Phase constituents and thermal expansion behavior of a NiCrAlYRe coating alloy

Liang, J. J., Wei, H., Zhu, Y. L., Hu, Z. Q., Dargusch, M. S. and Yao, X. (2011) Phase constituents and thermal expansion behavior of a NiCrAlYRe coating alloy. Journal of Materials Science, 46 2: 500-508. doi:10.1007/s10853-010-4953-y


Author Liang, J. J.
Wei, H.
Zhu, Y. L.
Hu, Z. Q.
Dargusch, M. S.
Yao, X.
Title Phase constituents and thermal expansion behavior of a NiCrAlYRe coating alloy
Journal name Journal of Materials Science   Check publisher's open access policy
ISSN 0022-2461
1573-4803
Publication date 2011-01
Sub-type Article (original research)
DOI 10.1007/s10853-010-4953-y
Volume 46
Issue 2
Start page 500
End page 508
Total pages 9
Place of publication Secaucus, NJ, United States
Publisher Springer
Collection year 2012
Language eng
Formatted abstract
Phase constituents and properties of MCrAlY coating alloys play a crucial role in determining the performance of MCrAlY stand-alone overlay coatings and
thermal barrier coating systems. Recent advances in computer modeling including access to involved thermodynamic databases make it possible to predict phase
stabilities in these alloy systems. This article investigates the phase stabilities of a NiCrAlY coating alloy containing Re both experimentally and thermodynamically. The
addition of Re promotes the formation of the Cr-rich a-phase that owns low coefficient of thermal expansion (CTE), and thereby decreases the CTE of the NiCrAlYRe
coating alloy. In addition, the martensitic transformation of the B2 b-NiAl phase is investigated. This transformation has an important influence on the microhardness of the b-NiAl phase.
Keyword ALUMINIDE BOND COAT
CR-RE SYSTEM
BARRIER COATINGS
MCRALY COATINGS
MARTENSITIC-TRANSFORMATION
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2012 Collection
School of Engineering Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 6 times in Thomson Reuters Web of Science Article | Citations
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Created: Sun, 27 Feb 2011, 00:05:45 EST