INVESTIGATION OF WEAR AND MICROSTRUCTURAL PROPERTIES OF A356/ TiC COMPOSITES FABRICATED BY FSP

Abstract

Al–Si alloys are commonly utilized in the production of automobile components, including pistons and cylinders. Although this alloy offers desirable features for usage in pistons, several microstructural characteristics, such as the presence of needle-like silicones or dendrites, impair the performance of the parts produced. In this study, TiC reinforcement particulates were employed to generate matrix composites via friction stir processing (FSP) to increase the wear resistance of Al–Si alloys. The microstructural characteristics of the nugget zone of FSPed specimens were studied. The results reveal that the FSP improves the base alloy microstructural characteristics. The particle distribution and quality of the bonding between the TiC particles and the aluminum matrix were investigated using SEM. The hardness and wear tests were performed to establish the mechanical and wear properties of the particle reinforced composites. The hardness test results showed that the produced composites had a hardness of 144[Formula: see text]HV, which shows a growth of almost 220% compared to the base metal. The pin-on-disc wear test was carried out with sliding speeds of 1 and 2[Formula: see text]m/s, and loads of 5, 10 and 20[Formula: see text]N. The wear test results showed that the wear resistance of the produced particle-reinforced composite compared to the base alloy was improved by about 540%.

The effect of reinforcement particles weight percentage on the mechanical properties and plastic flow behaviour of aluminum alloy 7075 matrix material

“…The aluminum based metal matrix composite has various applications in defence, aerospace, automobile, underwater technology, electrical vehicle, etc. due to the requirement of lightweight material and advanced properties [1][2][3]. The aluminum 7075 based metal matrix is used mostly in Boeing 747.…”

Microstructures and properties of copper matrix composite wires reinforced with Ti2SnC particles

“…However, the softness and low wear resistance of copper can hinder its application in many cases, especially at high temperatures, making it difficult to choose the right material for the production of designed parts in specific engineering applications. As reported in other materials, such as aluminium and aluminium alloys [1][2][3][4][5][6][7][8], the main solution to such application challenges is combining the properties of copper with other materials to create a material with desirable properties that are generally known as composites.…”

Preparation of Ti3Si0.8Al0.2C2 Bonded Diamond Composites and Their Friction Properties Coupled with Different Counterfaces

“…Earlier, the authors had successfully fabricated Ti 3 SiC 2 -diamond composites [16], Ti 3 SiC 2 -cBN composites [4], and Ti 3 AlC 2 -cBN composites [17] with 50 wt% of Ti 3 SiC 2 under 4.5 GPa by HPHT. Te high thermal conductivity cBN composites can be synthesized with Al-Si [18][19][20][21] as a binder and diamond as an additive by HPHT [22]. Ti 3 (Al 1−x Si x ) C 2 (x � 0-1) can form a complete solid solution, and the solid solution hardening efect enhances the hardness and corrosion resistance of Ti 3 Al 1−x Si x C 2 [23].…”