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Effect of WC Concentration on Wear Resistance of Ni-WC Composite Coating

Sun Wanchan

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Abstract

Ni-WC composite coatings were prepared on medium carbon steel 45 by composite electrodeposition method.The morphologies and phases of Ni-WC composite coating were studied by SEM, EDS and XRD. The influences of WC concentration in bath on micro-hardness and wear resistance of the composite coating were investigated. The results indicate that WC particles are uniformly distributed in the coating, Ni-WC composite coating showes a good adhesion to the substrate.And the structure of Ni matrix is crystalline. Ni-WC composite coating with 25 g/L WC particles in bath exhibites a maximal micro-hardness and wear resistance.

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What this paper is about

Ni-WC composite coatings were prepared on medium carbon steel 45 by composite electrodeposition method.The morphologies and phases of Ni-WC composite coating were studied by SEM, EDS and XRD. The influences of WC concentration in bath on micro-hardness and wear resistance of the composite coating were investigated. The results indicate that WC particles are uniformly distributed in the coating, Ni-WC composite coating showes a good adhesion to the substrate.And the structure of Ni matrix is crystalline. Ni-WC composite coating with 25 g/L WC particles in bath exhibites a maximal micro-hardness and wear resistance.

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Available abstract

Ni-WC composite coatings were prepared on medium carbon steel 45 by composite electrodeposition method.The morphologies and phases of Ni-WC composite coating were studied by SEM, EDS and XRD. The influences of WC concentration in bath on micro-hardness and wear resistance of the composite coating were investigated. The results indicate that WC particles are uniformly distributed in the coating, Ni-WC composite coating showes a good adhesion to the substrate.And the structure of Ni matrix is crystalline. Ni-WC composite coating with 25 g/L WC particles in bath exhibites a maximal micro-hardness and wear resistance.

Key concepts: Materials science, Composite number, Coating, Wear resistance, Composite material, Substrate (aquarium), Adhesion, Metallurgy

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