Surface and interface segregation in β-NiAl with and without Pt addition

Surface and interface segregation in β-NiAl with and without Pt addition

The segregation of alloying components and impurities to the surface and to the Al 2O 3/alloy interface after high temperature oxidation is examined and compared in stoichiometric and Ni-rich NiAl alloys with and without Pt addition. The relationship between surface/interface segregation and the rol...

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Veröffentlicht in:Scripta materialia 2006-03, Vol.54 (5), p.937-941
Hauptverfasser: Hou, P.Y., McCarty, K.F.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
Metals. Metallurgy
NiAl
Oxidation
Platinum
Segregation
Sulfur
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Zusammenfassung:The segregation of alloying components and impurities to the surface and to the Al 2O 3/alloy interface after high temperature oxidation is examined and compared in stoichiometric and Ni-rich NiAl alloys with and without Pt addition. The relationship between surface/interface segregation and the role of Pt in enhancing Al 2O 3 scale adhesion is discussed.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2005.10.065