Effects of induction heat treatment on mechanical properties of TiAl-based alloy

被引:0
|
作者
Peng, GQ [1 ]
Huang, BY [1 ]
He, YH [1 ]
机构
[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
来源
关键词
TiAl-based alloy; rapid heating; induction heat treatment; mechanical properties;
D O I
暂无
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The effects of rapid heating cyclic heat treatment on mechanical properties of a TiAl-based alloy (Ti-33Al-3Cr) were studied by means of an induction heating machine. The results show that: 1) fine fully-lamellar microstructure with colony size of about 50 mum and lamellar spacing of about 0.12 mum can be obtained; 2) the compression mechanical properties can be improved to a large extent and the best comprehensive compression mechanical properties can reach the yield stress 745 MPa, the large flow stress 1 672 MPa and the compression ratio 19.4%; and 3) the compression fracture at room temperature after induction heat treatment and aging is still typical cleavage fracture.
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页码:5 / 10
页数:6
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