The Advance in the Plastic Forming Theory and Technology of Titanium Alloys

摘要：

The objective of this paper is to introduce recent studies of my research group in regard to advance plastic forming theory and technology of titanium alloys. In my research group, the deformation behavior and the microstructure evolution of titanium alloys are in depth investigated in high temperature deformation. New microstructure model and constitutive relationship of titanium alloys are developed based on internal state variable method. The novelty theory of processing maps is proposed using the microstructure-based viscoplastic constitutive relationship, the law of classical thermodynamic and Zieglers continuum principles. Those models are applied to the hot forming of titanium alloys so as to optimize the processing parameters and realize the precision and the net shape manufacturing process with reduced costs and short cycle. Moreover, advance plastic forming technology,including thermohydrogen processing(THP) and equal channel angular pressing(ECAP)are applied to titanium alloys in order to refine microstructure and improve mechanical properties.

关键词： Titanium alloy plastic forming deformation behavior microstructure evolution processing maps

作者: Jiao Luo Miaoquan Li

作者单位: School of Materials Science and Engineering,Northwestern Polytechnical University,Xian 710072,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: 244-251

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）