Ti600 alloy
Zhao Jingwei1; Ding Hua1; Wang Yaoqi2; Hou Hongliang2
2009
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume19Issue:1Pages:65-71
AbstractHot 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 degrees C 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 degrees C.
Other AbstractHot 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 ℃.
KeywordTI-6AL-4V ALLOY ALPHA-TITANIUM MICROSTRUCTURE COMPRESSION FRACTURE IMI834 Ti600 alloy thermo hydrogen treatment hot deformation flow stress activation energy
Indexed ByCSCD
Language英语
CSCD IDCSCD:3563624
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/148424
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.Beijing Aeronaut Mfg Technol Res Institute, Beijing 100024, Peoples R China
Recommended Citation
GB/T 7714
Zhao Jingwei,Ding Hua,Wang Yaoqi,et al. Influence of thermo hydrogen treatment on hot deformation behavior of Ti600 alloy[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2009,19(1):65-71.
APA Zhao Jingwei,Ding Hua,Wang Yaoqi,&Hou Hongliang.(2009).Influence of thermo hydrogen treatment on hot deformation behavior of Ti600 alloy.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,19(1),65-71.
MLA Zhao Jingwei,et al."Influence of thermo hydrogen treatment on hot deformation behavior of Ti600 alloy".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 19.1(2009):65-71.
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