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January 24, 2010 | History

The effect of lead ions on the dissolution and passivation of nickel base alloys 1 edition

The effect of lead ions on the dissolution and passivation of nickel b ...
Harshan Radhakrishnan

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The effect of lead ions on the dissolution and passivation of nickel base alloys.

Published 2006 .
Written in English.

About the Book

The anodic behaviour of various nickel-base materials has been examined at 90°C using simple acids in the presence of varying levels of lead. Lead, injected at potentials above the Pb++/Pb equilibrium, inhibited active dissolution of Ni due to underpotential deposition, a new observation. The inhibition is higher and happens over a wider range of potentials in the more acidic condition. Activation of Ni results on a surface that is trying to term its pre-passive film but is partly covered by Pb. The Cr content of Alloy 600 is insufficient to eliminate the lead effect, and evidence of nickel-like behaviour is present for this alloy. The presence of 21% Cr suppresses active dissolution, and eliminates, for these particular conditions, both the inhibiting and the activating effects of Pb. The relevance of these results to corrosion and SCC caused by lead in nuclear power systems is briefly discussed.

Edition Notes

Source: Masters Abstracts International, Volume: 44-06, page: 2885.

Thesis (M.A.Sc.)--University of Toronto, 2006.

Electronic version licensed for access by U. of T. users.

ROBARTS MICROTEXT copy on microfiche.

The Physical Object

80 leaves.
Number of pages

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History Created December 11, 2009 · 2 revisions Download catalog record: RDF / JSON

January 24, 2010 Edited by WorkBot add more information to works
December 11, 2009 Created by WorkBot add works page