Influence of interstitial content on mechanical properties of new type of near α titanium alloy at cryogenic temperature

摘要：

The influence of interstitial content on mechanical properties of a new type of near α titanium alloy (Ti-Zr-Mo-Nb-Sn) at cryogenic temperature was studied.The results show that interstitial content affects the mechanical properties of the alloy at cryogenic temperature.Interstitial element atoms solving into lattice causes the increasing of degree of distortion,which limits the sliding and twinning of dislocations.Reducing interstitial content is beneficial to generation of dislocation sliding and deformation twins.With interstitial element content reducing,the impact toughness and the elongation of the alloy decrease rapidly while the strength decreases weakly.To obtain good over-all properties at cryogenic temperature,the interstitial element content in this alloy must be controlled to extra low grade.

关键词： interstitial content oxygen equivalent α titanium alloy mechanical properties cryogenic temperature

作者: LIU Wei DU Yu YANG Guan-jun

作者单位: Northwest Institute for Nonferrous Metal Research,Xi’an 710016,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）