论文部分内容阅读
采用水冷钢模激光合金熔炼炉制备了以初生W树枝晶为增强相、以W_2Ni_3Si三元金属硅化物为基体的金属硅化物“原位”耐磨复合材料,分别在室温干滑动磨损及600℃高温滑动磨损条件下测试了上述W/W_2Ni_3Si金属硅化物“原位”增强耐磨复合材料的耐磨性,并讨论了其磨损机理,结果表明,上述金属硅化物耐磨复合材料在室温干滑动磨损和高温滑动磨损条件下均具有优异的耐磨性能。
The W silicide “in-situ” wear-resistant composites with W twins as the matrix were prepared by using primary W-dendrite as the reinforcing phase and water-cooled steel mold laser alloy smelting furnace. The wear resistance of W / W_2Ni_3Si superalloy “in-situ” wear-resistant composites was tested under high temperature sliding wear conditions. The wear mechanism was also discussed. The results show that the superalloy superalloy composites slide dry at room temperature Wear and high temperature sliding wear conditions have excellent wear resistance.