Jiang Ju , Yimeng Zhao , Zhao Shen , Kai Chen , Bo Xiao , Xia Li , Dongqing Qi , Yilu Zhao , Jun Wang , Baode Sun , Tao Yang
{"title":"通过高级表征深入了解 Fe71.5-x(Ni,Cr,Ti)28.5Alx 复合浓缩合金的氧化行为和优异的抗内部氧化和氮化性能","authors":"Jiang Ju , Yimeng Zhao , Zhao Shen , Kai Chen , Bo Xiao , Xia Li , Dongqing Qi , Yilu Zhao , Jun Wang , Baode Sun , Tao Yang","doi":"10.1016/j.corsci.2024.112544","DOIUrl":null,"url":null,"abstract":"<div><div>For precipitate-strengthened alloys, the decomposition of the precipitates at the subsurface during high-temperature oxidation is detrimental to mechanical properties. In this study, we adjusted Al concentrations in Fe<sub>71.5-x</sub>(Ni, Cr, Ti)<sub>28.5</sub>Al<sub>x</sub> (x = 8, 12, and 16 at%) complex concentrated alloys (CCAs) to precipitate elongated cuboidal L2<sub>1</sub> with higher density and Al concentration, as well as reduced inter-precipitate spacing. This is more conducive to the rapid diffusion of Al to the matrix and grain boundaries, promoting the formation of a continuous and compact Al<sub>2</sub>O<sub>3</sub> layer with random crystallographic orientation at 800 °C in air. This not only inhibits the further decomposition of the L2<sub>1</sub> phase but also avoids internal oxidation and nitridation.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"241 ","pages":"Article 112544"},"PeriodicalIF":7.4000,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Insight into the oxidation behavior and excellent internal oxidation and nitridation resistance of Fe71.5-x(Ni, Cr, Ti)28.5Alx complex concentrated alloys by advanced characterization\",\"authors\":\"Jiang Ju , Yimeng Zhao , Zhao Shen , Kai Chen , Bo Xiao , Xia Li , Dongqing Qi , Yilu Zhao , Jun Wang , Baode Sun , Tao Yang\",\"doi\":\"10.1016/j.corsci.2024.112544\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>For precipitate-strengthened alloys, the decomposition of the precipitates at the subsurface during high-temperature oxidation is detrimental to mechanical properties. In this study, we adjusted Al concentrations in Fe<sub>71.5-x</sub>(Ni, Cr, Ti)<sub>28.5</sub>Al<sub>x</sub> (x = 8, 12, and 16 at%) complex concentrated alloys (CCAs) to precipitate elongated cuboidal L2<sub>1</sub> with higher density and Al concentration, as well as reduced inter-precipitate spacing. This is more conducive to the rapid diffusion of Al to the matrix and grain boundaries, promoting the formation of a continuous and compact Al<sub>2</sub>O<sub>3</sub> layer with random crystallographic orientation at 800 °C in air. This not only inhibits the further decomposition of the L2<sub>1</sub> phase but also avoids internal oxidation and nitridation.</div></div>\",\"PeriodicalId\":290,\"journal\":{\"name\":\"Corrosion Science\",\"volume\":\"241 \",\"pages\":\"Article 112544\"},\"PeriodicalIF\":7.4000,\"publicationDate\":\"2024-10-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Corrosion Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0010938X2400739X\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Corrosion Science","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0010938X2400739X","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Insight into the oxidation behavior and excellent internal oxidation and nitridation resistance of Fe71.5-x(Ni, Cr, Ti)28.5Alx complex concentrated alloys by advanced characterization
For precipitate-strengthened alloys, the decomposition of the precipitates at the subsurface during high-temperature oxidation is detrimental to mechanical properties. In this study, we adjusted Al concentrations in Fe71.5-x(Ni, Cr, Ti)28.5Alx (x = 8, 12, and 16 at%) complex concentrated alloys (CCAs) to precipitate elongated cuboidal L21 with higher density and Al concentration, as well as reduced inter-precipitate spacing. This is more conducive to the rapid diffusion of Al to the matrix and grain boundaries, promoting the formation of a continuous and compact Al2O3 layer with random crystallographic orientation at 800 °C in air. This not only inhibits the further decomposition of the L21 phase but also avoids internal oxidation and nitridation.
期刊介绍：
Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies.
This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.
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