Damage mechanisms, life prediction, and development of EB-PVD thermal barrier coatings for turbine airfoils

被引：100

作者：

Strangman, Tom ^{[1
]}

Raybould, Derek ^{[2
]}

Jameel, Ahsan ^{[1
]}

Baker, Wil ^{[1
]}

机构：

[1] Honeywell, Mat & Proc Engn, Phoenix, AZ 85034 USA

[2] Honeywell, Morristown, NJ USA

来源：

SURFACE & COATINGS TECHNOLOGY | 2007年 / 202卷 / 4-7期

关键词：

thermal barrier coating; life prediction; zirconia; EB-PVD; turbine; CMAS;

D O I：

10.1016/j.surfcoat.2007.06.067

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Thermal barrier coatings (TBCs) must successfully resist damage from a variety of environmental and mechanical mechanisms to be viable on turbine airfoils. This paper reviews engine-operative TBC damage mechanisms and the requirements for life methods that enable a designer and engine operator to achieve acceptable TBCed component lives. Understanding TBC damage mechanisms facilitates development of advanced TBCs. The following damage mechanisms are discussed: growth and cracking of the bond coating's thermally grown oxide and its interfaces molten deposit (sulfate salt and calcia-magnesia-alumina-silicate) wicking into TBC sintering shrinkage, particle impact, bond coating creep (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：658 / 664

页数：7

共 31 条

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