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Effect of Cu on Surface Microcrack of Austenitic Stainless Cold Rolled Coil
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作者 Ji-xiang PAN Guo-yu QIAN +4 位作者 Guo-guang CHENG Yan LI Wei PAN Zi-bing HOU Chao CHEN 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2014年第S1期56-60,共5页
In order to find out the cause of surface microcrack on 304 austenitic stainless cold rolled coils which is produced in a steel plant of China, lots of studies have been carried out. The results indicated that the cop... In order to find out the cause of surface microcrack on 304 austenitic stainless cold rolled coils which is produced in a steel plant of China, lots of studies have been carried out. The results indicated that the copper guide of steekle mill used in hot rolling process contacts directly with the hot rolled coil, so parts of copper melt and glued to the surface of the stainless steel plates due to a higher temperature of stainless steel plates than the copper melting temperature, which leads to deterioration of austenitic grain boundaries. Shear stress produced in the process of repeatrolling on finishing mill induces the surface microcracks and promotes it. After changing the copper guide to the cast steel one, such kinds of surface microcracks have never appeared. 展开更多
关键词 steekle mill austenitic stainless steel surface microcrack copper guide
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