Performance Evaluation and Multidoped Composite Conditioned of A5-type/10%Ti-Sn Alloy: Processing and Properties

The need to improve the mechanical and electrochemical performance of aluminum alloy for extended application is the motivation behind this present work which is the inoculation of TiO₂/SnO₂ composite particulates on A500 by stir casting route. The effect of Ti/Sn on A500 aluminum series on the properties and microstructure of the produced alloy were investigated. The TiO₂/SnO₂ was varied from 5 to 10 wt.%. The microstructural properties of these sequence alloys were investigated using scanning electron microscopy coupled with energy dispersive spectroscopy, and X-ray diffraction. The corrosion degradation properties in 3.65% NaCl solution were studied using linear potentiodynamic polarization technique. The wear and hardness of the composite-induced aluminum alloy were measured with dry abrasive MTR-300 testers and high diamond microhardness tester, respectively. The results showed that the average hardness value of 42.56 and 65.5 HV and wear loss of 1.5 and 0.5 g were obtained for the 0% and 10 wt.% TiO₂/SnO₂ in A500 series. Hence, the addition of TiO₂·SnO₂ led to the precipitation and modification of complex intermetallic particles like Al₂SnTiO and AlSiSn which also indicate a fairly good interfacial interaction. This outcome has established that up to 10 wt.% particulate on A500 aluminum can be used in enhancing the tribology, microhardness, and corrosion mitigation of aluminum alloy.