{"title":"Microstructure, Corrosive-Wear, and Electrochemical Properties of Laser Cladded NiCoCrAlY Coatings by Heat Treatment","authors":"Yiming Deng, Chenglong Yang, Dejun Kong","doi":"10.1002/adem.202401663","DOIUrl":null,"url":null,"abstract":"<p>Heat treatment plays a positive role in alloy coatings during the corrosive-wear and electrochemical process, in which the heating temperature is a key factor in the improvement of microstructure. In this work, the laser-cladded NiCoCrAlY coating is processed by heat treatment, and the effects of heating temperature on the microstructure, corrosive-wear, and electrochemical properties of obtained coatings are investigated. The results show that the average coefficients of friction and wear rates of NiCoCrAlY coatings are decreased with the increase of heating temperature, and the wear mechanism is mainly abrasive wear, adhesive wear, and pitting corrosion. Moreover, the corrosion resistance of NiCoCrAlY coatings is decreased with the increase of heating temperature, which is attributed to the precipitation of phases along the grain boundaries at high temperatures.</p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"26 24","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Engineering Materials","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/adem.202401663","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Heat treatment plays a positive role in alloy coatings during the corrosive-wear and electrochemical process, in which the heating temperature is a key factor in the improvement of microstructure. In this work, the laser-cladded NiCoCrAlY coating is processed by heat treatment, and the effects of heating temperature on the microstructure, corrosive-wear, and electrochemical properties of obtained coatings are investigated. The results show that the average coefficients of friction and wear rates of NiCoCrAlY coatings are decreased with the increase of heating temperature, and the wear mechanism is mainly abrasive wear, adhesive wear, and pitting corrosion. Moreover, the corrosion resistance of NiCoCrAlY coatings is decreased with the increase of heating temperature, which is attributed to the precipitation of phases along the grain boundaries at high temperatures.
期刊介绍:
Advanced Engineering Materials is the membership journal of three leading European Materials Societies
- German Materials Society/DGM,
- French Materials Society/SF2M,
- Swiss Materials Federation/SVMT.