摘要
以大气等离子喷涂(APS)法制备的热障涂层(TBCs)有诸多优点。随着燃机进口温度的逐步上升,热障涂层在综合作用下剥落,严重影响其服役寿命,研究涂层的失效机理成为APS热障涂层研究的重要方向。介绍了高温氧化、热循环及蠕变等因素对APS热障涂层使用寿命的影响,总结了其失效机理及寿命预测进展,展望了热障涂层未来的发展趋势。
A review is provided of the progress of research about the failaure mechanism and life prediction of atmospheric plasma sprayed( APS) thermal barrier coatings(TBCs). The effects of high-temperature oxidation,thermal cycling,and creep on the service life of TBCs are introduced. It is pointed out that,along with gradually increasing inlet temperature of turbine,the TBCs are liable to peeling off under the impact of various factors,which severely influences the service life of TBCs. This is why much attention is being increasingly placed on the failure mechanism of TBCs. Moreover,suggestions are also given about the development trend of TBCs.
出处
《材料保护》
CAS
CSCD
北大核心
2013年第10期48-51,6,共4页
Materials Protection
关键词
热障涂层
大气等离子喷涂
失效机理
寿命预测
thermal barrier coating
atmospheric plasma spra-ying
failure mechanism
life prediction
research progress
