KINETICS OF FCC-]BCC HETEROGENEOUS MARTENSITIC NUCLEATION .2. THERMAL-ACTIVATION

被引:142
|
作者
GHOSH, G
OLSON, GB
机构
[1] Department of Materials Science and Engineering, Robert R. McCormick School of Engineering, Northwestern University, Evanston
来源
ACTA METALLURGICA ET MATERIALIA | 1994年 / 42卷 / 10期
关键词
D O I
10.1016/0956-7151(94)90469-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A critical analysis of the experimental data for the activation energy for f.c.c --> b.c.c. martensitic nucleation in Fe Ni, Fe-Ni-C, Fe Ni-Cr and Fe-Ni-Mn alloys has been performed employing the theory of dislocation discrete-obstacle interaction. It is shown that the normalized activation energy Q (T)/mu(T) vs normalized driving force DELTAg(n)/DELTAg data for isothermal martensitic nucleation follows the general form proposed by Kocks, Argon and Ashby [in Thermodynamics and Kinetics of Slip, Progress in Materials Science, Vol. 19. Pergamon Press, Oxford (1975)] for the kinetics of conventional slip deformation in solid solution strengthened alloys. Curvature of the Q (DELTAg) function defines a temperature dependent activation volume for isothermal martensitic nucleation. The analysis is consistent with rate control by the interaction of solute atoms with the thermally-assisted motion of the martensitic interface. The contribution of a solute to the thermal component of interfacial friction is found to scale with its athermal contribution. The analysis incorporates kinetic data for the effects of applied elastic stress and plastic pre-strain, providing a quantitative estimate of the interfacial friction from dislocation forest hardening.
引用
收藏
页码:3371 / 3379
页数:9
相关论文
共 50 条
  • [1] GENERAL MECHANISM OF MARTENSITIC NUCLEATION .2. FCC-]BCC AND OTHER MARTENSITIC TRANSFORMATIONS
    OLSON, GB
    COHEN, M
    METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1976, 7 (12): : 1905 - 1914
  • [2] KINETICS OF FCC-]BCC HETEROGENEOUS MARTENSITIC NUCLEATION .1. THE CRITICAL DRIVING-FORCE FOR ATHERMAL NUCLEATION
    GHOSH, G
    OLSON, GB
    ACTA METALLURGICA ET MATERIALIA, 1994, 42 (10): : 3361 - 3370
  • [3] DISTRIBUTED-ACTIVATION KINETICS OF HETEROGENEOUS MARTENSITIC NUCLEATION
    LIN, MF
    OLSON, GB
    COHEN, M
    METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1992, 23 (11): : 2987 - 2998
  • [4] A crystallographic model of fcc/bcc martensitic nucleation and growth
    Yang, J. B.
    Yang, Z. G.
    Nagai, Y.
    Hasegawa, M.
    ACTA MATERIALIA, 2010, 58 (05) : 1599 - 1606
  • [5] MID-RIB FORMATION IN THE FCC-]BCC(BCT) MARTENSITIC-TRANSFORMATION
    MENDELSON, S
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1980, 25 (03): : 310 - 310
  • [6] KINETICS OF STRAIN-INDUCED FCC-]HCP MARTENSITIC-TRANSFORMATION
    REMY, L
    METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1977, 8 (02): : 253 - 258
  • [7] GENERAL MECHANISM OF MARTENSITIC NUCLEATION .1. GENERAL CONCEPTS AND FCC-]HCP TRANSFORMATION
    OLSON, GB
    COHEN, M
    METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1976, 7 (12): : 1897 - 1904
  • [8] The mechanism of bcc α′ nucleation in single hcp ε laths in the fcc γ → hcp ε → bcc α′ martensitic phase transformation
    Yang, Xu-Sheng
    Sun, Sheng
    Zhang, Tong-Yi
    ACTA MATERIALIA, 2015, 95 : 264 - 273
  • [9] The kinetics of martensitic nucleation by thermal and stress activation in iron based alloys
    Zhao, Xinqing
    Jinshu Xuebao/Acta Metallurgica Sinica, 2001, 37 (11): : 1153 - 1158
  • [10] The kinetics of martensitic nucleation by thermal and stress activation in iron based alloys
    Zhao, XQ
    ACTA METALLURGICA SINICA, 2001, 37 (11) : 1153 - 1158