An Investigation on the Enhanced Wear Behavior of Ultrasonically Stirred and Cast A356/SiO2np Nanocomposites

Metal matrix nanocomposites (MMNCs) are becoming the materials of choice in a variety engineering and medical applications owing to their exhibiting superior combination targeted properties. Amongst different MMNCs, aluminum-based composites special importance. In many applications, relatively inferior wear property limits use this valued metal practice. However, reinforcing aluminum its alloys by ceramics, carbon allotropes, etc., may circumvent these limitations great extent. present study, alloy A356/SiO2 nanocomposite is fabricated vibration-assisted casting process, wherein varied amount nanosilica, namely, 0.125, 0.25, 0.375 wt.%, have been added melt. The power ultrasonic treatment had influence on microstructure, hardness, Microstructural XRD analyses were performed monolithic composite samples. To evaluate behavior, hardness test pin-on-disk experiment conducted samples under 60, 80, 100 N forces at constant speed 1 m/s sliding distance was from 1000 2000 m. abraded surfaces, debris, EDS analysis used identify mechanisms. having 0.125 wt.% exhibited highest increase reduction both friction coefficient rate 52%, 50%, 68%, respectively. main governing mechanism abrasion, with limited evidence delamination.