摘要
采用搅拌铸造法制备出B4Cp/ZM5和(SiCp+B4Cp)/ZM5复合材料。复合材料显微组织观察显示,增强颗粒较均匀分布于基体中。复合材料的硬度比基体ZM5镁合金有较明显提高,复合材料的抗拉强度相比ZM5镁合金也有提高,其中(7.5%B4Cp+7.5%SiCp)/ZM5复合材料的抗拉强度相比基体合金ZM5提高了约49%。复合材料的耐磨性能要明显高于基体ZM5镁合金,ZM5镁合金的摩擦系数低于(7.5%B4Cp+7.5%SiCp)/ZM5复合材料。
B4CpZM5 and（SiCp ＋ B4Cp）/ZM5 composites are prepared by stirring casting. The microstructures of the composites reveal that B4C and SiC particles are well distributed in the matrix. The hardness and the tensile strength of the composites are obviously higher than those of the ZM5 composites, the tensile strength of the（7.5% B4Cp ＋ 7.5% SiCp/ZM5 composites increase 49% compared to the ZM5 matrix. It is found that in the wear testing of mating part with GCr15, the wear resistance of composites are obviously higher than the ZM5 composites, and the friction coefficient of the ZM5 composites are lower than that of the （7.5% B4Cp ＋ 7.5% SiCp）/ZM5 composites.
出处
《铸造技术》
CAS
北大核心
2008年第9期1234-1237,共4页
Foundry Technology
基金
江西省科技厅重大招标项目(CB200201060)
南昌航空大学研究生创新基金(100014315010)
南昌航空大学基金(EC200601043)
关键词
镁基复合材料
搅拌铸造
SiC
B4C颗粒
组织与力学性能
Magnesium matrix composites
Stirring casting
B4C and SiC particles
Microtructures and Mechanical properties
