Analysis of local crystallographic orientation in an annealed Ti60 billet
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2019年第4期
论文作者：Z.B.Zhao Z.Liu Q.J.Wang J.R.Liu R.Yang
文章页码：591 - 595
摘 要：A heterogeneous microstructure in terms of local orientation distribution is often found in near-α titanium alloys. The presence of large regions with similar crystallographic orientation, called ‘macrozones’,could drastically decrease the fatigue performance of titanium alloys. The present work reports on the crystallographic orientation of a near-α titanium alloy, Ti60, billet after annealing in an α+β phase field.The texture was found to be weak, and no obvious macrozone was found in our measured zone where the variant selection is suppressed. Meanwhile, in-depth electron backscattered diffraction（EBSD） analysis was applied to evaluate the final microstructure, and the mechanisms by which they formed were analyzed.
Z.B.Zhao1，Z.Liu1,2，Q.J.Wang1，J.R.Liu1，R.Yang1
1. Institute of Metal Research,Chinese Academy of Sciences2. School of Materials Science and Engineering,University of Science and Technology of China
摘 要：A heterogeneous microstructure in terms of local orientation distribution is often found in near-α titanium alloys. The presence of large regions with similar crystallographic orientation, called ‘macrozones’,could drastically decrease the fatigue performance of titanium alloys. The present work reports on the crystallographic orientation of a near-α titanium alloy, Ti60, billet after annealing in an α+β phase field.The texture was found to be weak, and no obvious macrozone was found in our measured zone where the variant selection is suppressed. Meanwhile, in-depth electron backscattered diffraction（EBSD） analysis was applied to evaluate the final microstructure, and the mechanisms by which they formed were analyzed.
关键词：
