大尺寸Nano-SiCp/AZ91D镁基复合材料的组织及其力学性能

来源 :The 11th China-Japan joint conference on Composite Materials | 被引量 : 0次 | 上传用户:sunvoo
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  采用超声波辅助搅拌铸造的方法,制备了体积分数为1%的纳米SiCp/AZ91D镁基复合材料的大尺寸铸锭。对其不同部位的组织进行观察发现,大尺寸铸锭外侧纳米颗粒分布相对内侧更为均匀,并且,不同部位的晶粒尺寸存在显著差异,铸态复合材料外侧上部晶粒相对内侧下部晶粒更为细小。复合材料不同位置颗粒分稚情况存在较大差异,部分位置可以观察到明显的团聚现象。力学性能测试结果表明:铸态复合材料外侧中部的力学性能最优,并对铸态复合材料的强化机制进行了探讨。
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