Das, Sumana and Datta, Someswar and Basu, Debabrata and Das, G C (2008) Hot corrosion of glass coating on nickel base superalloy. Ceramics International, 34 (5). pp. 1215-1222. ISSN 0272-8842

PDF - Published Version Restricted to Registered users only Download (1263Kb) | Request a copy

Abstract

Hot corrosion behaviour of BaO-MgO-SiO2 based glass coating on nickel base superalloy was studied using 80 wt.% Na2SO4 + 20 wt.% NaCl salt mixture, which melts at about 700 degrees C. In one set of experiments the glass coated superalloy substrates were immersed in the molten salt wherein in the other samples were suspended in the salt vapour at 1000 degrees C. During the test, mass loss per unit surface area was observed to be higher for specimens suspended in the salt vapour. The phase composition and microstructure of the corroded coating were investigated by X-ray diffraction (XRD), optical microscopy and scanning electron microscopy (SEM) in association with energy dispersive X-ray (EDX) analysis. (c) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	surfaces; corrosion; glass; engine components
Subjects:	Processing Science
Divisions:	UNSPECIFIED
Depositing User:	Bula Ghosh
Date Deposited:	17 Jan 2012 08:05
Last Modified:	19 Sep 2012 06:24
URI:	http://cgcri.csircentral.net/id/eprint/261

Actions (login required)

View Item