Life Prediction of Thermal Barrier Coating Considering Degradation and Thermal Fatigue

被引：13

作者：

Song, Hyunwoo ^{[1
]}

Kim, Yongseok ^{[1
]}

Lee, Jeong-Min ^{[1
]}

Yun, Junghan ^{[1
]}

Kim, Dae-Jin ^{[2
]}

Koo, Jae-Mean ^{[3
]}

Seok, Chang-Sung ^{[3
]}

机构：

[1] Sungkyunkwan Univ, Dept Mech Engn, 2066 Seobu Ro, Suwon 16419, Gyeonggi Do, South Korea

[2] Andong Natl Univ, Dept Mech Engn, 1375 Gyeongdong Ro, Andong 36729, Gyeongsangbuk D, South Korea

[3] Sungkyunkwan Univ, Sch Mech Engn, 2066 Seobu Ro, Suwon 16419, Gyeonggi Do, South Korea

来源：

INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING | 2016年 / 17卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

Thermal barrier coating; Thermal fatigue; Degradation; Life prediction; Bond strength test; CYCLIC OXIDATION; TBC SYSTEMS; FAILURE; MICROSTRUCTURE; LAYER;

D O I：

10.1007/s12541-016-0031-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A thermal barrier coating (TBC) is used to protect gas turbine components from extreme environments. Typically, the TBC system consists of two parts: a ceramic top coat and metallic bond coat. Thus, the TBC system is exposed to thermal fatigue owing to the mismatch between the thermal expansions of the ceramic top coat and metallic bond coat. The durability of the TBC decreases with repeated thermal fatigue and degradation under high-temperature conditions, which can eventually result in failure. Therefore, the life of the TBC should be predicted while considering degradation and thermal fatigue. In this study, TBC specimens were produced under different degradation and thermal fatigue conditions, and the bond test was performed on these specimens. Based on the bond test results, the life of the TBC was predicted according to degradation and thermal fatigue.

引用

页码：241 / 245

页数：5

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