Effect of Compressive Stress on Phase Transformation in Ti-Fe-Mo Alloy During Hot Deformation

摘要：

Ti-1.5Fe-2.25Mo (mass. ％) alloy consisting of hep a phase and bcc β phase was investigated for microstructural changes during isothermal deformation at temperature of 10731123K. The results show that a modest deformation stress alters the phase equilibrium,restrains the hcp(α)-to-bcc(β) transformation and induces an unusual bcc(β)-to-hcp(α) transformation. These effects are believed to be caused by the stress-assisted diffusion of the β-stabilizing elements Fe and Mo. The atomic volumes of the involved phases are calculated to determine the effect of the new phase transformation.

关键词： Titanium alloys thermomechanical processing phase transformation diffusion

作者: Bin Liu Hirako Matsumoto Yunpin Li Akihiko Chiba Yong Liu Qiyuan Chen

作者单位: Institute for Materials Research,Tohoku University,Sendai 980-8577,Japan School of Chemistry and Che Institute for Materials Research,Tohoku University,Sendai 980-8577,Japan State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,P. R. China School of Chemistry and Chemical Engineering,Central South University,Changsha 410083,P. R. China

会议类型: 国际会议

会议名称: The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)

会议地点: 北京

会议语种:英文

页码: 547-551

在线出版日期: 2011-06-19（万方平台首次上网日期，不代表论文的发表时间）