Comparative Heat-Resistance Investigation of Protective Coatings

IF 0.4 Q4 METALLURGY & METALLURGICAL ENGINEERING Russian Metallurgy (Metally) Pub Date : 2024-03-19 DOI:10.1134/S0036029523120376
A. V. Zorichev, G. T. Pashchenko, O. A. Parfenovskaya, V. M. Samoilenko, T. I. Golovneva
{"title":"Comparative Heat-Resistance Investigation of Protective Coatings","authors":"A. V. Zorichev,&nbsp;G. T. Pashchenko,&nbsp;O. A. Parfenovskaya,&nbsp;V. M. Samoilenko,&nbsp;T. I. Golovneva","doi":"10.1134/S0036029523120376","DOIUrl":null,"url":null,"abstract":"<p>Since modern gas turbine engines operate under changing temperature load conditions, one of the important characteristics of the protective coatings on turbine blades is their high resistance to the appearance and development of cracks under mechanical and thermal loads. The effective internal heat removal systems used to cool turbine blades lead to an increase in their thermal stress. Currently, the cracks induced by thermal fatigue are one of the common defects in the protective coatings on turbine blades. The heat resistance of the coatings at high temperatures is determined by the following three factors: the shape of the part onto which a coating is applied, the coating thickness, and the phase composition of the surface layers or the maximum aluminum content in the coating. Therefore, when a protective coating is chosen under specific operating conditions, it is important to know the influence of these factors on the heat resistance of the coating. In this work, we compare various coatings in terms of their resistance to cracking during cyclic temperature changes. The dependence of the heat resistance of the coatings on the method of their application and the phase-structural state is established. The revealed mechanism of thermal-fatigue crack formation and propagation as a function of the phase composition of the initial coating is especially valuable. The life of the protective coatings under cyclic temperature changes is shown to depend on the chemical composition of the coating and the method of its formation. The dependence of formation of thermal-fatigue cracks on samples with the coatings under study on the number of temperature change cycles is found.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2024-03-19","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/S0036029523120376","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0

Abstract

Since modern gas turbine engines operate under changing temperature load conditions, one of the important characteristics of the protective coatings on turbine blades is their high resistance to the appearance and development of cracks under mechanical and thermal loads. The effective internal heat removal systems used to cool turbine blades lead to an increase in their thermal stress. Currently, the cracks induced by thermal fatigue are one of the common defects in the protective coatings on turbine blades. The heat resistance of the coatings at high temperatures is determined by the following three factors: the shape of the part onto which a coating is applied, the coating thickness, and the phase composition of the surface layers or the maximum aluminum content in the coating. Therefore, when a protective coating is chosen under specific operating conditions, it is important to know the influence of these factors on the heat resistance of the coating. In this work, we compare various coatings in terms of their resistance to cracking during cyclic temperature changes. The dependence of the heat resistance of the coatings on the method of their application and the phase-structural state is established. The revealed mechanism of thermal-fatigue crack formation and propagation as a function of the phase composition of the initial coating is especially valuable. The life of the protective coatings under cyclic temperature changes is shown to depend on the chemical composition of the coating and the method of its formation. The dependence of formation of thermal-fatigue cracks on samples with the coatings under study on the number of temperature change cycles is found.

Abstract Image

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
保护涂层的耐热性比较研究
摘要由于现代燃气涡轮发动机是在不断变化的温度负荷条件下运行的,因此涡轮叶片保护涂层的一个重要特点就是在机械和热负荷条件下具有很强的抗裂纹出现和发展的能力。用于冷却涡轮叶片的有效内部散热系统会增加叶片的热应力。目前,热疲劳引起的裂纹是涡轮叶片保护涂层的常见缺陷之一。涂层在高温下的耐热性取决于以下三个因素:被涂覆部件的形状、涂层厚度、表层的相组成或涂层中的最大铝含量。因此,在特定工作条件下选择保护涂层时,了解这些因素对涂层耐热性的影响非常重要。在这项工作中,我们比较了各种涂层在温度循环变化时的抗开裂性。确定了涂层耐热性与应用方法和相结构状态的关系。所揭示的热疲劳裂纹形成和扩展机制与初始涂层相组成的函数关系尤为重要。在循环温度变化条件下,保护涂层的寿命取决于涂层的化学成分和形成方法。研究还发现,带有所研究涂层的样品上热疲劳裂纹的形成与温度变化循环次数有关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Russian Metallurgy (Metally)
Russian Metallurgy (Metally) METALLURGY & METALLURGICAL ENGINEERING-
CiteScore
0.70
自引率
25.00%
发文量
140
期刊介绍: Russian Metallurgy (Metally)  publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.
期刊最新文献
Phase States in the Li–Mn–Eu–O System Combined Deoxidation of Fe–Ni Melts by Manganese and Aluminum The Influence of Various Methods of Mechanical Actions on Magnetic Properties and Energy Losses during Magnetization Reversal in Soft Magnetic Ferromagnets The Chlorination Kinetics of Zirconium Dioxide Mixed with Carbon-Containing Material Kinetics and Thermodynamics of Iron(III) Ion Removal from Aqueous Solutions by Dowex G-26(H) Resin
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1