摘要
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 meth- ods and microstructure control techniques for titanium alloy bars. It summarizes the effects of pro- cessing parameters on the mechanisms and laws of microstructure evolution during βworking and （α ＋ β） working, including the kinetics and grains size of dynamic recrystallization （DRX） during 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 chal- lenges in the future are also pointed out.
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 meth- ods and microstructure control techniques for titanium alloy bars. It summarizes the effects of pro- cessing parameters on the mechanisms and laws of microstructure evolution during βworking and （α ＋ β） working, including the kinetics and grains size of dynamic recrystallization （DRX） during 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 chal- lenges in the future are also pointed out.
基金
the National Natural Science Foundation of China(51175427,51275415)
Open Fund of State Key Laboratory of Materials Processing and Die&Mould Technology of China(P2014-005)
the EU Marie Curie Actions–Mat Pro Future Project of China(FP7-PEOPLE-2012-IRSES-318968)
the‘‘111”Project of China(B08040)for their supports to this research
