Evolution of stress fields and phase content in corroded zirconium cladding materials

Chong, Kok Boon and Fitzpatrick, Michael E. (2017). Evolution of stress fields and phase content in corroded zirconium cladding materials. Surface and Coatings Technology, 324 pp. 140–145.

DOI: https://doi.org/10.1016/j.surfcoat.2017.05.072

Abstract

In this study, the evolution of stress fields and structural phase composition have been studied using Raman spectroscopy pre- and post-transition in the oxide layer of re-crystallised ZIRLO and recrystallised zircaloy-4 (Zr-4) after corrosion exposure in a static autoclave. The structural phase composition analysis showed that the proportion of the tetragonal zirconia phase on the surface decreased with increasing corrosion time. High compressive stresses were found in the thin oxide, increasing with corrosion time, reaching a maximum in the transition period and decreasing slightly after that. The results show the relationship between the crystallographic phase and the residual stresses developed in the oxide.

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About

• Item ORO ID
• 53843
• Item Type
• Journal Item
• ISSN
• 0257-8972
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  Not Set	Not Set	Lloyd's Register Foundation

• Keywords
• Zr corrosion; Stress fields; Phase content; Raman spectroscopy
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM)
  Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
• Copyright Holders
• © 2017 Published by Elsevier B.V.
• Depositing User
• ORO Import