{"title":"Erosion resistance of a combined multilayer coating protecting critical parts of modern gas turbine engines","authors":"B. Guzanov, N. B. Pugacheva, T. Bykova","doi":"10.17804/2410-9908.2021.2.006-021","DOIUrl":null,"url":null,"abstract":"Comprehensive studies of the chemical composition, microstructure, and thickness of a combined multilayer coating on a heat-resistant nickel alloy are presented. The distribution pat-tern of chemical elements over the coating thickness for all the layers, namely the inner aluminosili-cated layer, the plasma sublayer, and the outer heat-insulating layer, has been established. Surface roughness was determined at all the stages of coating application and after testing. The results of comparative tests of corrosion-erosion resistance and resistance to burn-through of a diffusion aluminosilicide coating, a two-layer heat-insulating coating, and a combined multilayer coating are presented. High heat-shielding properties of a combined multilayer coating on a heat-resistant nickel alloy have been discovered.","PeriodicalId":11165,"journal":{"name":"Diagnostics, Resource and Mechanics of materials and structures","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Diagnostics, Resource and Mechanics of materials and structures","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.17804/2410-9908.2021.2.006-021","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
Comprehensive studies of the chemical composition, microstructure, and thickness of a combined multilayer coating on a heat-resistant nickel alloy are presented. The distribution pat-tern of chemical elements over the coating thickness for all the layers, namely the inner aluminosili-cated layer, the plasma sublayer, and the outer heat-insulating layer, has been established. Surface roughness was determined at all the stages of coating application and after testing. The results of comparative tests of corrosion-erosion resistance and resistance to burn-through of a diffusion aluminosilicide coating, a two-layer heat-insulating coating, and a combined multilayer coating are presented. High heat-shielding properties of a combined multilayer coating on a heat-resistant nickel alloy have been discovered.
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