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    自然科學版 英文版

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    中南大學學報(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(黃伯云), HE Yue-hui(賀躍輝)

    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

    中南大學學報(自然科學版)
      ISSN 1672-7207
    CN 43-1426/N
    ZDXZAC
    中南大學學報(英文版)
      ISSN 2095-2899
    CN 43-1516/TB
    JCSTFT
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