Acta Metall Sin  1988, Vol. 24 Issue (3): 155-160    DOI:

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EFFECT OF AUSTENITE STRENGTHENING ON MARTENSITIC AND BAINITIC TRANSFORMATIONS

XU Zuyao (T.Y. Hsu);CHEN Weizhong Shanghai Jiaotong UniversityDepartment of Materials Science;Shanghai Jiaotong University

XU Zuyao (T.Y. Hsu);CHEN Weizhong Shanghai Jiaotong UniversityDepartment of Materials Science;Shanghai Jiaotong University. EFFECT OF AUSTENITE STRENGTHENING ON MARTENSITIC AND BAINITIC TRANSFORMATIONS. Acta Metall Sin, 1988, 24(3): 155-160.

Abstract References Related Articles Recommended Metrics Download:  PDF(418KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Effect of austenite strengthening on M_s and B_s temperatures in Fe-Ni-C alloys and some commercial steels have been studied. M_s temperature lowers1inearly with the increase of the yield strength of the austenite, while B_s seems tobe independent of the austenite strengthening. By plotting B_s temperature of thethree Fe-Ni-C alloys versus D~γ(C) and D~γ(Fe), a linear relation is obtained. The△G_v and D~γ(Fe) of the alloys were calculated at the nose temperatures in TTT di-agrams, and the incubation periods are found to be directly proportional to thevalues deduced from Feder's equation for diffusional transformations, implying thatthe incubation period at the nose temperature of bainitic transformation is gov-erned by the change in free energy and the diffusion of iron atoms in austenite. Key words:  Austenite strengthening      martensite      bainite      transformations      Received:  18 March 1988      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1988/V24/I3/155 1 Hsu T Y(Xu Zuyao), Li Jian, Zen Zhengpeng. Metallography, 1986; 19: 305 2 徐祖耀,李箭,曾振鹏.金属学报,1986;22:A494 3 Ansell G S, Brofman P J, Nichol T J, Judd G. ICOMAT-79, Cambridge, Massachusetts, 1979: 350 4 Breinan B M, Ansell G S. Metall Trans, 1970; 1: 1513 5 Hsu T Y(Xu Zuyao). J Mater Sci, 1985; 20: 23 6 Chang Hongbing, Hsu T Y (Xu Zuyao). Acta Metall, 1986; 34: 325 7 Hsu T Y (Xu Zuyao), Mou Yiwen. Acta Metall, 1984; 32: 1469 8 Wells C, Mehl R F. Trans AIME, 1940; 140: 279 9 #12 10 Feder J, Russell K C, Lothe J, Pound G M. Adv Phys, 1966; 15: 111 11 徐祖耀.马氏体相变与马氏体,北京:科学出版社,1980:90--91 12 Romig A D Jr, Goldstein J I. 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