A novel (AlN + Si3N4)/Al composite with well-balanced strength and ductility
A novel (AlN + Si3N4)/Al composite with well-balanced strength and ductility
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DOI：
10.1016/j.msea.2018.04.053
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发表时间：
2018-05-30
期刊：
影响因子：
6.4
通讯作者：
Liu, Xiangfa
中科院分区：
文献类型：
--
作者：
Xu, Qingfei;Ma, Xia;Liu, Xiangfa
A novel aluminum matrix composite reinforced by AlN and Si3N4 particles was prepared. It is found that the mean sizes of AlN and Si(3)N(4)particles which distribute uniformly in the alpha-Al matrix, are 50 rim and 0.5 mu m, respectively. The as-extruded composite presents a sheet texture of {110} < 111 > , and the mean size of the alpha-Al grains at the longitudinal section is 1.14 mu m measured by electron backscatter diffraction (EBSD). After T4 heat treatment, the orientation of the alpha-Al grains has evolved and their mean size decreases to 0.63 mu m, which is ascribed to the recrystallization process. The composite exhibits excellent mechanical properties of well-balanced strength and ductility, which can be up to 425 MPa and 15.5%, respectively.
