金属学报  1980, Vol. 16 Issue (3): 283-289

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铬钢中奥氏体等温分解的初生碳化物类型的研究

刘勤

上海交通大学

A STUDY ON THE INITIAL CARBIDES FORMED DURING ISOTHERMAL DECOMPOSITION OF AUSTENITE IN CHROMIUM STEEL

Liu Qing Shanghai Jiaotong University

刘勤. 铬钢中奥氏体等温分解的初生碳化物类型的研究[J]. 金属学报, 1980, 16(3): 283-289.
. A STUDY ON THE INITIAL CARBIDES FORMED DURING ISOTHERMAL DECOMPOSITION OF AUSTENITE IN CHROMIUM STEEL[J]. Acta Metall Sin, 1980, 16(3): 283-289.

摘要 参考文献 相关文章 Metrics 全文: PDF(550 KB)   摘要: 采用X射线衍射法对七种铬钢进行了研究.进一步证实了关于铬钢中奥氏体等温分解过程和Cr/C比值有关的结果.采用新的观点进行解释. 同时还发现上述过程也和奥氏体的分解温度(或过冷度)有关(图3).Cr/C比值低的奥氏体在图3中所示之全部温度范围内,初期都形成(Fe,Cr)_3C.并且能够大致地预测Cr/C比值高的奥氏体初期在高温范围内将形成(Cr,Fe)_(23)C_6,在中温范围内将形成(Cr,Fe)_7C_3,在低温范围内将形成(Fe,Cr)_3C.Cr/C比值适中的奥氏体初期在高温和中温范围内都形成(Cr,Fe)_7C_3,在低温范围内形成(Fe,Cr)_3C. 并且初步认为在所有的情况下,都存在从一相至另一相的由两相构成的过渡区. 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. 收稿日期: 1980-03-18      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 刘勤 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1980/V16/I3/283 [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~ No related articles found! Viewed Full text Abstract Cited   Shared      Discussed