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HE Huabo, YANG Mengmeng, HUANG Xiaobo, DAI Jiaoyan, XU Jinfu. Wear Resistance and Corrosion Resistance of Different Laser Cladding Layers on Surface of Screw Steel[J]. Materials and Mechanical Engineering, 2017, 41(10): 11-14,19. DOI: 10.11973/jxgccl201710003
Citation: HE Huabo, YANG Mengmeng, HUANG Xiaobo, DAI Jiaoyan, XU Jinfu. Wear Resistance and Corrosion Resistance of Different Laser Cladding Layers on Surface of Screw Steel[J]. Materials and Mechanical Engineering, 2017, 41(10): 11-14,19. DOI: 10.11973/jxgccl201710003

Wear Resistance and Corrosion Resistance of Different Laser Cladding Layers on Surface of Screw Steel

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  • Received Date: October 07, 2016
  • Revised Date: August 23, 2017
  • Ni35, Fe-based, Co-based and Ni60A alloy layers were laser cladded on 38CrMoAl steel by a CO2 laser machine. The microstructures, wear resistance and corrosion resistance of the different cladding layers were studied and compared. The results show that the microstructures of the four cladding layers consisted of fine dendrites. The surface microhardness of Ni60A alloy, Fe-based alloy, Co-based alloy and Ni35 alloy cladding layers was 771,614,380,290 HV0.1, respectively. The wear resistance of the Ni60A alloy cladding layer was the best with the wear rate of 4.124×10-14 m3·N-1·m-1, and that of Fe-based alloy cladding layer, Co-based alloy cladding layer and Ni35 alloy cladding layer decreased in turn. The corrosion resistance of the Ni60A alloy and Co-based alloy cladding layers was the best and both had a corrosion protection rating of 8. The corrosion resistance of Ni35 alloy cladding layer took the second place while that of the Fe-based alloy cladding layer was the worst.
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