Jiang-kun FAN , Hong-ci YANG , Pei-zhe ZHANG , Jia-yu LI , Zhan-jie JING , Fu-long CHEN , De-gui LIU , Bin TANG , Hong-chao KOU , Jin-shan LI
{"title":"不同固溶和时效热处理工艺对Inconel 625高温合金高温氧化机理的影响","authors":"Jiang-kun FAN , Hong-ci YANG , Pei-zhe ZHANG , Jia-yu LI , Zhan-jie JING , Fu-long CHEN , De-gui LIU , Bin TANG , Hong-chao KOU , Jin-shan LI","doi":"10.1016/S1003-6326(24)66632-X","DOIUrl":null,"url":null,"abstract":"<div><div>The high-temperature oxidation behaviour of the Inconel 625 alloy at 950 °C was investigated after different ageing treatments. The effect of heat treatment on the oxidation behaviour of the alloy was analysed by characterizing the structure and elemental distribution before and after oxidation. The results reveal that the two ageing treatments at 650 °C for 500 h and at 750 °C for 400 h both reduced the oxidation mass gain. After oxidation at 950 °C, an outer Cr<sub>2</sub>O<sub>3</sub> layer and inner Al<sub>2</sub>O<sub>3</sub> are identified as the main oxidation products. Moreover, Nb<sub>2</sub>O<sub>5</sub> and <em>δ</em>(Ni<sub>3</sub>Nb) phases precipitated after oxidation. The ageing treatments cause the rapid generation of a dense Cr<sub>2</sub>O<sub>3</sub> layer on the surface, which prevents the diffusion of oxygen into the matrix, reduce the Al<sub>2</sub>O<sub>3</sub> inward growth depth, and improve the oxidation resistance of the alloy.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 11","pages":"Pages 3662-3676"},"PeriodicalIF":4.7000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Mechanism of high temperature oxidation of Inconel 625 superalloy with various solution and ageing heat treatment processes\",\"authors\":\"Jiang-kun FAN , Hong-ci YANG , Pei-zhe ZHANG , Jia-yu LI , Zhan-jie JING , Fu-long CHEN , De-gui LIU , Bin TANG , Hong-chao KOU , Jin-shan LI\",\"doi\":\"10.1016/S1003-6326(24)66632-X\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The high-temperature oxidation behaviour of the Inconel 625 alloy at 950 °C was investigated after different ageing treatments. The effect of heat treatment on the oxidation behaviour of the alloy was analysed by characterizing the structure and elemental distribution before and after oxidation. The results reveal that the two ageing treatments at 650 °C for 500 h and at 750 °C for 400 h both reduced the oxidation mass gain. After oxidation at 950 °C, an outer Cr<sub>2</sub>O<sub>3</sub> layer and inner Al<sub>2</sub>O<sub>3</sub> are identified as the main oxidation products. Moreover, Nb<sub>2</sub>O<sub>5</sub> and <em>δ</em>(Ni<sub>3</sub>Nb) phases precipitated after oxidation. The ageing treatments cause the rapid generation of a dense Cr<sub>2</sub>O<sub>3</sub> layer on the surface, which prevents the diffusion of oxygen into the matrix, reduce the Al<sub>2</sub>O<sub>3</sub> inward growth depth, and improve the oxidation resistance of the alloy.</div></div>\",\"PeriodicalId\":23191,\"journal\":{\"name\":\"Transactions of Nonferrous Metals Society of China\",\"volume\":\"34 11\",\"pages\":\"Pages 3662-3676\"},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2024-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Transactions of Nonferrous Metals Society of China\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S100363262466632X\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/12/13 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transactions of Nonferrous Metals Society of China","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S100363262466632X","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/12/13 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Mechanism of high temperature oxidation of Inconel 625 superalloy with various solution and ageing heat treatment processes
The high-temperature oxidation behaviour of the Inconel 625 alloy at 950 °C was investigated after different ageing treatments. The effect of heat treatment on the oxidation behaviour of the alloy was analysed by characterizing the structure and elemental distribution before and after oxidation. The results reveal that the two ageing treatments at 650 °C for 500 h and at 750 °C for 400 h both reduced the oxidation mass gain. After oxidation at 950 °C, an outer Cr2O3 layer and inner Al2O3 are identified as the main oxidation products. Moreover, Nb2O5 and δ(Ni3Nb) phases precipitated after oxidation. The ageing treatments cause the rapid generation of a dense Cr2O3 layer on the surface, which prevents the diffusion of oxygen into the matrix, reduce the Al2O3 inward growth depth, and improve the oxidation resistance of the alloy.
期刊介绍：
The Transactions of Nonferrous Metals Society of China (Trans. Nonferrous Met. Soc. China), founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, INSPEC, CA, METADEX, AJ and JICST.
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