自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 9    No. 1    March 2002

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Effects of induction heat treatment on
mechanical properties of TiAl-based alloy
PENG Chao-qun(彭超群),HUANG Bai-yun(黄伯云), HE Yue-hui(贺跃辉)

StateKeyLaboratoryforPowderMetallurgy, Central South University, Changsha410083, China

Abstract: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 50μm and lamellar spacing of about 0.12μm 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 745MPa, the large flow stress 1 672MPa 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.

 

Key words: TiAl-based alloy; rapid heating; induction heat treatment; mechanical properties

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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