Effect of Pressureless in Filtration Process on Microstructures and Mechanical Properties of Al2O3/Al-Mg-Si Composites
ZANG Hengbo1,2, QIAO Jing3
1 The First Military Agency of the Naval Armaments Department in Harbin,Harbin 150060,China 2 School of Coast Guard, Navy Aviation University, Yantai 264001, China 3 School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150006,China
Abstract: Al2O3/Al-Mg-Si composites was prepared by pressureless infiltration method. Based on the orthogonal test design, effect of process para-meters, such as infiltration temperature, infiltration time and particle size of reinforcement on the microstructure and mechanical properties of the composites were systematically studied. The microstructure analysis results show that the Al2O3 particles in the composite are evenly distributed in the matrix, and the interfacial reaction product MgAl2O4 exists in the composite. The analysis results of orthogonal design factors show that the maximum hardness of the composites in the orthogonal experimental group is 333.9 MPa, and the maximum bending strength is 317.0 MPa. The size of the reinforcement particle has the greatest influence on the hardness of the composite, followed by the infiltration time and the infiltration temperature. The infiltration time has the greatest influence on the flexural strength of the composite, followed by the infiltration temperature and the reinforcement particle size.
臧恒波, 乔菁. 无压浸渗工艺对Al2O3/Al-Mg-Si复合材料微观组织和力学性能的影响[J]. 材料导报, 2020, 34(Z2): 371-375.
ZANG Hengbo, QIAO Jing. Effect of Pressureless in Filtration Process on Microstructures and Mechanical Properties of Al2O3/Al-Mg-Si Composites. Materials Reports, 2020, 34(Z2): 371-375.
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2020, Vol. 34 
