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 author}Author 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.