EFFECT OF Y ADDITION ON THE CORROSION BEHAVIOR OF MELT-SPUN AMORPHOUS Mg

EFFECT OF Y ADDITION ON THE CORROSION BEHAVIOR OF MELT-SPUN AMORPHOUS Mg–Cu RIBBONS

Published:2001-10 Issue:05 Volume:08 Page:575-580
ISSN:0218-625X
Container-title:Surface Review and Letters
language:en
Short-container-title:Surf. Rev. Lett.

Author:

YAO H. B.¹,LI Y.¹,WEE A. T. S.²,PAN J. S.³,CHAI J. W.³

Affiliation:

1. Department of Materials Science, National University of Singapore, Singapore 119260, Singapore

2. Department of Physics, National University of Singapore, Singapore 119260, Singapore

3. Institute of Materials Research and Engineering, Singapore 119260, Singapore

Abstract

Hydrogen evolution testing and anodic potentiodynamic polarization revealed that Y addition has a beneficial effect on the corrosion resistance of melt-spun amorphous Mg–Cu ribbon, which is related to the properties of the surface film of Mg–Cu and the manner in which its properties are modified as a result of Y alloying. X-ray photoelectron spectroscopy (XPS) depth profiling revealed that the breakdown of Mg–Cu was caused by the hydration of surface oxide components and the incorporation of detrimental CO 32– anions into the surface film. Y addition in Mg–Cu improves the corrosion resistance by Y 2 O 3 incorporation into the passive film, thus stabilizing the surface oxide components from hydration and preventing the incorporation of CO 32– into the passive film.

Publisher

World Scientific Pub Co Pte Lt

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218625X01001464

Reference21 articles.

1. High Mechanical Strengths of Mg–Ni–Y and Mg–Cu–Y Amorphous Alloys with Significant Supercooled Liquid Region

2. Mg–Cu–Y Amorphous Alloys with High Mechanical Strengths Produced by a Metallic Mold Casting Method

3. Mg–Cu–Y Bulk Amorphous Alloys with High Tensile Strength Produced by a High-Pressure Die Casting Method

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