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Effects of Lead, Mercury, and Reduced Sulfur Species on the Corrosion of Alloy 22 in Concentrated Groundwaters as a Function of pH and Temperature

Published online by Cambridge University Press:  21 March 2011

April L. Pulvirenti ,
Karen M. Needhama ,
Mohamad A. Adel-Hadadi ,
Charles R. Marks ,
Jeffrey A. Gorman  and
Aaron Barkatt
April L. Pulvirenti
Affiliation:
Department of Chemistry, The Catholic University of America, Washington, DC 20064
Karen M. Needhama
Affiliation:
Department of Chemistry, The Catholic University of America, Washington, DC 20064
Mohamad A. Adel-Hadadi
Affiliation:
Department of Chemistry, The Catholic University of America, Washington, DC 20064
Charles R. Marks
Affiliation:
Dominion Engineering Inc., McLean, VA 22101
Jeffrey A. Gorman
Affiliation:
Dominion Engineering Inc., McLean, VA 22101
Aaron Barkatt
Affiliation:
Department of Chemistry, The Catholic University of America, Washington, DC 20064
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Abstract

The effect of Pb, Hg, thiosulfate and sulfide on the corrosion of Alloy 22 was studied. In solutions of 1000xJ13 groundwater doped with these contaminants, disks and U-bend specimens exhibited general corrosion and pitting at pH 1, and some dissolution at pH 13. One specimen exposed to the presence of Pb cracked catastrophically. In basic media thiosulfate and sulfide caused both oxide spalling and enhanced general corrosion.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 713: Symposium JJ – Scientific Basis for Nuclear Waste Management XXV , 2002 , JJ11.6
Copyright
Copyright © Materials Research Society 2002

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References

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