金属学报  1980, Vol. 16 Issue (4): 426-429

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Fe-X-C系马氏体相变热力学

徐祖耀

上海交通大学

THERMODYNAMICS OF THE MARTENSITIC TRANSFORMATION IN Fe-X-C SYSTEMS

Xu Zuyao (T. Y. Hsu) Shanghai Jiaotong University

徐祖耀. Fe-X-C系马氏体相变热力学[J]. 金属学报, 1980, 16(4): 426-429.
. THERMODYNAMICS OF THE MARTENSITIC TRANSFORMATION IN Fe-X-C SYSTEMS[J]. Acta Metall Sin, 1980, 16(4): 426-429.

摘要 参考文献 相关文章 Metrics 全文: PDF(301 KB)   摘要: Fe-X-C系马氏体相变时的△G_(Fe-X-C)~(γ→α)为:△G_(Fe-X-C)~(γ→α)=_(xFe)△G_Fe~(γ→α)+_(XC)RT×ln_(γ_C~α/γ_C~γ)+x_i△G_i~(γ→α)+△Ω~(γ→α)其中γ_C~α和γ_C~γ分别表示碳在Fe-X-C系铁素体和奥氏体内的活度系数.对Fe-Ni-C和Fe-Cr-C系所求得的M_S值和实验值很好符合.碳在Fe-X-C系的活度值及对奥氏体的强化作用主要决定Fe-X-C系的M_s值.碳是决定Fe-X-C系相变驱动力的主要元素. Abstract：The △G_(Fe-X-C)~(γ→α) in the martensitic transformation in Fe-X-C system is sugges-ted as: △G_(Fe-X-C)~(γ→α)=x_(Fe)△G_(Fe-X-C)~(γ→α)+x_C RT lnγ_C~α/γ_C~γ+x_i△G_i~(γ→α) +△Ω~(γ→α)where γ_C~α and γ_C~γ are activity of carbon in Fe-X-C ferrite and austenite respec-tively. The M_s of Fe-Ni-C and Fe-Cr-C obtained in present work are in goodagreement with the experimental results, showing that the above equation inavailable and convenient for application. The M_s of Fe-X-C system mainlydepends upon the activity of carbon in Fe-X-C and the strengthening effect onaustenite and carbon play an important role to determine the driving force of themartensite transformation in Fe-X-C. 收稿日期: 1980-04-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 徐祖耀 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1980/V16/I4/426 [1] Fisher, J. C., Trans. AIME, 185 (1949) , 688． [2] Rao, M. M., Russell, R. J. Winchell, P. G., Trans. AIME, 239 (1967) , 634． [3] 徐祖耀,金属学报,15(1979) ,329． [4] 徐祖耀,金属学报,16(1980) ,420 [5] Schoen, F. J. and Owen, W. S., Met. Trans., 2 (1971) , 2431． [6] Wada, T., Wada, H., Elliott, J. F. and Chipman, J., Met. Trans., 2 (1971) , 2199． [7] Wada, T., Wada, H., Elliot, J. F. and Chipman. J., Met. Trans., 3 (1972) , 2865． [8] Swartz, J. C., Trans. AIME, 245 (1969) , 1083． [9] Labo, J. A. and Geiger, G. H., Met. Trans., 7A (1976) , 1347． [10] Kaufman, L., Clougherty, E. V. and Weiss, R. J., Acta Met., 11 (1963) , 323． [11] Goodenow, R. H. and Hehemann, R. F., Trans. AIME, 233 (1965) , 1777． [12] Rao, M. M. and Winchell, P. G., Trans. AIME, 239 (1967) 956． [13] Magee, C. L. and Davies, R. G., Acta Met., 19 (1971) , 345． [14] Yeo, R. B. G., Trans. AIME, 227 (1963) , 884． [15] Steven, W. and Haynes, A. G., J. Iron Steel Inst. 183 (1956) , 349． [16] Lyman, T. and Troians, A. R., Trans. Amer. Soc. Metals, 37 (1946) , 402． [17] Owen, W. S., Wilson, E. A. and Bell, T., High Strength Materials, Ed. by V. F. Zackay, Wiley, N. Y., 1965, p. 185． [18] Andrews, K. W., J. Iron Steet Inst. 203 (1965) , 721． [19] Bodsworth, C., Davidson, I. M. and Atkinson, D., Trans. AIME, 242 (1968) , 1135． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed