Wear Resistance Study of SiC Particle Reinforced Sintering 2000 Series Aluminum Alloy
Combining the low density of Al and near net-shaping of Powder Metallurgy(PM),PM aluminum alloy is the first choice of lightweight material.Wear is an important failure mode,and PM abrasion proof material has been widely used.Many structural parts need good wear resistance,so the friction and wear properties research of PM aluminum alloy is valuable.In this article,SiC was added into Al-Cu series alloy as reinforcements,using pressing,sintering and heat treatment as the preparing process,with iron based PM specimens as comparison.Frictional wear test,metallograph,particle size analysis and SEM morphology are used to analyze the wear resistance of specimens.Friction coefficient and abrasion loss were tested when the specimens and 40Cr steel form the friction pairs materials.The results show that SiC reinforced composites have better wear resistance than iron specimens.With SiC contents growing up,the wear loss decreases first and then increases,which indicates that the additive amount has a critical point.Relatively larger particle of SiC and higher sintering temperature strengthen the wear resistance more.Fewer agglomerates of SiC particles and stronger bonding strength between SiC and matrixare good for wear resistance.Suitable preparation parameters of SiC reinforced aluminum based composites need to be chosen for wear resistant performance.
Abrasive wear 2000 series aluminum Silicon carbide Friction coefficient Abrasion loss
Yan Weiwei Bao Chongxi Chen Zhidong Ruan Jianming
NBTM New Materials Group Co.,Ltd.,8 Jingjiang Road,Ningbo 315191,Zhejiang,China Powder Metallurgy Research Institute,Central South University,932 Lushan South Road,Changsha 410083,
国际会议
北京
英文
989-995
2018-09-16（万方平台首次上网日期，不代表论文的发表时间）