{"title":"Characterization of the three-dimensional morphology of MnS precipitate in Ca-treated resulphurized free-cutting steel via fracture surface analysis","authors":"Xiaoliang Gao, Hong-Yao Wei, Q. Ren, Lifeng Zhang","doi":"10.1080/03019233.2023.2222255","DOIUrl":null,"url":null,"abstract":"ABSTRACT MnS precipitates in resulfurized free-cutting steels are elongated in the rolling direction and then have a large size in length. It is difficult to accurately obtain the characteristics especially full length of MnS by two-dimensional observation. Three-dimensional morphology of MnS in a Ca-treated resulfurized free-cutting steel was investigated by using tensile method and scanning electron microscopy. Compared with the statistical results of MnS in two-dimension, the size in three-dimension was larger. In two-dimension image, the length of MnS was in the range of ~100 μm, and the percent of MnS with size in the rage of 50~100 μm was about 1.15%. In three-dimension image, however, the length of MnS observed was in the range of ~325 μm, and the percent of MnS with size larger than 100 μm was about 5.73%. The results provide an insight into the role of fracture surface analysis in MnS characterization in resulfurized free-cutting steels.","PeriodicalId":14753,"journal":{"name":"Ironmaking & Steelmaking","volume":"50 1","pages":"1401 - 1409"},"PeriodicalIF":1.7000,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ironmaking & Steelmaking","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/03019233.2023.2222255","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract
ABSTRACT MnS precipitates in resulfurized free-cutting steels are elongated in the rolling direction and then have a large size in length. It is difficult to accurately obtain the characteristics especially full length of MnS by two-dimensional observation. Three-dimensional morphology of MnS in a Ca-treated resulfurized free-cutting steel was investigated by using tensile method and scanning electron microscopy. Compared with the statistical results of MnS in two-dimension, the size in three-dimension was larger. In two-dimension image, the length of MnS was in the range of ~100 μm, and the percent of MnS with size in the rage of 50~100 μm was about 1.15%. In three-dimension image, however, the length of MnS observed was in the range of ~325 μm, and the percent of MnS with size larger than 100 μm was about 5.73%. The results provide an insight into the role of fracture surface analysis in MnS characterization in resulfurized free-cutting steels.
期刊介绍：
Ironmaking & Steelmaking: Processes, Products and Applications monitors international technological advances in the industry with a strong element of engineering and product related material. First class refereed papers from the international iron and steel community cover all stages of the process, from ironmaking and its attendant technologies, through casting and steelmaking, to rolling, forming and delivery of the product, including monitoring, quality assurance and environmental issues. The journal also carries research profiles, features on technological and industry developments and expert reviews on major conferences.
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