Deng Shunjie , Jiang Chi , Liu Tianwei , Shuai Maobing , Wang Peng
{"title":"Characteristics of Al2O3-Pt/YSZ-Pt Double Layer Composite Coatings Prepared by Cathode Plasma Electrolytic Deposition","authors":"Deng Shunjie , Jiang Chi , Liu Tianwei , Shuai Maobing , Wang Peng","doi":"10.1016/S1875-5372(19)30003-7","DOIUrl":null,"url":null,"abstract":"<div><p>Al<sub>2</sub>O<sub>3</sub>-Pt/YSZ-Pt double layer composite coatings were prepared by cathode plasma electrolytic deposition (CPED) on the superalloy with a NiCoCrAlY bond-coat. The composite coatings consist of an Al<sub>2</sub>O<sub>3</sub>-Pt film and a YSZ-Pt top-coat and show a good adhesion to the metallic bond-coat. It is demonstrated, from the cyclic oxidation test and mechanical properties test, that such coatings possess good oxidation and spallation resistance. These beneficial results can be attributed to these effects: owing to the extremely low oxygen diffusion rate of Al<sub>2</sub>O<sub>3</sub>-Pt film, such composite coatings can inhibit further oxidation of the bond-coat; the mechanical properties of Al<sub>2</sub>O<sub>3</sub>-Pt/YSZ-Pt composite coating are improved by the toughening effect of Pt particles.</p></div>","PeriodicalId":21056,"journal":{"name":"稀有金属材料与工程","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1875-5372(19)30003-7","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"稀有金属材料与工程","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1875537219300037","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 1
Abstract
Al2O3-Pt/YSZ-Pt double layer composite coatings were prepared by cathode plasma electrolytic deposition (CPED) on the superalloy with a NiCoCrAlY bond-coat. The composite coatings consist of an Al2O3-Pt film and a YSZ-Pt top-coat and show a good adhesion to the metallic bond-coat. It is demonstrated, from the cyclic oxidation test and mechanical properties test, that such coatings possess good oxidation and spallation resistance. These beneficial results can be attributed to these effects: owing to the extremely low oxygen diffusion rate of Al2O3-Pt film, such composite coatings can inhibit further oxidation of the bond-coat; the mechanical properties of Al2O3-Pt/YSZ-Pt composite coating are improved by the toughening effect of Pt particles.
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