Inclusion and its deformation behavior in 304 stainless steel |
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Affiliation: | 1. Baosteel Stainless Steel Co., Ltd., Shanghai 200431, China;2. Research Institute, Baoshan Iron & Steel Co., Ltd., Shanghai 201900, China |
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Abstract: | Non-metallic inclusion is the main reason for the presence of surface defects in cold-rolled steel strip. In this study,the composition,morphology,and size of the non-metallic inclusion in hot-rolled 304 stainless steel strips are analyzed. Cold-rolled 304 stainless steel strips with different cold-rolling reduction have been prepared,and the morphology and size of inclusion in these cold-rolled strips are also analyzed. Furthermore,the deformation behavior of a non-metallic inclusion during the cold-rolling process is studied. The results showthat Ca O-SiO2-MgO-Al2O3,a kind of brittle compound oxide,is the main type of inclusion in hot-rolled 304 stainless steel strips.During the cold-rolling process,ductile deformation of this type of inclusion is not obvious,where large inclusions are crushed,and the average size of inclusions in cold-rolled strips decreased while the cold-rolling reduction increased. |
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Keywords: | stainless steel cold-rolled steel strip inclusion deformation behavior |
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