【摘 要】
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The shape, type, content, and dimension of nonmetallic inclusions in SUS304 strip produced by twin-roll strip casting were studied using scanning electron micro
【机 构】
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Metallurgical and Ecological Engineering School,Advanced Technology Institute of Technology Center
论文部分内容阅读
The shape, type, content, and dimension of nonmetallic inclusions in SUS304 strip produced by twin-roll strip casting were studied using scanning electron microscopy (SEM). The results show that the inclusions are mainly spherical Al2O3 and com- plex oxides composed of MnO, Al2O3., and SiO2. The percentage of fine oxides smaller than 3 μm reaches up to 51.8%. The theoreti- cal calculations show that fine oxides have precipitated during solidification. Therefore, it is concluded that during twin-roll strip casting, because of high cooling rate, the size of inclusions precipitated during solidification decreases, and the amount increases.
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