Hao Li , Yan-chong Yu , Xiang Ren , Shao-hua Zhang , She-bin Wang
{"title":"低碳高锰钢中铈处理Al2O3夹杂物的演变","authors":"Hao Li , Yan-chong Yu , Xiang Ren , Shao-hua Zhang , She-bin Wang","doi":"10.1016/S1006-706X(17)30135-8","DOIUrl":null,"url":null,"abstract":"<div><p>The influence of cerium (Ce) treatment on the morphologies, size and distributions of Al<sub>2</sub>O<sub>3</sub> inclusions in low carbon high manganese steel was investigated by OM, SEM-EDS and theoretical calculation. The results showed that Ce can modify the morphologies and types of Al<sub>2</sub>O<sub>3</sub> inclusions. After Ce treatment, the irregular Al<sub>2</sub>O<sub>3</sub> inclusions were replaced by smaller and dispersive spherical cerium oxysulfides. The effects of treatment time and Ce content on the evolution of Al<sub>2</sub>O<sub>3</sub> inclusions were examined. It indicated that Al<sub>2</sub>O<sub>3</sub> inclusions were wrapped by rare earth inclusions to form a ring like shape Ce-enriched band around the inclusions. Model was established to elucidate the evolution mechanism of Al<sub>2</sub>O<sub>3</sub> inclusions. Evolution kinetics of inclusions was discussed qualitatively to analyze the velocity controlled step. It was found that diffusion of Ce<sup>3+</sup> and Al<sup>3+</sup> in solid inclusion core and the formed intermediate layer would be the limited step during the evolution process.</p></div>","PeriodicalId":64470,"journal":{"name":"Journal of Iron and Steel Research(International)","volume":null,"pages":null},"PeriodicalIF":3.1000,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30135-8","citationCount":"41","resultStr":"{\"title\":\"Evolution of Al2O3 inclusions by cerium treatment in low carbon high manganese steel\",\"authors\":\"Hao Li , Yan-chong Yu , Xiang Ren , Shao-hua Zhang , She-bin Wang\",\"doi\":\"10.1016/S1006-706X(17)30135-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The influence of cerium (Ce) treatment on the morphologies, size and distributions of Al<sub>2</sub>O<sub>3</sub> inclusions in low carbon high manganese steel was investigated by OM, SEM-EDS and theoretical calculation. The results showed that Ce can modify the morphologies and types of Al<sub>2</sub>O<sub>3</sub> inclusions. After Ce treatment, the irregular Al<sub>2</sub>O<sub>3</sub> inclusions were replaced by smaller and dispersive spherical cerium oxysulfides. The effects of treatment time and Ce content on the evolution of Al<sub>2</sub>O<sub>3</sub> inclusions were examined. It indicated that Al<sub>2</sub>O<sub>3</sub> inclusions were wrapped by rare earth inclusions to form a ring like shape Ce-enriched band around the inclusions. Model was established to elucidate the evolution mechanism of Al<sub>2</sub>O<sub>3</sub> inclusions. Evolution kinetics of inclusions was discussed qualitatively to analyze the velocity controlled step. It was found that diffusion of Ce<sup>3+</sup> and Al<sup>3+</sup> in solid inclusion core and the formed intermediate layer would be the limited step during the evolution process.</p></div>\",\"PeriodicalId\":64470,\"journal\":{\"name\":\"Journal of Iron and Steel Research(International)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.1000,\"publicationDate\":\"2017-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30135-8\",\"citationCount\":\"41\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Iron and Steel Research(International)\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1006706X17301358\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Iron and Steel Research(International)","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1006706X17301358","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Evolution of Al2O3 inclusions by cerium treatment in low carbon high manganese steel
The influence of cerium (Ce) treatment on the morphologies, size and distributions of Al2O3 inclusions in low carbon high manganese steel was investigated by OM, SEM-EDS and theoretical calculation. The results showed that Ce can modify the morphologies and types of Al2O3 inclusions. After Ce treatment, the irregular Al2O3 inclusions were replaced by smaller and dispersive spherical cerium oxysulfides. The effects of treatment time and Ce content on the evolution of Al2O3 inclusions were examined. It indicated that Al2O3 inclusions were wrapped by rare earth inclusions to form a ring like shape Ce-enriched band around the inclusions. Model was established to elucidate the evolution mechanism of Al2O3 inclusions. Evolution kinetics of inclusions was discussed qualitatively to analyze the velocity controlled step. It was found that diffusion of Ce3+ and Al3+ in solid inclusion core and the formed intermediate layer would be the limited step during the evolution process.
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