Kinetics of Austenite to Ferrite Transformation in 3 mass% Mn Low Carbon Steels

  • Enomoto M.
    Department of Materials Science, Ibaraki University
  • Sonoyama T.
    Department of Materials Science, Ibaraki University
  • Yada H.
    Department of Mechanical Engineering, Shizuoka Institute of Science and Technology

書誌事項

タイトル別名
  • Kinetics of Austenite to Ferrite Transf
公開日
1998
DOI
  • 10.2320/matertrans1989.39.189
公開者
社団法人 日本金属学会

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説明

The kinetics of isothermal austenite to ferrite transformation in low carbon steels was studied theoretically. The transformation rates were calculated in steels containing 3 mass% Mn assuming various modes of transformation, i.e. massive, paraequilibrium and ternary (Fe–C–Mn) local equilibrium. A crude comparison was made with experimentally observed microstructures. The transformation is likely to occur accompanying carbon diffusion not only in the (α+γ) two phase field, but also in the α single phase field. In contrast, diffusion of Mn is unlikely to occur, or may not play a major role in the transformation.

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