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采用真空熔炼炉制备了不同Zn含量的Mg-x%Zn-0.8%Zr(x=2.0,3.0,4.0,4.5)(质量分数,下同)合金,对系列合金的显微组织、力学性能、模拟体液环境下的耐蚀性能以及摩擦磨损行为进行了测试与分析。结果表明:在本研究的系列合金成分范围中,随着Zn含量的增加,Mg-x%Zn-0.8%Zr合金组织细化、强度及耐磨性能提高,但塑性及耐蚀性下降,而且不同Zn含量Mg-x%Zn-0.8%Zr合金在模拟体液环境下的磨损率均高于干摩擦条件下的磨损率,表明模拟体液的腐蚀加速磨损作用大于其润滑减少磨损的作用。
Mg-x% Zn-0.8% Zr (x = 2.0,3.0,4.0,4.5) (mass fraction, the same below) alloys with different content of Zn were prepared by vacuum melting furnace.The microstructure, mechanical properties, The corrosion resistance and friction and wear behavior under simulated body fluid environment were tested and analyzed. The results show that the microstructure, strength and wear resistance of Mg-x% Zn-0.8% Zr alloy increase with the increase of Zn content, but the plasticity and corrosion resistance of the Mg-x% Zn- The wear rates of Mg-x% Zn-0.8% Zr alloy with different Zn contents in simulated body fluid environment were higher than those in dry friction condition, indicating that accelerated corrosion of simulated body fluid is more effective than lubrication to reduce wear.