Effect of Cyclic Heating on the Properties of PEO Coatings on an UFG Ti–18Zr–15Nb Alloy

{"title":"Effect of Cyclic Heating on the Properties of PEO Coatings on an UFG Ti–18Zr–15Nb Alloy","authors":"L. I. Zaynullina,&nbsp;I. Z. Sharipov,&nbsp;D. V. Gunderov,&nbsp;R. G. Farrakhov,&nbsp;E. V. Parfenov","doi":"10.1134/S0036029525700338","DOIUrl":null,"url":null,"abstract":"<p><b>Abstract</b>—The temperature dependence of the Ti–18Zr–15Nb alloy dilation in an ultrafine-grained (UFG) state formed by equal-channel angular pressing (ECAP), which is coated using plasma-electrolytic oxidation (PEO), is investigated. The stability of the formed PEO coatings to heating and cooling has also been determined. The results demonstrate that a sharp increase in the thermal expansion coefficient (TEC) at 350°C indicates the presence of a phase transformation. During tests, a porous coating on the Ti–18Zr–15Nb alloy is retained, but cracks become larger and longer.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 8","pages":"1797 - 1802"},"PeriodicalIF":0.4000,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Metallurgy (Metally)","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0036029525700338","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}