Study on EB-PVD zirconia thermal barrier coatings for gas turbine blade protection

被引：13
|
作者：
Gao, Y
Chen, MC
Shi, CX
机构：
[1] Inst Aeronaut Mat, Dept 5, Beijing 100095, Peoples R China
[2] Natl Nat Sci Fdn China, Beijing 100083, Peoples R China
来源：
MATERIALS AND MANUFACTURING PROCESSES | 1999年 / 14卷 / 05期
关键词：
D O I：
10.1080/10426919908914862
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Thermal barrier coatings on hollow turbine blades of DD3 were studied. The DD3 single crystal alloy has excellent mechanical properties, equivalent to that of PWA 1480. The results show that ZrO2 coatings consist of oriented columnar grains. The coating is composed of t', cubic and tetragonal phases and there is an alumina layer at the ZrO2-NiCrAlY alloy interface after aging for 30 min, at 1050 degrees C. No degradation occurred to the EBPVD ceramic coatings after 200 thermal cycles at 1100 degrees C for 10 min., air cooling and 100 hours high temperature oxidation at 1100 degrees C.
引用
收藏
页码：691 / 696
页数：6
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