Optimization of Microstructure and Mechanical Properties of AlN Particle Reinforced Magnesium Matrix Composite
In this paper, the optimization of microstructure and mechanical properties of AIN particle reinforced magnesium composite by controlling the size of powders under varying preparation parameters including ball milling time and ball-milling speed was investigated.In addition, the relationship between the relative density and the sintering temperature of composites was also discussed.The results show that the ball-milling rotate speed of 400 r/min, ball-milling time of 8 h and ball-to-powder ratio of 10:1 were the optimal values.Meantime, the best mechanical properties as well as the highest relative density of composites were reached when the addition of 6 wt.% reinforcement and sintering temperature at 620 C.The compressive strength and bending strength of composites are 217 MPa and 207 MPa respectively, which increased by 79.2 % and 91.12 % compared with matrix alloy.And the reinforcement particles are uniformly distributed in the matrix alloy.Finally, the mechanism of the mechanical properties for composite was further discussed.
Powder metallurgy Magnesium matrix composite Microstructure Mechanical property Relative density
Yong Wang Kaiming Cheng Jixue Zhou Yuansheng Yang
Shandong Key Laboratory for High Strength Lightweight Metallic Materials, Advanced Materials Institu Shandong Key Laboratory for High Strength Lightweight Metallic Materials, Advanced Materials Institu
国内会议
长沙
英文
220-227
2016-11-11（万方平台首次上网日期，不代表论文的发表时间）