Research on the dislocation damping of Mg2Si/Mg–9Al composite materials
Research on the dislocation damping of Mg2Si/Mg–9Al composite materials
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DOI：
10.1016/j.matlet.2006.09.049
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发表时间：
2007-05
影响因子：
3
通讯作者：
L. Liao;Haowei Wang;Xianfeng Li;N. Ma
中科院分区：
文献类型：
--
作者：
L. Liao;Haowei Wang;Xianfeng Li;N. Ma
本文尝试了一种新的思路，即采用较硬的金属化合物Mg_2Si来提高Mg_2Si/Mg-9Al复合材料的阻尼性能。结果表明，Mg 2Si/Mg-9Al复合材料的阻尼性能优于未增强合金。Mg_2Si颗粒经表面改性后，复合材料的阻尼性能得到进一步提高。特别强调了基体-颗粒界面位错密度的增加以及锑的变质对阻尼性能的影响。
A new idea of using a stiffer metallic compound Mg2Si to enhance the damping capacities of Mg2Si/Mg–9Al is successfully attempted. Results show that Mg2Si/Mg–9Al composite materials have better damping capacity than non-reinforced alloy. Damping capacities of composite materials have been improved further after morphology modification of Mg2Si particles. Particular emphasis is placed on the increasing dislocation density around matrix–particulate interface and effect of modification of antimony on damping capacity.