B4C/铝基复合材料的制备与性能  

Preparation and Properties of B4C/Al Composites

作　　者：牛志鹏 Niu Zhipeng(Shijiazhuang Aircraft Industry Co.,Ltd.)

机构地区：[1]石家庄飞机工业有限责任公司

出　　处：《特种铸造及有色合金》2020年第12期1396-1399,共4页Special Casting & Nonferrous Alloys

摘　　要：以A356铝合金作为基体,采用机械搅拌的方法在800℃、Ar气保护的条件下,制备了B4C/A356铝基复合材料。研究了B4C加入量对A356铝基合材料性能的影响。通过力学性能试验、显微组织检验、摩擦磨损性能测试等方法对材料的性能进行了表征。结果表明,B4C的加入量为6%时,复合材料性能达到最佳,抗拉强度提高了17%,硬度提高了34%,磨损率降低了34%。B4C/Al matrix composites were prepare at 800℃by mechanical stirring with Ar protection and A356 aluminum alloys as matrix.The effects of B4C addition on properties of composites were analyzed.The properties were characterized through the mechanical property experiments,microstructure observation,friction and wear performance tests.The results indicate that the performance of compositesis reaches the satisfied effect with B4C content of 6%,where the tensile strength and hardness are increased by 17%,34%and wear rate is decreased by 34%.

关 键 词：B4C 复合材料 力学性能 摩擦磨损 

分 类 号：TB331[一般工业技术—材料科学与工程] TG146.21[金属学及工艺—金属材料]