Jagadeesh Neduri, Gajanan P. Chaudhari, Sai Ramudu Meka
{"title":"结合应用机械变形和氮化处理,实现 316 不锈钢的最佳机械性能和防腐性能","authors":"Jagadeesh Neduri, Gajanan P. Chaudhari, Sai Ramudu Meka","doi":"10.1007/s11837-024-06874-y","DOIUrl":null,"url":null,"abstract":"<div><p>Thermo-mechanical and thermochemical surface treatments are well-established methods for optimizing the properties of metallic materials. This study examines the effect of cryo-rolling-induced martensite in 316 stainless steel on its corrosion characteristics and the way these characteristics alter after low-temperature nitriding. 316 stainless steel specimens were cryo-rolled to realize varying dislocation densities and martensite fractions followed by salt bath nitriding at 425°C for 4 h. Detailed microstructural and electrochemical characterizations were performed after different stages. Increased martensite content resulted in a thicker nitrided layer, and the martensite diffraction peaks were extensively broadened with relatively less shift towards lower diffraction angles. Subsequent nitriding led to a much higher hardness increase for martensite phase compared to austenite phase. Electrochemical measurements showed that martensite development reduced the corrosion resistance; however, the following nitriding treatment enhanced the corrosion resistance. The distinct electrochemical properties observed were related to the presence of dislocations and binding characteristics of N with dislocations and substitutional elements of austenite and martensite phases. Successive application of cryo-rolling and nitriding can offer optimal combination of mechanical and electrochemical properties.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"76 12","pages":"7146 - 7156"},"PeriodicalIF":2.1000,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Combined Application of Mechanical Deformation and Nitriding to Realize Optimal Mechanical and Anticorrosion Properties for 316 Stainless Steel\",\"authors\":\"Jagadeesh Neduri, Gajanan P. Chaudhari, Sai Ramudu Meka\",\"doi\":\"10.1007/s11837-024-06874-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Thermo-mechanical and thermochemical surface treatments are well-established methods for optimizing the properties of metallic materials. This study examines the effect of cryo-rolling-induced martensite in 316 stainless steel on its corrosion characteristics and the way these characteristics alter after low-temperature nitriding. 316 stainless steel specimens were cryo-rolled to realize varying dislocation densities and martensite fractions followed by salt bath nitriding at 425°C for 4 h. Detailed microstructural and electrochemical characterizations were performed after different stages. Increased martensite content resulted in a thicker nitrided layer, and the martensite diffraction peaks were extensively broadened with relatively less shift towards lower diffraction angles. Subsequent nitriding led to a much higher hardness increase for martensite phase compared to austenite phase. Electrochemical measurements showed that martensite development reduced the corrosion resistance; however, the following nitriding treatment enhanced the corrosion resistance. The distinct electrochemical properties observed were related to the presence of dislocations and binding characteristics of N with dislocations and substitutional elements of austenite and martensite phases. Successive application of cryo-rolling and nitriding can offer optimal combination of mechanical and electrochemical properties.</p></div>\",\"PeriodicalId\":605,\"journal\":{\"name\":\"JOM\",\"volume\":\"76 12\",\"pages\":\"7146 - 7156\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-09-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JOM\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11837-024-06874-y\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"JOM","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11837-024-06874-y","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Combined Application of Mechanical Deformation and Nitriding to Realize Optimal Mechanical and Anticorrosion Properties for 316 Stainless Steel
Thermo-mechanical and thermochemical surface treatments are well-established methods for optimizing the properties of metallic materials. This study examines the effect of cryo-rolling-induced martensite in 316 stainless steel on its corrosion characteristics and the way these characteristics alter after low-temperature nitriding. 316 stainless steel specimens were cryo-rolled to realize varying dislocation densities and martensite fractions followed by salt bath nitriding at 425°C for 4 h. Detailed microstructural and electrochemical characterizations were performed after different stages. Increased martensite content resulted in a thicker nitrided layer, and the martensite diffraction peaks were extensively broadened with relatively less shift towards lower diffraction angles. Subsequent nitriding led to a much higher hardness increase for martensite phase compared to austenite phase. Electrochemical measurements showed that martensite development reduced the corrosion resistance; however, the following nitriding treatment enhanced the corrosion resistance. The distinct electrochemical properties observed were related to the presence of dislocations and binding characteristics of N with dislocations and substitutional elements of austenite and martensite phases. Successive application of cryo-rolling and nitriding can offer optimal combination of mechanical and electrochemical properties.
期刊介绍:
JOM is a technical journal devoted to exploring the many aspects of materials science and engineering. JOM reports scholarly work that explores the state-of-the-art processing, fabrication, design, and application of metals, ceramics, plastics, composites, and other materials. In pursuing this goal, JOM strives to balance the interests of the laboratory and the marketplace by reporting academic, industrial, and government-sponsored work from around the world.