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Apparent Inversion of the Effect of Alloyed Molybdenum for Corrosion of Ordinary and Enhanced 316L Stainless Steel in Sulfuric Acid

Published online by Cambridge University Press:  01 February 2011

Gloria Kwong ,
Anatolie Carcea  and
Roger C. Newman
Gloria Kwong
Affiliation:
Ontario Power Generation (OPG) 22 St. Clair Avenue East, Toronto, Ontario, Canada M4T 2S3
Roger C. Newman
Affiliation:
University of Toronto Dept of Chemical Engineering & Applied Chemistry 200 College Street, Toronto, Ontario, Canada M5S 3E5
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Abstract

An aging assessment of the OPG waste resin storage system predicted the potential for premature failure of the carbon steel resin liners. Consequently, resin liners made of 316L stainless steel with a minimum content of 2.5% molybdenum were selected to replace the carbon steel liners. The 2.5% Mo 316L stainless steel was specified to enhance pitting resistance in the spent resin environment. With the additional Mo, one would expect that a brief electrochemical corrosion test will reveal the superiority of such alloy over conventional 316L steel. This study reports a contrary experience

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1107: Scientific Basis for Nuclear Waste Management XXXI , 2008 , 537
Copyright
Copyright © Materials Research Society 2008

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