Study of Mechanical Properties and Wear Resistance of Pure Aluminium / TZ-3Y20A Composites

Abstract

The composite materials studied in this work were pure Aluminium reinforced by TZ-3Y20A particles with different percentage 0,5,10,15 and 20 weight percent. The particle size of TZ-3Y20A was 25µm. The starting materials were examined by SEM, and XRD techniques and optical microscopy. Spherical shape is observed for TZ-3Y20A powder and irregular shape particles were observed for Al powder. SEM photos also, show the shape of, 0%, 5% 10%, 15 and 20% Al-TZ-3Y20A powder milled for 24hr particle powder where the mixed powder became smaller and irregular for percentage of TZ-3Y20A powder increasing. The composite materials were investigated by hardness test which reveal the increase of hardness as the particles percentage increase. The results show that an increase in ultimate tensile strength in specimen with TZ-3Y20A particles, then a decrease in ultimate tensile strength as the percentage of TZ-3Y20A particles increase. The wear test reveals an increase in wear resistance as TZ-3Y20A particles percentage increase.