{"title":"纳米晶Fe-Cr合金中Cr偏析增强抗氢脆性能","authors":"Linshuo Dong, Feiyang Wang, Hong-Hui Wu, Mengjie Gao, Penghui Bai, Shuize Wang, Guilin Wu, Junheng Gao, Xiaoye Zhou, Xinping Mao","doi":"10.1007/s40195-023-01603-x","DOIUrl":null,"url":null,"abstract":"<div><p>Hydrogen is a clean fuel with numerous sources, yet the hydrogen industry is plagued by hydrogen embrittlement (HE) issues during the storage, transportation, and usage of hydrogen gas. HE can compromise material performance during service, leading to significant safety hazards and economic losses. In the current work, the influence of element Cr on the HE resistance of nanocrystalline Fe–Cr alloys under different hydrogen concentrations and strain rates was evaluated. With hybrid Monte Carlo (MC) and molecular dynamics (MD) simulations, it was found that Cr atoms were segregated at grain boundaries (GB) and inhibited the GB decohesion. Correspondingly, Cr segregation improved the strength and plasticity of the nanocrystalline Fe–Cr alloys, especially the HE resistance. Moreover, the Cr segregation reduced the diffusion coefficient of hydrogen and inhibited hydrogen-induced cracking. This work provided new insight into the development of iron-based alloys with high HE resistance in the future.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.9000,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhanced Hydrogen Embrittlement Resistance via Cr Segregation in Nanocrystalline Fe–Cr Alloys\",\"authors\":\"Linshuo Dong, Feiyang Wang, Hong-Hui Wu, Mengjie Gao, Penghui Bai, Shuize Wang, Guilin Wu, Junheng Gao, Xiaoye Zhou, Xinping Mao\",\"doi\":\"10.1007/s40195-023-01603-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Hydrogen is a clean fuel with numerous sources, yet the hydrogen industry is plagued by hydrogen embrittlement (HE) issues during the storage, transportation, and usage of hydrogen gas. HE can compromise material performance during service, leading to significant safety hazards and economic losses. In the current work, the influence of element Cr on the HE resistance of nanocrystalline Fe–Cr alloys under different hydrogen concentrations and strain rates was evaluated. With hybrid Monte Carlo (MC) and molecular dynamics (MD) simulations, it was found that Cr atoms were segregated at grain boundaries (GB) and inhibited the GB decohesion. Correspondingly, Cr segregation improved the strength and plasticity of the nanocrystalline Fe–Cr alloys, especially the HE resistance. Moreover, the Cr segregation reduced the diffusion coefficient of hydrogen and inhibited hydrogen-induced cracking. This work provided new insight into the development of iron-based alloys with high HE resistance in the future.</p></div>\",\"PeriodicalId\":457,\"journal\":{\"name\":\"Acta Metallurgica Sinica-English Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.9000,\"publicationDate\":\"2023-09-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta Metallurgica Sinica-English Letters\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s40195-023-01603-x\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Metallurgica Sinica-English Letters","FirstCategoryId":"1087","ListUrlMain":"https://link.springer.com/article/10.1007/s40195-023-01603-x","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Enhanced Hydrogen Embrittlement Resistance via Cr Segregation in Nanocrystalline Fe–Cr Alloys
Hydrogen is a clean fuel with numerous sources, yet the hydrogen industry is plagued by hydrogen embrittlement (HE) issues during the storage, transportation, and usage of hydrogen gas. HE can compromise material performance during service, leading to significant safety hazards and economic losses. In the current work, the influence of element Cr on the HE resistance of nanocrystalline Fe–Cr alloys under different hydrogen concentrations and strain rates was evaluated. With hybrid Monte Carlo (MC) and molecular dynamics (MD) simulations, it was found that Cr atoms were segregated at grain boundaries (GB) and inhibited the GB decohesion. Correspondingly, Cr segregation improved the strength and plasticity of the nanocrystalline Fe–Cr alloys, especially the HE resistance. Moreover, the Cr segregation reduced the diffusion coefficient of hydrogen and inhibited hydrogen-induced cracking. This work provided new insight into the development of iron-based alloys with high HE resistance in the future.
期刊介绍：
This international journal presents compact reports of significant, original and timely research reflecting progress in metallurgy, materials science and engineering, including materials physics, physical metallurgy, and process metallurgy.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
