Simulating the effect of roughness of the bond coat surface on stress distribution in EB-PVD thermal barrier coatings with finite element method

Mohammadreza Ebrahimi Fordoei, S. H. Hosseini, K. Madar, Mehrdad Khanda'i
{"title":"Simulating the effect of roughness of the bond coat surface on stress distribution in EB-PVD thermal barrier coatings with finite element method","authors":"Mohammadreza Ebrahimi Fordoei, S. H. Hosseini, K. Madar, Mehrdad Khanda'i","doi":"10.1080/22243682.2016.1188414","DOIUrl":null,"url":null,"abstract":"Thermal barrier coatings are widely used in gas turbine motors in air and ground sections (electricity generation). One of the challenges in developing these coatings is the fracture occurring around the interface of the ceramic layer with thermally grown oxide layer. These fractures result from the accumulation of energy around this area. Important parameters influencing stress distribution and fracture of thermal barrier are the roughness of the bond coat layer, the thickness of the coating and the mechanical properties of the coating components. In this paper, the effect of the roughness of the bond coat surface on stress distribution in different parts of thermal barrier coatings resulting from electron beam physical vapor deposition (EB-PVD) process was studied. The results indicated increase in roughness enhanced the curvature area, premature degradation of coating system led to thermal barrier.","PeriodicalId":17291,"journal":{"name":"Journal of the Chinese Advanced Materials Society","volume":"4 1","pages":"228-237"},"PeriodicalIF":0.0000,"publicationDate":"2016-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Chinese Advanced Materials Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/22243682.2016.1188414","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Thermal barrier coatings are widely used in gas turbine motors in air and ground sections (electricity generation). One of the challenges in developing these coatings is the fracture occurring around the interface of the ceramic layer with thermally grown oxide layer. These fractures result from the accumulation of energy around this area. Important parameters influencing stress distribution and fracture of thermal barrier are the roughness of the bond coat layer, the thickness of the coating and the mechanical properties of the coating components. In this paper, the effect of the roughness of the bond coat surface on stress distribution in different parts of thermal barrier coatings resulting from electron beam physical vapor deposition (EB-PVD) process was studied. The results indicated increase in roughness enhanced the curvature area, premature degradation of coating system led to thermal barrier.
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
用有限元法模拟EB-PVD热障涂层表面粗糙度对涂层应力分布的影响
热障涂层广泛应用于燃气轮机发动机的空中和地面部分(发电)。开发这些涂层的挑战之一是在陶瓷层与热生长氧化层的界面周围发生断裂。这些裂缝是由这个区域周围的能量积累造成的。影响热障应力分布和断裂的重要参数是粘结层的粗糙度、涂层的厚度和涂层组分的力学性能。本文研究了电子束物理气相沉积(EB-PVD)热障涂层表面粗糙度对其不同部位应力分布的影响。结果表明:涂层粗糙度增大,曲率面积增大,涂层体系过早降解导致热障的形成。
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
自引率
0.00%
发文量
0
期刊最新文献
Effects of silkworm variety on the mechanical and structural properties of silk Statistical analysis for orange G adsorption using kola nut shell activated carbon Efficiency of polymer/nanocarbon-based nanocomposite membranes in water treatment techniques Synthesis and characterization of novel water-compatible magnetic molecularly imprinted polymer for tartrazine Static and dynamic mechanical analysis of hybrid composite reinforced with jute and sisal fibres
×
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