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Title: Effect of some sodium salts coatings on the high-temperature oxidation of Nimonic-80A alloy at 1173 K
Authors: Mohammed Misbahul, Amin
Keywords: Coatings;Nickel;Oxidation;Sodium;Surface morphology;Alloys
Issue Date: 1997
Publisher: Elsevier Science B.V.
Citation: Thin Solid Films , vol.299 (1-2), 1997, pages 1-4.
Abstract: The effects of some sodium salts, namely Na2S04, NaCl, NaN03 and Na2C03 coatings, on the high-temperature oxidation behaviour of Nimonic-80A (N-80A) alloy at 1173 K in a slow current of air are presented. The oxidation kinetics and effects of salt deposition on the N-80A alloy were investigated. The alloy is more severely attacked by NaCl than by Na2S04, due to the formation of volatile chlorides. NaN03-and Na2C03-induced alloy seem to be more aggressive than Na2S04 and NaCl due to the evolution of nitrogeneous and CO/C02 gases respectively. The scale morphologies were determined on the basis of X-ray diffraction analysis and scanning electron microscopic techniques.
Description: Link to publisher's homepage at http://www.elsevier.com/wps/find/homepage.cws_home
URI: http://www.sciencedirect.com/science/journal/00406090
ISSN: 0040-6090
Appears in Collections:School of Materials Engineering (Articles)

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