金属学报  1983, Vol. 19 Issue (1): 76-152

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热轧板(卷)断口分层的研究

戚濂;殷碧群;浦绍康

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

ON THE FRACTURE DELAMINATION OF HOT-ROLLED PLATES OR COILS

QI Lian; YIN Biqun; PU Shaokang (Research Institute of Wuhan Iron and Steel Company)

戚濂;殷碧群;浦绍康. 热轧板(卷)断口分层的研究[J]. 金属学报, 1983, 19(1): 76-152.
, , . ON THE FRACTURE DELAMINATION OF HOT-ROLLED PLATES OR COILS[J]. Acta Metall Sin, 1983, 19(1): 76-152.

摘要 参考文献 相关文章 Metrics 全文: PDF(2816 KB)   摘要: 本文研究了热轧板(卷)断口分层形成的冶金因素。钢中存在与轧面平行的脆弱显微平面(延伸的夹杂物和树枝状偏析等)是产生分层的内在因素,当它们在断裂面下严重偏聚时,在断裂过程中厚向应力的作用下引起厚向分离,形成断口分层。沿晶脆化带的形成是由于卷曲后缓慢冷却过程中,磷等杂质元素从晶内向晶界扩散产生的回火脆性。低温轧制(低于A_(r3))产生平行板面的(100)织构时,分层裂纹以解理方式扩展。 形成分层的必要条件是金属基体具有足够高的韧性,使试样在断裂过程中发生塑性变形。控制能量冲击试验结果和分层壁上脆性平面存在波纹状滑移线,说明分层裂缝产生于主断口断裂之前。 Abstract：The metallurgical factors influenced the hot-rolled plates or coils on to form the fracture delamination have been investigated. The fragile micro-planes, including stretched inclusions, dendritic segregations, etc., which occur in steel and parallel to the rolling direction, seem to be the inherent factor. As the segregation of these micro-planes accumulated beneath the fracture surface, such delamination is formed under through thicknessstress in the propagation of fracture. The intergranular embrittlement zone is due to the temper brittleness produced by phosphorus and other impurities which diffused from intragrain to grain boundary in the slow cooling period after coiling. Delamination cracks propagate as mode of cleavage when (100) texture parallel to plate surface obtained by low temperature( 收稿日期: 1983-01-18      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 殷碧群 浦绍康 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1983/V19/I1/76 1 Makio, I.; Hiroshi, M.; Nobuchika, N., Trans. Iron Steel Inst. Jpn., 17(1977) , 450． 2 Hawkins, D. N., Met. Technol., 3(1976) , 417． 3 福田実;国重和俊;杉沢精一,铁钢,64(1978) ,740． 4 戚濂;浦绍康;殷碧群;贺桂英,未发表资料,1980． 5 #12 6 冶金工业部钢铁研究总院编,合金钢断口分析金相图谱,科学出版社,1979,p.64． 7 Baker, T. J.; Charles, J. A.; J. Iron Steel Inst., 210(1972) , 680． 8 北京钢铁学院金物教研组,金属学报,10(1974) ,27． 9 Baker, T. J.; Charles, J. A., J. Iron Steel Inst., 211(1973) , 187． 10 Luyckx, L.; Bell, J. R.; McLean, A.; Korchynsky, M., Metall. Trans., 1(1970) , 3341． 11 Roborts, W., Scand. J. Metall., 9(1980) , 13． 12 Takechi, H.; Kato, H.; Nagashima, S., Trans. Metall. Soc. AIME, 242(1968) , 56． 13 寺崎富久长;三好荣次;福田実;金子辉雄,铁钢,60(1974) ,219． 14 张信钰编,金属和合金的织构,科学出版社,1976,p.18． 15 戢景文;李茂华;肖连芳;高怀荪,金属学报.17(1981) ,293． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed