The influence of alloying elements on the corrosion of Zr alloys

Bell, B. D. C. and Murphy, S. T. and Burr, P. A. and Comstock, R. J. and Partezana, J. M. and Grimes, R. W. and Wenman, M. R. (2016) The influence of alloying elements on the corrosion of Zr alloys. Corrosion Science, 105. pp. 36-43. ISSN 0010-938X

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Abstract

Density functional theory (DFT) and autoclave corrosion tests in 360 degrees C water were used to investigate the influence of Sb, Sc, Nb and Sn on the corrosion and hydrogen pick-up (HPU) of Zr-alloys. Sc was shown to have a strongly detrimental effect on alloy corrosion resistance. The Nb-Sb-Zr ternary alloy exhibited significantly improved corrosion resistance over Zr-Nb and ZIRLO, and had little measurable HPU after 195 days. The ratio of Sb'(zr)/Sb-zr(center dot). was shown to transition smoothly with applied space charge, implying Sb can act as a buffer to charge imbalance in the oxide layer. (C) 2016 Elsevier Ltd. All rights reserved.

Item Type:
Journal Article
Journal or Publication Title:
Corrosion Science
Subjects:
ID Code:
125457
Deposited By:
Deposited On:
24 May 2018 12:54
Refereed?:
Yes
Published?:
Published
Last Modified:
07 Apr 2020 05:21