Numerical Simulations of As-Extruded Mg Matrix Composites Interpenetrated by Metal Reinforcement

1st International Workshop on Materials Science and Mechanical Engineering

材料科学;机械制造

Wang, H.Y.^1 ; Wang, S.R.^1 ; Yang, X.F.^1 ; Li, P.^1

School of Mechanical Engineering, University of Jinan, Jinan

250022, China^1

关键词: Effective stress;    Extrusion chambers;    Extrusion process;    Interfacial bonding;    Magnesium composite;    Mg matrix composites;    Stainless steel wires;    Three-dimensional braided;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/281/1/012019/pdf
DOI  :  10.1088/1757-899X/281/1/012019

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The interpenetrating magnesium composites reinforced by three-dimensional braided stainless steel wire reinforcement were fabricated and investigated. The extrusion processes of the composites in different conditions were carried out and simulated by finite element method using the DEFORM-3D software. The results show that the matrix and reinforcement of the composites form a good interfacial bonding and the grains were refined by extrusion and the influence of reinforcement, which are in accordance with the enhanced strength and degraded plasticity. The combined quality between the matrix and reinforcement can be strengthened in extrusion chamber where occurred large strain and suffered intense stress, and the effective stress of the material increases continuously with the increase in extrusion ratio and the decrease in extrusion speed until it reaches a stable value.