The microstructures and properties of 2014 aluminium alloy, which is treated by different solution ageing technologies and used for racing bicycle's chain bar, were analysed by means of electron probe, mm2000 abrasion tester and so on 摘要通過采用不同的鋁合金固溶、時效處理工藝,利用電子探針、mm2000磨損試驗機等測試手段,對賽車鏈輪用2014鋁合金的組織性能進行了分析研究。