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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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.

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Journal Article
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Corrosion Science
?? zirconiumalloydensity functional theoryautoclave corrosionbrouwer diagramhydrogen absorptionx-ray-diffractionoxidationmicroscopyzircaloy-4interfacezirconianiobiumoxideswater ??
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24 May 2018 12:54
Last Modified:
15 Jul 2024 17:53