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Kim, Ji Hyun
UNIST Nuclear Innovative Materials Laboratory(UNIMAT)
Research Interests
  • High temperature water corrosion
  • Liquid metal corrosion
  • Material degradation simulation

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Phase transformation of oxide film in zirconium alloy in high temperature hydrogenated water

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Title
Phase transformation of oxide film in zirconium alloy in high temperature hydrogenated water
Author
Kim, TaehoKim, JongjinChoi, Kyoung JoonYoo, Seung ChangKim, SeunghyunKim, Ji Hyun
Issue Date
2015-10
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
CORROSION SCIENCE, v.99, pp.134 - 144
Abstract
The effect of the variation of the dissolved hydrogen concentration on the oxide phase transformation under high-temperature hydrogenated water conditions was investigated using in situ Raman spectroscopy. The Raman spectrum in 50 cm(3)/kg of dissolved hydrogen concentration indicated the formation of monoclinic and tetragonal zirconium oxide at the water-substrate interface. As the dissolved hydrogen concentration decreased to 30 cm(3)/kg, the Raman peaks corresponding to the zirconium oxide phase changed, indicating an oxide phase transformation. And, the results of SEM and TEM analyses were compared with those of in situ analyses obtained for the oxide structure formed on the zirconium alloy. (C) 2015 Elsevier Ltd. All rights reserved.
URI
https://scholarworks.unist.ac.kr/handle/201301/16641
URL
http://www.sciencedirect.com/science/article/pii/S0010938X1500325X
DOI
10.1016/j.corsci.2015.06.034
ISSN
0010-938X
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