【摘要】 通过采用不同的铝合金固溶、时效处理工艺,利用电子探针、MM2000磨损试验机等测试手段,对赛车链轮用2014铝合金的组织性能进行了分析研究。结果表明,2014铝合金存在的相较为复杂,主要有θ相、W相和S相等。经500℃固溶和165℃时效处理后,其合金相分布细小、均匀,力学性能较高,磨损时,在出现了犁沟的同时,还存在粘着剥落坑,磨痕最浅,耐磨性提高。更多还原

【Abstract】 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. Results show that solution treated 2014 aluminium alloys have more complicated phases, including 9 phase, W phase and S phase. The 2014 aluminium alloy treated by 500℃ solution and 165℃ ageing has fine alloy phases distributing equably, higher mechanical properties, thus the wear resistance is improved.更多还原