Beneficial Effect of Pt and of Pre-Oxidation on the Oxidation Behaviour of an NiCoCrAlYTa Bond-Coating for Thermal Barrier Coating Systems

被引：37
|
作者：
Vande Put, Aurelie [1 ]
Oquab, Djar [1 ]
Pere, Eve [2 ]
Raffaitin, Aymeric [3 ]
Monceau, Daniel [1 ]
机构：
[1] ENSIACET, Inst Carnot CIRIMAT, F-31432 Toulouse 4, France
[2] Univ Pau & Pays Adour, IPREM, F-64053 Pau 9, France
[3] Turbomeca, F-64511 Bordes, France
来源：
OXIDATION OF METALS | 2011年 / 75卷 / 5-6期
关键词：
TBC system; Pt; MCrAlY; Oxidation; Pre-oxidation; Bond-coatings; PHYSICAL VAPOR-DEPOSITION; GROWN OXIDE; PHASE-TRANSFORMATIONS; ISOTHERMAL OXIDATION; REACTIVE ELEMENTS; TBC SYSTEMS; PLATINUM; PERFORMANCE; ADDITIONS; SCALE;
D O I：
10.1007/s11085-011-9241-y
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The oxidation behaviour of a thermal barrier coating (TBC) system is a major concern as the growth of the thermally grown oxide (TGO) layer on the bond-coating creates stresses that greatly favour the thermal barrier spallation. To delay the loss of the thermal protection provided, research has focused on the bond-coating composition and microstructure as well as on the parameters required for a suitable pre-oxidation treatment before the deposition of the ceramic top coat. Platinum is known to enhance the oxidation/corrosion resistance of MCrAlY coatings. The effect of Pt on the oxidation behaviour of a NiCoCrAlYTa coating was assessed in this study. In addition, pre-oxidation treatments were conducted to determine if the oxidation behaviour of the modified NiCoCrAlYTa coating could be further improved.
引用
收藏
页码：247 / 279
页数：33
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