Chakraborty, P and Kumar, N Naveen and Krishna, N Sai and Maheshwari, N K and Bysakh, S and Bose, A and Kain, V and Tewari, R (2021) Effect of oxide layer and the duration of exposure on the liquid metal corrosion mechanism of RAFM steel in molten Pb-Li. Corrosion Science, 183. Art No-109321. ISSN 0010-938X

PDF - Published Version Restricted to Registered users only Download (15Mb) | Request a copy

Abstract

The long-term corrosion behavior of IN-RAFM steel in molten Pb-Li upto 10, 000 h of exposure was studied in a rotating disc corrosion test facility at 823 K. As-received IN-RAFMS material possessed an air-formed surface layer containing oxides of Fe, Ce and W. Precipitation of chromium carbides at the grain/lath boundaries of asreceived IN-RAFMS led to grain boundary attack by liquid Pb-Li during the initial ?Incubation Period? which depicted slow dissolution of surface oxides and lesser corrosion rate. Complete dissolution of oxide layer altered the corrosion mechanism from grain boundary attack to matrix dissolution thereby increasing the corrosion rate.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	16 Dec 2021 12:22
Last Modified:	16 Dec 2021 12:22
URI:	http://cgcri.csircentral.net/id/eprint/5267

Actions (login required)

View Item