Thermomechanical fatigue behavior of an air plasma sprayed thermal barrier coating system

被引：12
|
作者：
Chen, Z. B. [1 ,3 ]
Wang, Z. G. [1 ]
Zhu, S. J. [2 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
[2] Fukuoka Inst Technol, Dept Intelligent Mech Engn, Higashi Ku, Fukuoka 8110295, Japan
[3] Aviation Ind Corp China, Shenyang Aeroengine Res Inst, Shenyang 110015, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 29-30期
关键词：
Thermal barrier coating; Thermomechanical fatigue; Air plasma spraying; MECHANICAL FATIGUE; DAMAGE MECHANISMS; SUPERALLOY; EVOLUTION; LIFE;
D O I：
10.1016/j.msea.2011.08.031
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Failure behavior of an air plasma sprayed thermal barrier coating (TBC) system was investigated under in-phase (IP) and out-of-phase (OP) thermomechanical fatigue (TMF) tests. All the TMF tests were performed in the temperature range of 450-850 degrees C with a given period of 300s under mechanical strain control. Both the bond coat NiCrAlY and the top coat 7%Y(2)O(3)-ZrO(2) were fabricated by air plasma spraying (APS). Results revealed that the IP TMF lifetime was longer than that of the OP TMF under the same mechanical strain amplitude. Morphology observations of the failed specimens showed that the coating cracking and spallation processes were different in the two phase conditions. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：8396 / 8401
页数：6
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