Title of article
A comparative study of DS NiCrAlY coating and LPPS NiCrAlY coating
Author/Authors
Zhang، نويسنده , , Y.J. and Sun، نويسنده , , X.F. and Zhang، نويسنده , , Y.C. and Jin، نويسنده , , T. and Deng، نويسنده , , C.G. and Guan، نويسنده , , H.R. and Hu، نويسنده , , Z.Q.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
5
From page
65
To page
69
Abstract
Two thermal spraying techniques, namely, detonation gun spraying (DS) and low pressure plasma spraying (LPPS), were used to prepare different NiCrAlY coatings on a single crystal (SC) Ni-based superalloy. Microstructure, surface hardness, adhesion strength and high-temperature oxidation behavior of DS NiCrAlY coating and LPPS NiCrAlY coating were compared. The results showed that the two coatings in as-sprayed state had the same splat layer structure. Somewhat differently, oxidation reaction took place in DS process and Al2O3 sandwiched between the splats in DS NiCrAlY coating. It is found that the surface hardness of DS coatings are higher than those of LPPS coating. But the oxidation resistance of DS coating is relatively lower.
Keywords
Detonation gun spraying , Low-pressure plasma spraying , Oxidation resistance , microstructure
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Serial Year
2003
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Record number
2142866
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