Influence of Composite Matrix on Compressive Properties of Al 2 O 3 p/40Cr Steel Based Spherical Network Architecture Composites

Author of the article:WEI Shaosheng 1,2 , GONG Wenhao 1 , ZHANG Xipeng 1 , LU Dehong 1

Author's Workplace：1. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; 2. Department of Mechanical Engineering, Yunnan Vocational College of Mechanical and Electrical Technology, Kunming 650203, China

Key Words： composite matrix; adjusting; network architecture composite; compression mechanical properties

Abstract：The influenceof the composite zone matrix on the compression properties of Al 2 O 3 p/40Cr steel network architecture composites was studied by adjusting the matrix withmetallic powders. The results show that the compressive yield strength, compressive strength and fracture strain of the Fe320 adjustedarchitecture composite increased by 26.0%, 25.4% and 21.3%, respectively, compared with the reduced iron powder adjustedarchitecture composite. The reason is that  Fe320 powder increases the content of alloying elements such as Ni in the composite matrix, while iron powder slightly reduces the content of alloying elements in the composite matrix, so Fe320 powder strengthens the composite matrix. At the same time, in the spherical network composite architecture, the cracks propagate vertically inside the composite zone, and the matrix zone of the architecture composites obviously hinders crack propagation. Therefore, the combination of architecture structure and matrix strengthening in the composite zone improves the compressive properties of architecture composites.