金属学报  1980, Vol. 16 Issue (3): 331-377

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硅钢热轧卷焊接接头断裂因素的研究

戚濂;浦绍康;殷碧群

武汉钢铁公司钢铁研究所;武汉钢铁公司钢铁研究所;武汉钢铁公司钢铁研究所

SOME FACTORS AFFECTING THE WELDED JOINT FRACTURE IN HOT-ROLLED SILICON STEEL COIL

Qi Lian;Pu Shaokang;Yin Biqun Research Institute of Wuhan Iron and Steel Company

戚濂;浦绍康;殷碧群. 硅钢热轧卷焊接接头断裂因素的研究[J]. 金属学报, 1980, 16(3): 331-377.
, , . SOME FACTORS AFFECTING THE WELDED JOINT FRACTURE IN HOT-ROLLED SILICON STEEL COIL[J]. Acta Metall Sin, 1980, 16(3): 331-377.

摘要 参考文献 相关文章 Metrics 全文: PDF(2054 KB)   摘要: 用光学显微镜、透射和扫描电镜观察以及X射线应力仪分析取向硅钢热轧卷焊接接头焊态与热处理后冷弯塑性和显微组织的关系,探索了影响接头脆断的因素和裂纹的起源,并根据对断口附近大量形变孪晶的观察,分析了它对断裂过程的影响.焊态下熔合线和过热区产生的马氏体、碳化物以及过热区晶粒粗大是造成接头断裂的主要因素.形变时过热区形成的大量形变孪晶的交截和孪晶对相界的撞击也导致了裂纹的萌生,加速了焊接接头的脆性断裂. Abstract：An investigation of the relationships between cold bending plasticity and micro-structures of welded joints in hot-rolled silicon steel coil in welded and heat-treatedconditions has been carried out by optical microscopy, TEM, SEM, and stressanalysis. It is shown that the martensite and carbide formed in weld junctionsand overheated zones as well as the coarse grains in the overheated zones are themain factors responsible for the welded joint fracture. The intersection of numerousdeforming twins in the overheated zones during deformation and their impactagainst phase boundaries also leads to an initiation of cracks. thus promoting thebrittle fracture of the welded joints. 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 戚濂 浦绍康 殷碧群 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1980/V16/I3/331 [1] Hull, D., Acta Met., 9 (1961) , 191． [2] Gell, M. and Worthington, P. J., Acta Met., 14 (1966) , 1265． [3] Worthington, P. J. and Smith, E., Acta Met., 14 (1966) , 35． [4] Anderson, E. and Spreadborough, J., J. Iron Steel Inst., 206 (1968) , 1223． [5] Leslie, W. C., Fischer, R. M. and Sen, N., Acta Met., 7 (1959) , 632． [6] Leslie, W. C., Rickett, R. L., Stroble, C. P. and Konoval, G., Trans. ASM, 53 (1961) , 715． [7] Konoval, G., Zwell, L., Dorman, L. A. and Leslie, W. C., Nature, 184 (1959) , 1863． [8] McMahon, C. J. Jr. and Cohen, M., Acta Met., 13 (1965) , 591． [9] Aronsson, B. and Granas, L., Met. Trans., 2 (1971) , 1087． [10] McMahon, C. J. Jr., Acta Met., 14 (1966) , 839． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed