高铝锌基合金的摩擦磨损性能与磨损机制

Study on Friction-Wear Properties and Wear Mechanism of High Aluminum Zinc Based Alloy

高铝锌基合金是铜合金和铝合金等高强度磨损件的理想替代材料，虽然人们已经就其耐磨性能进行了一些研究，但对这种合金更全面的摩擦学性能研究，尤其是有关它的磨损机理之研究却还是一个尚未深入开展的课题。为了对合理选用高铝锌基合金材料提供科学依据，在干摩擦和３０＃机械油润滑条件下，对高铝锌基合金同材质摩擦副及其与４５＃钢配副的摩擦磨损性能在ＳＲＶ滑动摩擦磨损试验机和Ｍ２００磨损试验机上进行了考察，并且利用俄歇电子能谱仪、扫描电子显微镜和Ｔａｌｙｓｕｒｆ５Ｐ－１２０形貌检测系统等分析和检测了磨损表面的组成变化、形貌和磨痕特征，提出了ＺＡ２７合金在不同工况下的磨损机制．

The high aluminum zinc based alloy ZA27 is a good substitute material for highstrength anti-friction copper alloys and aluminum alloys.Though,the study on wear property has afew reports,the tribology property of ZA27 alloy,especially its wear mechanism has not beendeeply researched.For purpose of providing scientific basis for selecting reasonably high aluminumzinc based alloy material.The friction and wear properties of ZA27 alloy which coupled withthemseves and coupled with 45 steel have been ivestigated by SRV sliding friction and wear testingmachine and M-200 tvear testing machine under dry friction and 30# mechanical oil lubrication. The composition changes,morphology characteristic of the wear scar of ZA27 alloy were analyzedand determined with Auger electron spectrometer(AES),scanning electron microscopy(SEM)andTalysurf 5P-120 morphology determination system. The wear mechanism is proposed underdifferent conditions.