2006•Materials for Mechanical EngineeringRequires access

Structure of Laser Cladded Ni-based Alloy Coating

Gao Jia-sheng

Abstract

Ni-based coating was prepared by irradiating the mixture powders of Ni-Cr-B-Si on 16Mn mild steel. The microstructure and hardness of the coating were examined. The effect of laser power on the microstructure and property of the Ni-based coating were investigated. The Ni-based alloy layer could be divided into dendrite and equiaxial crystal. The hardness was 400 - 500 HV. Theγ-Ni structure and preferential orientation were observed in the laser cladding.

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Key concepts: Materials science, Microstructure, Coating, Alloy, Dendrite (mathematics), Laser, Metallurgy, Layer (electronics)