利用金相显微镜和磨擦磨损试验机研究了新型稀土变质剂Pr2(CO3)3盐在不同含量、保温时间以及浇铸温度等条件下对ZL107铝合金变质作用.研究结果表明:稀土Pr2(CO3)3盐含量为3.0%时其变质效果最佳;浇铸温度对其变质效果影响不大;Pr2(CO3)3具有较长的变质失效时间.此外,还对比分析了变质前后合金的耐磨性能.
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