Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - The influence of alloying elements on the corrosion of Zr alloys
AU - Bell, B. D. C.
AU - Murphy, S. T.
AU - Burr, P. A.
AU - Comstock, R. J.
AU - Partezana, J. M.
AU - Grimes, R. W.
AU - Wenman, M. R.
PY - 2016/4
Y1 - 2016/4
N2 - 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.
AB - 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.
KW - Zirconium
KW - Alloy
KW - Density functional theory
KW - Autoclave corrosion
KW - Brouwer diagram
KW - Hydrogen absorption
KW - X-RAY-DIFFRACTION
KW - OXIDATION
KW - MICROSCOPY
KW - ZIRCALOY-4
KW - INTERFACE
KW - ZIRCONIA
KW - NIOBIUM
KW - OXIDES
KW - WATER
U2 - 10.1016/j.corsci.2015.12.022
DO - 10.1016/j.corsci.2015.12.022
M3 - Journal article
VL - 105
SP - 36
EP - 43
JO - Corrosion Science
JF - Corrosion Science
SN - 0010-938X
ER -