{"title":"Si对回火马氏体钢渗碳体形态及抗氢脆性能的影响","authors":"Sang-Gyu Kim, Byoungchul Hwang","doi":"10.1007/s12540-024-01826-2","DOIUrl":null,"url":null,"abstract":"<div><p>This study investigates the influence of Si on cementite morphology and hydrogen embrittlement behavior of tempered martensitic steels. Si promotes the formation of short rod-like and spherical cementite, while reducing the occurrence of film-like cementite. This morphological change decreases hydrogen trapping and enhances resistance to hydrogen embrittlement. Cracks tend to initiate at the tips of film-like cementite, which is more common in steels with lower Si content. Therefore, higher Si content reduces the likelihood of crack initiation and growth by minimizing the presence of film-like cementite. These findings indicate the importance of Si in altering cementite morphology and improving the resistance of tempered martensitic steels to hydrogen embrittlement.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 5","pages":"1313 - 1322"},"PeriodicalIF":3.3000,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Si on Cementite Morphology and Hydrogen Embrittlement Resistance of Tempered Martensitic Steels\",\"authors\":\"Sang-Gyu Kim, Byoungchul Hwang\",\"doi\":\"10.1007/s12540-024-01826-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study investigates the influence of Si on cementite morphology and hydrogen embrittlement behavior of tempered martensitic steels. Si promotes the formation of short rod-like and spherical cementite, while reducing the occurrence of film-like cementite. This morphological change decreases hydrogen trapping and enhances resistance to hydrogen embrittlement. Cracks tend to initiate at the tips of film-like cementite, which is more common in steels with lower Si content. Therefore, higher Si content reduces the likelihood of crack initiation and growth by minimizing the presence of film-like cementite. These findings indicate the importance of Si in altering cementite morphology and improving the resistance of tempered martensitic steels to hydrogen embrittlement.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":703,\"journal\":{\"name\":\"Metals and Materials International\",\"volume\":\"31 5\",\"pages\":\"1313 - 1322\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2024-11-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Metals and Materials International\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12540-024-01826-2\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metals and Materials International","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12540-024-01826-2","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Effect of Si on Cementite Morphology and Hydrogen Embrittlement Resistance of Tempered Martensitic Steels
This study investigates the influence of Si on cementite morphology and hydrogen embrittlement behavior of tempered martensitic steels. Si promotes the formation of short rod-like and spherical cementite, while reducing the occurrence of film-like cementite. This morphological change decreases hydrogen trapping and enhances resistance to hydrogen embrittlement. Cracks tend to initiate at the tips of film-like cementite, which is more common in steels with lower Si content. Therefore, higher Si content reduces the likelihood of crack initiation and growth by minimizing the presence of film-like cementite. These findings indicate the importance of Si in altering cementite morphology and improving the resistance of tempered martensitic steels to hydrogen embrittlement.
期刊介绍：
Metals and Materials International publishes original papers and occasional critical reviews on all aspects of research and technology in materials engineering: physical metallurgy, materials science, and processing of metals and other materials. Emphasis is placed on those aspects of the science of materials that are concerned with the relationships among the processing, structure and properties (mechanical, chemical, electrical, electrochemical, magnetic and optical) of materials. Aspects of processing include the melting, casting, and fabrication with the thermodynamics, kinetics and modeling.
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