粉末冶金及热挤压制备SiC_p/铝基复合材料的磨损性能  

Friction and Wear Properties of SiC_p Reinforced Aluminum Matrix Composites Fabricated by Powder Metallurgy and Hot Extrusion

作　　者：纪兴华 吕昕晖[2] 陈刚 杜之明[4] 李倩倩[4] di Xinghua;Lü Xinhui;Chen Gang;Du Zhiming;Li Qianqian(School of Materials Science and Engineering,Xi'an University of Technology;School of Materials Science and Engineering,Harbin Institute of Technology;School of Materials Science and Engineering,Harbin Institute of Technology (Weihai);Key Laboratory of Powder Metallurgy in Advanced Manufacturing,Laiwu Vocational and Technical College)

机构地区：[1]西安理工大学材料科学与工程学院 [2]莱芜职业技术学院莱芜市粉末冶金先进制造重点实验室 [3]哈尔滨工业大学(威海)材料科学与工程学院 [4]哈尔滨工业大学材料科学与工程学院

出　　处：《特种铸造及有色合金》2019年第1期67-70,共4页Special Casting & Nonferrous Alloys

基　　金：莱芜市高新区发展项目(20161203);校教师科研基金资助项目(2016jc05)

摘　　要：通过粉末冶金法制备了SiC_p增强铝基复合材料并对其进行了热挤压变形处理,研究了不同热挤压参数对SiC_p/铝基复合材料磨损性能的影响。结果表明,SiC_p颗粒分布的均匀性对复合材料磨损性能影响较大,热挤压SiC_p/铝基复合材料的磨损量随SiC_p含量的增加先减小后增大;磨损速度及磨损载荷的增大使材料的磨损速率增加。Sn的添加能够提高SiC_p/铝基复合材料的耐磨性能,但Sn含量的变化对热挤压SiC_p/铝基复合材料的磨损性能影响不大。SiCpreinforced aluminum matrix composites were prepared by means of powder metallurgy and hot extrusion deformation,and the friction and wear properties of the composites prepared were investigated.The results show that the homogeneity of SiCpparticle has great influence on the wear properties of the composites.The wear loss of the composites is increased firstly and then decreased with the increase of the SiCpcontent.With increasing in the wear rate and the wear loading,the wearing rate of the composites is increased.The wear properties of the SiCpreinforced aluminum matrix composite can be improved with Sn addition,however,Sn addition change can little affect the wear behavior of the hot extruded composites.

关 键 词：SiCp/铝基复合材料 热挤压变形 摩擦磨损性能 

分 类 号：TG376[金属学及工艺—金属压力加工] TB331[一般工业技术—材料科学与工程]