3.8 Article

Effect of Electrolyte Composition on Protective Properties of the PEO Coating on Zr-1Nb Zirconium Alloy

Journal

SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY
Volume 55, Issue 5, Pages 514-521

Publisher

PLEIADES PUBLISHING INC
DOI: 10.3103/S106837551905003X

Keywords

plasma electrolytic oxidation; zirconium alloy; electrochemical tests; coefficient of hydride orientation; hydrogen pickup

Funding

  1. Russian Foundation for Basic Research and Department of Science and Technology, India [N16-53-48008]

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The paper deals with the effect of the electrolyte composition on the protective properties of the PEO-coating on the Zr-1Nb zirconium alloy. To assess the functional properties of the coatings and their topography and microstructure, elemental and phase contents are studied and electrochemical and accelerated operational tests are performed to identify the most efficient electrolyte. It is found that the coatings obtained in the silicate-phosphate electrolyte exhibit the best protective properties.

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