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INFLUENCE OF AUSTENITE STRENGTHENING ON MARTENSITIC TRANSFORMATION IN Fe-Mn-C ALLOYS |
PAN Mu;XU Zuyao T. Y. Hsu Shanghai Jiao Tong University XU Zuyao; professor; Dept. of Materials Science; Shanghai Jiao Tong University;Huashan Road; Shanghai 200030 China |
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Cite this article:
PAN Mu;XU Zuyao T. Y. Hsu Shanghai Jiao Tong University XU Zuyao; professor; Dept. of Materials Science; Shanghai Jiao Tong University;Huashan Road; Shanghai 200030 China. INFLUENCE OF AUSTENITE STRENGTHENING ON MARTENSITIC TRANSFORMATION IN Fe-Mn-C ALLOYS. Acta Metall Sin, 1989, 25(6): 5-9.
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Abstract The M_5 temperature and the yield strength of austenite at M_5 tem-perature have been measured for five Fe-Mn-C alloys. The experimental results showthat there is a linear relationship between them. The effect of the solution strength-ening of austenite on martensite morphology is also studied. It is pointed outthat there is a characteristic temperature of strengthening in austenite, T_c. Marten-site morphology is mainly dislocated laths when M_5>T_c, and is mainly twinnedplates when M_5
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Received: 18 June 1989
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1 Nichol T J, Judd G, Ansell G S. Metall Trans, 1977; 8A: 1877 2 Hsu T Y (徐祖耀), Li Jian (李箭), Zeng Zhenpeng (曾振鹏), Metallography, 1986; 19: 305 3 Hsu T Y (徐祖耀), Chen Weichong (陈卫中). Scr Metall, 1987; 21: 1289 4 Thomas G. Metall Trans, 1971; 2A: 2373 S Kung C Y, Rayment J J. Metall Trans, 1982; 13A: 328 6 徐祖耀,金属学报,1979;15:329 7 Haasen P. In: Nabarro F R N ed, Dislocation in Solids, Vol. 4, Dislocations in Metallurgy, Amsterdan: North-Holland, 1979: 155 8 Huang D, Thomas G, Metall Trans, 1971; 2A: 1587 |
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