12 September 2002 Laser cladding for wear and corrosion-resistant multifunctional Cr3Si-Cr2Ni3Si metal silicides matirx composite coatings
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Abstract
Wear and corrosion resistant multi-functional Cr3Si-Cr2Ni3Si composite coatings were fabricated on substrate of an austenitic stainless steel 1Cr18Ni9Ti by laser cladding using different Cr-Si-Ni alloy powders. Microstructure, metallic dry sliding wear and electrochemical corrosion behaviors of the metal suicide matrix composite coatings were investigated as a function of the Cr3Si volume fraction. The laser clad composite coatings have a rapidly solidified microstructure consisting of Cr3Si primary dendrites and the interdendritic Cr2Ni3Si ternary metal silicide. The volume fraction of primary Cr3Si dendrites was shown to have a remarkable influence on wear and corrosion resistance of the laser clad composite coatings. The higher the volume fraction of Cr3Si, the higher he wear and corrosion resistance of the coatings.
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Hua Ming Wang, G. Duan, L. Y. Zhang, W. J. Xi, "Laser cladding for wear and corrosion-resistant multifunctional Cr3Si-Cr2Ni3Si metal silicides matirx composite coatings", Proc. SPIE 4915, Lasers in Material Processing and Manufacturing, (12 September 2002); doi: 10.1117/12.482880; https://doi.org/10.1117/12.482880
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