Abstract：The morphology of the short-line peeling defects on the surface of 304 stainless steel cold rolled sheet was observed using optical microscope and scanning electron microscope, the point analysis and surface distribution of local component were also detected using energy diffraction spectrometer. The results show that the microscopic morphology of short-line peeling defect on surface of 304 stainless steel cold rolled pickled sheet looks like a type of "groove", the bonding site of groove and normal surface appears layered step structure, and there is iron and chromium oxide film at the edge of the groove. According to experimental results and associated analysis, the short-line peeling defects are mainly due to the local high ferrite content caused by the segregation of Cr in triangle region of the slab. Then microcracks and local oxidation occur during hot rolling process. The oxide film deforms during cold rolling, and then the substrate covered on the oxide film peels off after pickling.
收稿日期: 2014-03-28
出版日期: 2015-02-10
引用本文:
李岩，李聚宝，王建泽. 304不锈钢冷轧板表面短线状剥落缺陷分析[J]. 中国钢铁期刊网, 2015, 34(1): 57-60.
LI Yan,LI Ju-bao,WANG Jian-ze. Morphology analysis of short-line peeling defect on surface of 304 stainless steel cold-rolled sheet. Chinese Journal of Iron and Steel, 2015, 34(1): 57-60.
2015, Vol. 34 
