{"title":"使用 HVOF 喷射技术在含 WC-Co 的镍基合金上喷涂 Fe-2.25Cr-0.54Mo 的水蒸气中进行高温腐蚀","authors":"Jennarong Tungtrongpairoj, Penpisuth Thongyoug, Thanasak Nilsonthi, Somrerk Chandra-ambhorn","doi":"10.1007/s11085-024-10224-3","DOIUrl":null,"url":null,"abstract":"<div><p>The high temperature corrosion of Fe-2.25Cr-0.54Mo steel coated with WC–Co/NiCrFeSiB using a high-velocity oxy-fuel spraying technique was investigated. Coated and uncoated steel samples were tested in air and in a humidified atmosphere consisting of N<sub>2</sub>-50%, O<sub>2</sub>-10%, and H<sub>2</sub>O at 750 °C for 120 h. Microstructural and phase analyses of the studied samples were performed by scanning electron microscopy equipped with energy-dispersive spectroscopy and X-ray diffraction. When compared to oxidation in air, the oxidation rate of the uncoated sample in the humidified atmosphere was faster. This occurred because there was a thicker and denser iron oxide layer at the outer subscale, and the thicker layer of inner iron oxide subscale contained chromium (Cr). Moreover, the WC–Co/NiCrFeSiB coating greatly suppressed the rates of oxidation in both the air and the humidified oxygen atmospheres. This occurred because the formation of magnetite (Fe<sub>3</sub>O<sub>4</sub>) was suppressed, while the protective oxides, especially nickel–chromium (Ni–Cr) spinel and chromia (Cr<sub>2</sub>O<sub>3</sub>) were formed during oxidation. Water vapor in the atmosphere enhanced the oxidation rate of the coated steel, with higher iron-containing oxide forming as a subscale at the outer coating.</p><h3>Graphic Abstract</h3>\n<div><figure><div><div><picture><img></picture></div></div></figure></div></div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 2","pages":"331 - 350"},"PeriodicalIF":2.1000,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High Temperature Corrosion in Water Vapor of Fe–2.25Cr–0.54Mo Coated with Ni-Based Alloy Containing WC–Co Using an HVOF Spraying Technique\",\"authors\":\"Jennarong Tungtrongpairoj, Penpisuth Thongyoug, Thanasak Nilsonthi, Somrerk Chandra-ambhorn\",\"doi\":\"10.1007/s11085-024-10224-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The high temperature corrosion of Fe-2.25Cr-0.54Mo steel coated with WC–Co/NiCrFeSiB using a high-velocity oxy-fuel spraying technique was investigated. Coated and uncoated steel samples were tested in air and in a humidified atmosphere consisting of N<sub>2</sub>-50%, O<sub>2</sub>-10%, and H<sub>2</sub>O at 750 °C for 120 h. Microstructural and phase analyses of the studied samples were performed by scanning electron microscopy equipped with energy-dispersive spectroscopy and X-ray diffraction. When compared to oxidation in air, the oxidation rate of the uncoated sample in the humidified atmosphere was faster. This occurred because there was a thicker and denser iron oxide layer at the outer subscale, and the thicker layer of inner iron oxide subscale contained chromium (Cr). Moreover, the WC–Co/NiCrFeSiB coating greatly suppressed the rates of oxidation in both the air and the humidified oxygen atmospheres. This occurred because the formation of magnetite (Fe<sub>3</sub>O<sub>4</sub>) was suppressed, while the protective oxides, especially nickel–chromium (Ni–Cr) spinel and chromia (Cr<sub>2</sub>O<sub>3</sub>) were formed during oxidation. Water vapor in the atmosphere enhanced the oxidation rate of the coated steel, with higher iron-containing oxide forming as a subscale at the outer coating.</p><h3>Graphic Abstract</h3>\\n<div><figure><div><div><picture><img></picture></div></div></figure></div></div>\",\"PeriodicalId\":724,\"journal\":{\"name\":\"Oxidation of Metals\",\"volume\":\"101 2\",\"pages\":\"331 - 350\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-02-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Oxidation of Metals\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11085-024-10224-3\",\"RegionNum\":3,\"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":"Oxidation of Metals","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11085-024-10224-3","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
High Temperature Corrosion in Water Vapor of Fe–2.25Cr–0.54Mo Coated with Ni-Based Alloy Containing WC–Co Using an HVOF Spraying Technique
The high temperature corrosion of Fe-2.25Cr-0.54Mo steel coated with WC–Co/NiCrFeSiB using a high-velocity oxy-fuel spraying technique was investigated. Coated and uncoated steel samples were tested in air and in a humidified atmosphere consisting of N2-50%, O2-10%, and H2O at 750 °C for 120 h. Microstructural and phase analyses of the studied samples were performed by scanning electron microscopy equipped with energy-dispersive spectroscopy and X-ray diffraction. When compared to oxidation in air, the oxidation rate of the uncoated sample in the humidified atmosphere was faster. This occurred because there was a thicker and denser iron oxide layer at the outer subscale, and the thicker layer of inner iron oxide subscale contained chromium (Cr). Moreover, the WC–Co/NiCrFeSiB coating greatly suppressed the rates of oxidation in both the air and the humidified oxygen atmospheres. This occurred because the formation of magnetite (Fe3O4) was suppressed, while the protective oxides, especially nickel–chromium (Ni–Cr) spinel and chromia (Cr2O3) were formed during oxidation. Water vapor in the atmosphere enhanced the oxidation rate of the coated steel, with higher iron-containing oxide forming as a subscale at the outer coating.
期刊介绍：
Oxidation of Metals is the premier source for the rapid dissemination of current research on all aspects of the science of gas-solid reactions at temperatures greater than about 400˚C, with primary focus on the high-temperature corrosion of bulk and coated systems. This authoritative bi-monthly publishes original scientific papers on kinetics, mechanisms, studies of scales from structural and morphological viewpoints, transport properties in scales, phase-boundary reactions, and much more. Articles may discuss both theoretical and experimental work related to gas-solid reactions at the surface or near-surface of a material exposed to elevated temperatures, including reactions with oxygen, nitrogen, sulfur, carbon and halogens. In addition, Oxidation of Metals publishes the results of frontier research concerned with deposit-induced attack. Review papers and short technical notes are encouraged.
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