Numerical simulation of linear reciprocating wear mechanism of hybrid aluminum metal matrix composite using finite element method

Abstract

This work aims to analyze the wear properties of the hybrid aluminum metal matrix composites (HAMMCs) using finite element analysis (FEA). A dry sliding linear reciprocating wear model is analyzed using ANSYS 19.1. Aluminum 7075 alloy and Hybrid aluminum metal matrix composite reinforced with ZrB2 (1, 3, and 5wt.%) and fly ash (2wt.%) is taken as sample material. A steel ball (EN 52100) is utilized as counterpart in the study of dry sliding wear properties. The deformation of the steel ball during the wear process is assumed as negligible. Under various circumstances, a 3D point-to-surface connection is built to analyze the dry sliding wear process. The wear depth, contact pressure and wear volume are analyzed using finite element analysis. The analytical results are compared with the experimental results with the help of ANSYS to analyze the process parameters. The ANOVA analysis is employed for optimization, which exhibits that the load had the greatest impact on the material's wear rate, followed by the material's composition and temperature. The wear depth, wear rate and contact pressure at optimum input parameters for the HAMMCs are 0.47µm, 11.31×10-6 mm3/Nm and 0.33MPa respectively. The Simulated results support the experimental results, and the average error is 9.82%.

Fabrication and investigation of microstructural, mechanical and wear properties of in situ ZrB2/fly ash/AA7075 hybrid composite

“…The impact of nano ZrB 2 on Brinell hardness of the HAMMCs is already discussed in section 3.3 and is depicted in figure 7. In the past research work it is already discussed that, the wear properties is depends on the hardness of the material [21,22]. Adding harder and stronger reinforcing particles, like ceramic particles or metal carbides, increases the overall hardness and strength of the composite material.…”