铸造2017，Vol.66Issue(8)：859-864,6.
重载对不同工艺Al-Si-Mg-Cu合金摩擦磨损性能的影响
Effect of Heavy Load on Friction and Wear Properties of Al-Si-Mg-Cu Alloy Under Different Process Conditions
摘要
Abstract
Microstructure, mechanical properties, friction and wear behavior under overload working condition of Al-Si-Mg-Cu alloy prepared by different process were studied by using of OM, SEM and so on. The results show that micro-alloying, refining modification, heat treatment and their compound process had significant influence on the microstructure and mechanical properties of Al-Si-Mg-Cu alloy. Through the fine grain strengthening, solid solution strengthening and ageing strengthening, the mechanical properties of the alloy were significantly improved and the microstructure uniformity was better. The higher requirements on the wear resistance of Al-Si-Mg-Cu alloy were needed under overload working condition. In the high strength alloy prepared by composite process, the Si phase that distributed on the wear surface was broken to absorb part of the energy produced by the overloaded pressure and then was affected by the plastic flow stress to distribute uniformly on the wear surface. The surface hardness of the alloy and the lubrication conditions had been improved indirectly, which caused the wear surface in the abrasive wear or mild adhesive wear mechanism state for a long time. This situation was helpful to improving the friction and wear behavior of the alloy.关键词
Al-Si-Mg-Cu合金/力学性能/显微组织/摩擦行为/磨损机理Key words
Al-Si-Mg-Cu alloy/mechanical properties/microstructure/friction behavior/wear mechanism分类
矿业与冶金引用本文复制引用
刘光磊,刘乔丹,甄亚辉,马丽,胡万飞,司乃潮..重载对不同工艺Al-Si-Mg-Cu合金摩擦磨损性能的影响[J].铸造,2017,66(8):859-864,6.基金项目
江苏省博士后科研资助计划项目 (1601055C) （1601055C）
江苏大学高级人才科研启动基金项目(14JDG126). （14JDG126）
