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Abstract

A Mg-Al intermetallic compounds coating was prepared on the surface of Mg-steel lap joint by arc-sprayed Al-Mg composite coating (Mg-cathode and Al-anode) and its post-heat treatment (PHT). The effect of PHT temperature on the phase transition, microstructure and mechanical properties of the coating was investigated by X-ray diffraction, scanning electron microscope, energy dispersive X-ray spectroscopy, optical microscope and microhardness test. The result shows that the intermetallic compounds layer that is mainly composed of Al3Mg2and Mg17Al12is formed by the self-diffusion reaction of Mg and Al splats in the coating after PHT for 4 h at 430 °C. © 2010 Elsevier B.V. All rights reserved.

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Xu, R., & Song, G. (2011). Post-heat treatment of arc-sprayed coating prepared by the wires combination of Mg-cathode and Al-anode to form protective intermetallic layers. Applied Surface Science, 257(7), 3097–3102. https://doi.org/10.1016/j.apsusc.2010.10.123

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