A STUDY ON THE INITIAL CARBIDES FORMED DURING ISOTHERMAL DECOMPOSITION OF AUSTENITE IN CHROMIUM STEEL
Liu Qing Shanghai Jiaotong University
Cite this article:
Liu Qing Shanghai Jiaotong University. A STUDY ON THE INITIAL CARBIDES FORMED DURING ISOTHERMAL DECOMPOSITION OF AUSTENITE IN CHROMIUM STEEL. Acta Metall Sin, 1980, 16(3): 283-289.
Abstract Carbides formed initially during isothermal decomposition of austenite in sevenchromium steels have been studied by X-ray diffraction method. The relationshipsexisting between Cr/C ratio and types of initial carbides formed have been con-firmed and re-explained by a new concept. It was also found that the carbidesforming process is dependent on the decomposition temperature of austenite. Withdifferent Cr/C ratios and decomposition temperatures, the types of the initialcarbides formed are different. Transition regions possibly exist between any twoadjacent single phase regions in all diagrams.
[1] 张沛霖,梁志德,金属学报,2(1957) ,367． [2] Mehl, R. F., Hardenability of Alloy steels, ASM, 1938, p. 1． [3] Hultgren, A., Trans. ASM, 39 (1947) , 915． [4] #12 [5] #12 [6] #12 [7] Wever, P. and Koch, W., Stahl Eisen, 74 (1954) , 989． [8] #12 [9] #12 [10] #12 [11] Wever, F. and Koch, W., Arch Eisenhuettenw., 21 (1950) , 143． [12] Lyman, T. and Troiano, A. R., Trans. AIME, 162 (1945) , 196． [13] Crafts, W. and Lamont, J. L., Trans. AIME, 185 (1949) , 957． [14] Kuo, K. H. and Hultgren, A., Rev. Met. (Paris), 50 (1953) , 847． [15] #12~
