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Title: Effect of Y addition on the corrosion behavior of melt-spun amorphous Mg-Cu ribbons
Authors: Yao, H.B.
Li, Y. 
Wee, A.T.S. 
Pan, J.S.
Chai, J.W.
Issue Date: 2001
Citation: Yao, H.B.,Li, Y.,Wee, A.T.S.,Pan, J.S.,Chai, J.W. (2001). Effect of Y addition on the corrosion behavior of melt-spun amorphous Mg-Cu ribbons. Surface Review and Letters 8 (5) : 575-580. ScholarBank@NUS Repository.
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 CO3 2- anions into the surface film. Y addition in Mg-Cu improves the corrosion resistance by Y2O3 incorporation into the passive film, thus stabilizing the surface oxide components from hydration and preventing the incorporation of CO3 2- into the passive film.
Source Title: Surface Review and Letters
ISSN: 0218625X
DOI: 10.1016/S0218-625X(01)00146-4
Appears in Collections:Staff Publications

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