采用激光熔化/连续沉积工艺制备出以Cr13Ni5Si2三元金属硅化物为初生相、以γ-Ni基固溶体为连续增韧相(基体)的三元金属硅化物耐磨复合材料(Cr13Ni5Si2/γ).在高温滑动磨损条件下测试了Cr13Ni5Si2/γ复合材料的耐磨性能随温度的变化规律,并讨论了其磨损机理.结果表明,由于Cr13Ni5Si2三元金属硅化物具有原子结合力强和硬度-温度关系反常等特点,且Cr13Ni5Si2/γ复合材料具有优良的强韧性配合,以及Cr13Ni5Si2/γ复合材料在高温磨损过程中磨损表面能够形成转移覆盖层,Cr13Ni5Si2/γ材料在高温滑动磨损条件下具有非常优异的耐磨性能,较低的磨损温度敏感性和反常的磨损-温度关系.韧性基体γ-Ni的加入使Cr13Ni5Si2三元金属硅化物在600℃高温下滑动耐磨性能提高了3倍.
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