金属学报  1978, Vol. 14 Issue (2): 165-241

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45钢连铸坯和轧材低倍试片上内部裂纹的研究

金属研究所、大连钢厂联合研究组

AN INVESTIGATION OF INTERNAL CRACKS IN THE CONTINUOUS CASTING BILLETS AND ROLLING PRODUCTS OF A 0.45％ C STEEL

Joint Res. Gp.; Institute of Metal Research and Dalian Steel Works

金属研究所、大连钢厂联合研究组. 45钢连铸坯和轧材低倍试片上内部裂纹的研究[J]. 金属学报, 1978, 14(2): 165-241.
. AN INVESTIGATION OF INTERNAL CRACKS IN THE CONTINUOUS CASTING BILLETS AND ROLLING PRODUCTS OF A 0.45％ C STEEL[J]. Acta Metall Sin, 1978, 14(2): 165-241.

摘要 参考文献 相关文章 Metrics 全文: PDF(8841 KB)   摘要: 在工艺条件不适当时,45钢连铸坯在高温下会产生内部裂纹,当压延比近于4时,裂纹即可焊合。而富集在裂纹上的夹杂物和偏析元素,则被变形并沿轧制方向分散。当这种分散程度不太大时,酸洗后会在那里腐蚀出和裂纹形状相似的沟槽。这种缺陷对纵向力学性能没有影响,但使横向的塑性下降。 Abstract：In certain conditions, hot cracks eccurred in continuous casting billets of a 0.45% C steel. It was observed that such cracks were practically healed by rolling when the reduction ratio attained about four. Inclusion clusters and segregation of phosphorous in the neighbourhood of the above cracks as elongated streaks were often present and aligned with the rolling direction. In view of these, dark etching lines resembling cracks could occur on deep macro-etching. This sort of inhomogeneity hardly affected the longitudinal mechanical properties of therolling products, although the transverse ductility was appreciably lowered. 收稿日期: 1978-02-18      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 金属研究所、大连钢厂联合研究组 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1978/V14/I2/165 [1] Drunen, G. Van et al., Ironmaking Steelmaking, 2 (1975) , 125． [2] Baker, T. J. and Charles, J. A., J. Iron Steel Inst., 210 (1972) , 702． [3] Lankford, W. J., Met. Trans., 3 (1972) , 1331． [4] Adams, C. J., Open Hearth Proc., 54 (1971) , 290． [5] Miller, C. I., ibid, 54 (1971) , 316． [6] Baumann, H. G. et al., Baender, Bleche, Rotate, 12 (1971) , № 6, 239． [7] Mills, N. T. and Joseph, R. W., Ironmaking Steelmaking, 4 (1977) , 181． [8] “晶间裂纹”三结合研究组,金属学报,10(1974) ,p.41． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed