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| Effect of Metallurgical Process on Morphology and Size Distribution of MnS Inclusions |
| XIA Zhixin1,YE Bing2,YANG Zhuoyue1,SU Jie1 |
| 1. Institute for Structure Materials， Central Iron and steel Research Institute, Beijing 100081, China； 2. Technique center, Pangang Group Sichuan Changcheng Special Steel Co., Ltd.， Jiangyou 621701， Sichuan, China |
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Abstract The morphology and size distribution of inclusions in G50 steel produced by different metallurgy processes were analyzed by SEM, EDAX. Results indicated that in the G50 produced by VIM+VAR the size of MnS inclusions was slightly smaller and their aspect ratio,mean spacing were distinctly larger.There were much more fine inclusions concentrated locally. Size distribution and morphology of MnS in G50 produced by VIM +VAR were dispersed evenly due to higher calcium content in composite MnS inclusions, leading to poor deformability.
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Received: 01 January 1900
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2008, Vol. 43 
