Benfu Hu, Chengchang Jia, Hiroshi Kinoshita,  and Heishichiro Takahashi, Phase stability in an austenitic Fe-Cr-Mn (W,V) alloy, J. Univ. Sci. Technol. Beijing, 9(2002), No. 3, pp. 206-211.
Cite this article as:
Benfu Hu, Chengchang Jia, Hiroshi Kinoshita,  and Heishichiro Takahashi, Phase stability in an austenitic Fe-Cr-Mn (W,V) alloy, J. Univ. Sci. Technol. Beijing, 9(2002), No. 3, pp. 206-211.
Materials

Phase stability in an austenitic Fe-Cr-Mn (W,V) alloy

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  • Corresponding author:

    Benfu Hu    E-mail: hubenfu@163.net

  • Received: 22 October 2001
  • By means of deformation and long term aging, the stability and phase equilibrim characteristic of the C+N synthetically strengthening austenitic Fe-Cr-Mn (W,V) alloy were investigated. Experimental results indicate that the austenitic alloy remains stability and no γ→α transformation occurs under 500℃. Synthetic addition of C and N causes the grains to refine and powerfully retards formation of ε martensite and precipitation of σ phase. Ms point is elevated with long term aging at elevated temperature (500-700℃) due to a large number of strain induced carbides precipitate. Along with accelerated decomposition of strain induced α' martensite and occurrence of recrystallization, γ→α transformation and σ phase precipitation are promoted so that austenite becomes unstable.
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