对地铁列车车体用6005A铝合金进行了在线挤压淬火正交实验和透射电镜分析,研究了挤压温度、挤玉速度、淬火方式对合金力学性能的影响.结果表明:淬火方式对合金性能的影响最大,水淬可使合金获得高的力学性能;提高挤压温度和挤压速度也可在一定程度上提高合金力学性能.透射电镜分析表明,在线挤压淬火工艺对合金力学性能的影响实质上与β＇强化相的数量、大小、分布密切相关.
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