Laser cladding for wear and corrosion-resistant multifunctional Cr3Si-Cr2Ni3Si metal silicides matirx composite coatings

Hua Ming Wang; G. Duan; L. Y. Zhang; W. J. Xi

doi:10.1117/12.482880

12 September 2002 Laser cladding for wear and corrosion-resistant multifunctional Cr3Si-Cr2Ni3Si metal silicides matirx composite coatings

Hua Ming Wang, G. Duan, L. Y. Zhang, W. J. Xi

Author Affiliations +

Proceedings Volume 4915, Lasers in Material Processing and Manufacturing; (2002) https://doi.org/10.1117/12.482880
Event: Photonics Asia, 2002, Shanghai, China

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.

Citation Download Citation

Hua Ming Wang, G. Duan, L. Y. Zhang, and 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); https://doi.org/10.1117/12.482880

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