Microstructure control techniques in primary hot working of titanium alloy bars: A review
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- 作者：Lianggang GuoAuthor Vitae ; Xiaoguang Fan ; Gaofeng Yu ; He Yang ; yanghe@nwpu.edu.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Hot working ; Mechanisms ; Microstructure ; Simulation ; Titanium alloy
- 刊名：Chinese Journal of Aeronautics
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：29
- 期：1
- 页码：30-40
- 全文大小：742 K
文摘
How to control the microstructure of titanium alloy bars is important to fabricating high-performance aerial forgings. This paper gives a thorough survey of the manufacturing methods and microstructure control techniques for titanium alloy bars. It summarizes the effects of processing parameters on the mechanisms and laws of microstructure evolution during β working and (α + β) working, including the kinetics and grains size of dynamic recrystallization (DRX) during β deformation and the kinetics and grains size of spheroidization during (α + β) deformation. The trends in microstructure control techniques are presented for fabricating titanium alloy bars with high efficiency, low cost, and high quality by means of β/(α + β) working, and the puzzles and challenges in the future are also pointed out.