揭示镍基单晶合金在nacl气溶胶大气中的反常温度依赖腐蚀行为

IF 14.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Materials Science & Technology Pub Date : 2025-10-11 DOI:10.1016/j.jmst.2025.09.046

Tiancheng Cui, Shujiang Geng, Xiying Niu, Minghui Chen, Fuhui Wang

{"title":"揭示镍基单晶合金在nacl气溶胶大气中的反常温度依赖腐蚀行为","authors":"Tiancheng Cui, Shujiang Geng, Xiying Niu, Minghui Chen, Fuhui Wang","doi":"10.1016/j.jmst.2025.09.046","DOIUrl":null,"url":null,"abstract":"The corrosion behavior of DD5 single crystal alloy in moist air and NaCl aerosol at 750 and 900°C was investigated. At 750°C, (Ni, Co)O is the main initial corrosion product, and the (Ni, Co)O formed on the γ phase is significantly thicker than that on the γ’ phase. After 168 h of corrosion, a bi-layer oxide scale consisting of an external (Ni, Co)O layer and an internal (Cr, Al)2O3 layer was finally formed, and the internal corrosion product was Al2O3. At 900°C, although a thicker (Ni, Co)O layer was formed after 1 min of corrosion, the oxide scale finally developed into a multi-layer structure of (Ni, Co)O/spinel((Ni, Co)(Cr, Al)2O4)/Ta2O5/Al2O3. The continuous internal Al2O3 layer formed at 900°C effectively reduced the corrosion rate than that at 750°C. The corrosion mechanism of the alloy at 750 and 900°C was also comprehensively discussed.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"35 1","pages":""},"PeriodicalIF":14.3000,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Unveiling the anomalous temperature-dependent corrosion behavior of nickel-based single-crystal alloy in a NaCl-aerosol atmosphere\",\"authors\":\"Tiancheng Cui, Shujiang Geng, Xiying Niu, Minghui Chen, Fuhui Wang\",\"doi\":\"10.1016/j.jmst.2025.09.046\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The corrosion behavior of DD5 single crystal alloy in moist air and NaCl aerosol at 750 and 900°C was investigated. At 750°C, (Ni, Co)O is the main initial corrosion product, and the (Ni, Co)O formed on the γ phase is significantly thicker than that on the γ’ phase. After 168 h of corrosion, a bi-layer oxide scale consisting of an external (Ni, Co)O layer and an internal (Cr, Al)2O3 layer was finally formed, and the internal corrosion product was Al2O3. At 900°C, although a thicker (Ni, Co)O layer was formed after 1 min of corrosion, the oxide scale finally developed into a multi-layer structure of (Ni, Co)O/spinel((Ni, Co)(Cr, Al)2O4)/Ta2O5/Al2O3. The continuous internal Al2O3 layer formed at 900°C effectively reduced the corrosion rate than that at 750°C. The corrosion mechanism of the alloy at 750 and 900°C was also comprehensively discussed.\",\"PeriodicalId\":16154,\"journal\":{\"name\":\"Journal of Materials Science & Technology\",\"volume\":\"35 1\",\"pages\":\"\"},\"PeriodicalIF\":14.3000,\"publicationDate\":\"2025-10-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Science & Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jmst.2025.09.046\",\"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":"Journal of Materials Science & Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jmst.2025.09.046","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}

引用次数: 0

摘要

研究了DD5单晶合金在750℃和900℃潮湿空气和NaCl气溶胶中的腐蚀行为。750℃时，（Ni, Co）O是主要的初始腐蚀产物，在γ相上形成的（Ni, Co）O明显比在γ′相上形成的（Ni, Co）O厚。腐蚀168 h后，最终形成由外部（Ni, Co）O层和内部（Cr, Al）2O3层组成的双层氧化垢，内部腐蚀产物为Al2O3。在900℃时，虽然腐蚀1 min后形成较厚的（Ni, Co）O层，但氧化层最终发展为（Ni, Co）O/尖晶石((Ni, Co)(Cr, Al)2O4)/Ta2O5/Al2O3多层结构。900℃时形成的连续Al2O3内部层比750℃时有效地降低了腐蚀速率。并对合金在750℃和900℃的腐蚀机理进行了全面讨论。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Unveiling the anomalous temperature-dependent corrosion behavior of nickel-based single-crystal alloy in a NaCl-aerosol atmosphere

查看原文本刊更多论文

Unveiling the anomalous temperature-dependent corrosion behavior of nickel-based single-crystal alloy in a NaCl-aerosol atmosphere

The corrosion behavior of DD5 single crystal alloy in moist air and NaCl aerosol at 750 and 900°C was investigated. At 750°C, (Ni, Co)O is the main initial corrosion product, and the (Ni, Co)O formed on the γ phase is significantly thicker than that on the γ’ phase. After 168 h of corrosion, a bi-layer oxide scale consisting of an external (Ni, Co)O layer and an internal (Cr, Al)₂O₃ layer was finally formed, and the internal corrosion product was Al₂O₃. At 900°C, although a thicker (Ni, Co)O layer was formed after 1 min of corrosion, the oxide scale finally developed into a multi-layer structure of (Ni, Co)O/spinel((Ni, Co)(Cr, Al)₂O₄)/Ta₂O₅/Al₂O₃. The continuous internal Al₂O₃ layer formed at 900°C effectively reduced the corrosion rate than that at 750°C. The corrosion mechanism of the alloy at 750 and 900°C was also comprehensively discussed.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Journal of Materials Science & Technology 工程技术-材料科学：综合

CiteScore

20.00

自引率

11.00%

发文量

995

审稿时长

13 days

期刊介绍： Journal of Materials Science & Technology strives to promote global collaboration in the field of materials science and technology. It primarily publishes original research papers, invited review articles, letters, research notes, and summaries of scientific achievements. The journal covers a wide range of materials science and technology topics, including metallic materials, inorganic nonmetallic materials, and composite materials.