Volume 33 Issue 1
Feb.  2018
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GENG Hao, QIU Qunxian, BU Min, WU Lizhou. Arc Erosion Resistance of W80/Cu-Al2O3 Composites[J]. Development and Application of Materials, 2018, 33(1): 43-48. DOI: 10.19515/j.cnki.1003-1545.20171027.001
Citation: GENG Hao, QIU Qunxian, BU Min, WU Lizhou. Arc Erosion Resistance of W80/Cu-Al2O3 Composites[J]. Development and Application of Materials, 2018, 33(1): 43-48. DOI: 10.19515/j.cnki.1003-1545.20171027.001
shu

Arc Erosion Resistance of W80/Cu-Al2O3 Composites

  • 1. The 713th Research Institute of China Shipbuilding Industry Corporation, Zhengzhou 450015, China;

  • 2. Luoyang Ship Material Research Institute, Luoyang 471023, China

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  • Received Date: September 03, 2017
  • Available Online: March 17, 2024
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    • Abstract
  • The W80/Cu-Al2O3 composites were prepared by powder metallurgy and infiltrating method and, the density, hardness and electrical conductivity of composite were tested. The effect of Al2O3 on arc erosion resistance of W80/Cu-Al2O3 composites was investigated. The results showed that the addition of Al2O3 could improve the hardness of the composites and had little effect on the density and electrical conductivity. W80/Cu and W80/Cu-Al2O3 composites showed little difference in arc duration and arc energy under different current conditions, but the stability of W80/Cu-Al2O3 composites was higher. The electric current was 30 A and the voltage 30 V, W80/Cu composite material transferred from cathode to anode in the process of the arc erosion, while W80/Cu-Al2O3 material transferred from the anode to cathode. With the addition of Al2O3, the loss of the material and the splashing decreased, and the surface of the composite became smoother after arc erosion.
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