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| ON THE FRACTURE DELAMINATION OF HOT-ROLLED PLATES OR COILS |
| QI Lian; YIN Biqun; PU Shaokang (Research Institute of Wuhan Iron and Steel Company) |
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Cite this article:
QI Lian; YIN Biqun; PU Shaokang (Research Institute of Wuhan Iron and Steel Company). ON THE FRACTURE DELAMINATION OF HOT-ROLLED PLATES OR COILS. Acta Metall Sin, 1983, 19(1): 76-152.
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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(
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Received: 18 January 1983
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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． |
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