Influence of plasma spraying parameters on properties of thermal barrier coatings

被引：10
|
作者：
Mrdak, M. R. [1 ]
Vencl, A. [2 ]
Nedeljkovic, B. D. [3 ]
Stankovic, M. [2 ]
机构：
[1] IMTEL Microwaves Inc, Belgrade 11070, Serbia
[2] Univ Belgrade, Fac Mech Engn, Belgrade 11120, Serbia
[3] Tech Coll Profess Studies Kragujevac, Kragujevac 34000, Serbia
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2013年 / 29卷 / 05期
关键词：
Thermal barrier coatings; Atmospheric plasma spraying; Parameters optimisation; Thermal insulation; Thermal cycling; MICROSTRUCTURE DEVELOPMENT; SPLAT FORMATION; ZIRCONIA; TRANSFORMATION; FAILURE; ENGINE;
D O I：
10.1179/1743284712Y.0000000193
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The aim of the present study is to investigate the influence of plasma spay deposition parameters on various properties of two standard thermal barrier coating (TBC) systems deposited on the steel substrate. Two TBC systems were investigated: NiCr-Al-Co-Y2O3/ZrO2-Y2O3 and NiCr-Al-Co-Y2O3/ZrO2-CeO2-Y2O3. Powders were deposited by atmospheric plasma spraying (APS) with two variable parameters. The first variable was substrate temperature (21-23 and 160-180 degrees C), and the second variable was transverse speed of the spraying gun (250 and 500 mm s(-1)), i.e. coating thickness per one pass of the spraying gun. The quality assessments of TBC systems were made on the base of their microstructure, microhardness, tensile bond strength and thermal cyclic behaviour (thermal insulation properties and thermal cycling fatigue). Analysis of the results showed great influence of plasma spray deposition parameters on the quality of obtained TBCs.
引用
收藏
页码：559 / 567
页数：9
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