Critical driving force for martensitic transformation fcc (γ)→hcp(ε) in Fe-Mn-Si shape memory alloys

被引：0
|
作者：
金学军
徐祖耀
李麟
机构：
来源：
Science in China(Series E:Technological Sciences) | 1999年 / 03期
基金：
中国国家自然科学基金;
关键词：
critical driving force; martensitic transformation; Fe-Mn-Si alloy;
D O I：
暂无
中图分类号：
TG139.6 [];
学科分类号：
摘要：
By the application of Chou’s new geometry model and the available data from binary Fe-Mn, Fe-Si and Mn-Si systems, as well as SGTE DATA for lattice stability parameters of three elements from Dinsdale, the Gibbs free energy as a function of temperature of the fcc（γ） and hep（ε） phases in the Fe-Mn-Si system is reevaluated. The relationship between the Neel temperature of the γ phase and concentration of constituents in mole fraction, is fitted and verified by the experimental results. The critical driving force for the martensitic transformation fcc （γ）→ hep （ε）, △ G, defined as the free energy difference between γ and ε phases at Mof various alloys can also be obtained with a known M. It is found that the driving force varies with the composition of alloys, e. g. △ G= - 100.99 J/mol in Fe-27.0Mn-6.0Si and △ G= - 122.11 J/mol in Fe-26.9Mn-3.37Si. The compositional dependence of critical driving force accorded with the expression formulated by Hsu of the
引用
收藏
页码：266 / 274
页数：9
相关论文
共 50 条
  • [31] Effect of stacking fault probability on γ-ε martensitic transformation and shape memory effect in Fe-Mn-Si based alloys
    Jiang, BH
    Qi, XA
    Yang, SX
    Zhou, WM
    Hsu, TY
    ACTA MATERIALIA, 1998, 46 (02) : 501 - 510
  • [32] Fe-Mn-Si based shape memory alloys
    Hsu, T.Y.
    Materials Science Forum, 2000, 327 : 199 - 206
  • [33] Fe-Mn-Si based shape memory alloys
    Hsu, TY
    SHAPE MEMORY MATERIALS, 2000, 327-3 : 199 - 206
  • [34] Phase stability and fcc/hcp martensitic transformation in Fe-Mn-Si alloys -: Part I.: Experimental study and systematics of the MS and AS temperatures
    Cotes, S
    Guillermet, AF
    Sade, M
    JOURNAL OF ALLOYS AND COMPOUNDS, 1998, 278 (1-2) : 231 - 238
  • [35] The shape recovery conditions for Fe-Mn-Si alloys: An interplay between martensitic transformation and plasticity
    Druker, A.
    Vermaut, P.
    Malarria, J.
    MATERIALS CHARACTERIZATION, 2018, 139 : 319 - 327
  • [36] ''Some features of gamma-epsilon martensitic transformation and shape memory effect in Fe-Mn-Si based alloys''
    Gulyaev, AA
    JOURNAL DE PHYSIQUE IV, 1995, 5 (C8): : 469 - 474
  • [37] The stress relaxation characteristic and martensitic transformation of Fe-Mn-Si shape memory alloys under different deformation condition
    Liu, Linlin
    Lin, Chengxin
    Zhou, Chaoyu
    FRONTIERS OF ADVANCED MATERIALS AND ENGINEERING TECHNOLOGY, PTS 1-3, 2012, 430-432 : 106 - 109
  • [38] Comparison using neutron diffraction of martensitic transformation in Fe-Mn-Si shape memory alloys with and without VN precipitates
    Oliver, E. C.
    Mori, T.
    Daymond, M. R.
    Withers, P. J.
    MATERIALS SCIENCE AND TECHNOLOGY, 2008, 24 (08) : 902 - 907
  • [39] Gibbs free energy evaluation of the fcc(γ) and hcp(ε) phases in Fe-Mn-Si alloys
    Calphad, 3 (443-448):
  • [40] Gibbs free energy evaluation of the fcc(γ) and hcp(ε) phases in Fe-Mn-Si alloys
    Li, L
    Hsu, TY
    CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 1997, 21 (03): : 443 - 448
12345