Hard Titanium Carbide Particles Impact on the Microstructure, Mechanical and Wear Behavior of Al2014 Alloy Composites
摘要
The present study is dedicated to examining the mechanical, wear, and microstructural characteristics of Al2014 doped with titanium carbide (TiC) particles of micron size. Using an innovative casting process, the composite material was manufactured. The TiC content was varied between 3 and 12 weight% in this investigation. Microstructural investigations were carried out using a scanning electron microscope (SEM) equipment, and the results showed that the ceramic TiC particles were evenly distributed throughout the Al2014 composites. To analyse the attributes of the Al-based MMCs, the composites were subjected to mechanical testing in accordance with ASTM standards. This testing focused on hardness, tensile strength, yield strength, and percentage elongation. The hardness and ultimate strength of Al2014 alloy increased by 38.4% and 64.5% respectively with additions of 12 wt% of TiC particles. Wear tests with different loads and speeds were performed on Al2014 - TiC composites according to the ASTM G99 standard. This investigation found that the manufactured composites had much improved tensile and yield strengths. It should be noted, however, that the percentage elongation decreases with increasing reinforcement content in the composite. Wear resistance of Al2014 alloy was enhanced by the addition of a higher weight% of TiC. Al2014 alloy is widely used for aerospace applications, the TiC incorporated Al2014 alloy composites can be used for aerospace applications with reduced cross-section area due higher mechanical properties.
Graphical Abstract