金属学报  1987, Vol. 23 Issue (5): 369-373

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5Cr2NiMoVSi大截面热作模具钢的组织及回火脆化

胡翔;林颜盛;黄正安;冯干江;许玉贤

华中工学院;华中工学院;华中工学院;华中工学院;华中工学院

STRUCTURE AND TEMPER EMBRITTLEMENT OF LARGE SECTION 5Cr2NiMoVSi HOT-WORK DIE

by HU Xiang; LIN Yansheng; HUANG Zheng'an; .FENG Ganjfang; XU Yuxian (Huazhong University of Science and Technology; Wuhan)(Manuscript received 16 March; 1985; revised manuscript 17 July; 1985)

胡翔;林颜盛;黄正安;冯干江;许玉贤. 5Cr2NiMoVSi大截面热作模具钢的组织及回火脆化[J]. 金属学报, 1987, 23(5): 369-373.
, , , , . STRUCTURE AND TEMPER EMBRITTLEMENT OF LARGE SECTION 5Cr2NiMoVSi HOT-WORK DIE[J]. Acta Metall Sin, 1987, 23(5): 369-373.

摘要 参考文献 相关文章 Metrics 全文: PDF(1156 KB)   摘要: 对5Cr2NiMoVSi钢进行常规油淬和模拟300×300mm截面模具油淬时心部的冷速进行淬火处理,利用透射电镜等手段分析了它们的淬、回火组织.结果表明,淬态下,常规处理试样以板条马氏体为主;模拟处理试样主要是B_I型贝氏体.后者与低碳低合金钢中的B_I型贝氏体不一样,表现出较高的回火稳定性.在高温回火后,大量残余奥氏体转变,生成粗大链状分布的M_3C,是大截面模具回火脆化的主要原因. Abstract：To investigate the structure of quenched and tempered large section die, the cooling rate simulating that of central part for 300×300mm section has been used during quenching. As a comparision, ordinary quenching process has also been carried out. TEM observation shows that the structure of the latter is mainly lath martensite, and that of the former is B_I -bainite, which possesses higher temper stability than those found in low carbon low alloy steels. Transforming of great quantity of retain austenite and creating of chain-like distributed M_3C are considered as the main reason of the embrittement for the large section dies. 收稿日期: 1987-05-18      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 胡翔 林颜盛 黄正安 冯干江 许玉贤 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1987/V23/I5/369 1 范雄主编.X射线金属学,机械工业出版社,1981 2 Bhadeshia H K D H, Edmonds D V. Metall Trans, 1979; 10A: 895 3 Huang Der-Hung, Thomas G. Metall Trans, 1977; 8A: 1661 4 大森靖也,大谷泰夫,邦武立郎.铁钢,1971;57:1690 5 #1 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed