金属学报  1981, Vol. 17 Issue (5): 549-608

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30CrMnSiNi2A电渣钢锭纵向裂纹的研究

姜晋文;刘兴志;田继丰

本溪钢铁公司第一钢厂研究所;中国科学院金属研究所;中国科学院金属研究所

ON THE LONGITUDINAL CRACKS IN 30CrMnSiNi2A ELECTROSLAG INGOT

by Jiang Jinwen (Institute of № 1 Steel works; Benxi Iron and Steel Company); Liu Xingzhi and Tian Jifeng (Institute of Metal Research; Academia Sinica)

姜晋文;刘兴志;田继丰. 30CrMnSiNi2A电渣钢锭纵向裂纹的研究[J]. 金属学报, 1981, 17(5): 549-608.
, , . ON THE LONGITUDINAL CRACKS IN 30CrMnSiNi2A ELECTROSLAG INGOT[J]. Acta Metall Sin, 1981, 17(5): 549-608.

摘要 参考文献 相关文章 Metrics 全文: PDF(3140 KB)   摘要: 本文对30CrMnSiNi2A电渣钢锭纵向裂纹的产生原因及解决措施等有关问题进行了研究,并在工业生产中得到了验证。结果表明:纵向裂纹是由于C,P,S,Si等元素向原始奥氏体晶界富集,在较大的热应力作用下,沿着这种弱化了的晶界开裂而形成的。Al的有害作用并非是形成AlN,而是促进元素显微偏析,使晶界变脆。 为了确保30CrMnSiNi2A电渣钢锭不裂,在钢锭脱锭后的保温条件受到限制的情况下,控制钢中的残余Al含量是行之有效的措施之一。 Abstract：The cause and remedy of the longitudinal cracking in 30CrMnSiNi2A electroslag ingot have been investigated. Results showed that the cracks are initiated by the microsegregated C, P, S, Si, etc. along the primary austenite boundaries which become fragile and cracking under higher thermal stress. Al is injurious owing to promoting the microsegregation of elements and brittle fracture of grain boundaries rather than formation of the AlN. An effectual remedy for longitudinal cracks in 30CrMnSiNi2A electroslag ingot is to keep the residual amount of Al under control if the heat-retaining condition is restricted after stripping the ingot. 收稿日期: 1981-05-18      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 姜晋文 刘兴志 田继丰 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1981/V17/I5/549 [1] Desai, S. C., J. Iron Steel Inst., 191 (1959) , 250． [2] Biggs, B. L., J. Iron Steel Inst., 192 (1959) , 361． [3] Ericson, L., Scand. J. Metall., 6 (1977) , 116． [4] Irvine, K. J. and Pickering, F. B., Iron Steel, 30 (1957) , 219． [5] #12 [6] #12 [7] Kajioka, H., Yamaguchi, K., Sato, N., Soejima, K. and Sakaguchi, S., Proc. of the Fourth Int. Symp. on Electroslag Remelting Processes, Tokyo, ISIJ, 1973． [8] 氏家信久,日本金属学会会报,5(1966) ,№ 1,17． [9] Erasmus, L. A., J. Iron Steel Inst. 202 (1964) , 32． [10] Woodfine, B. C. and Quarrell, A. G., J. Iron Steel Inst., 195 (1960) , 409． [11] Pokorny, A. J., De Ferri Metallographia Ⅲ, Berger-Levrant, 1967, p. 47． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed