Tribological characteristics of TiO2particles reinforced aluminum nanocomposites produced via liquid metallurgy techniques with ultrasonic vibrator

초록

Composite materials have variety of new potential usage in various technological areas such as aerospace, automobile, energy, medicine, and chemical industry. In this work, 0, 1, 3, and 5 weight percentages of TiO2 particles were incorporated into the 6063 aluminum alloy by using the liquid metallurgy techniques with ultrasonic vibrator. Scanning Electron Microscopy (SEM) was used to analyze the even dispersion or distribution of elements in composites. Characterization of mechanical properties confirms the particles added increases the hardness of the composites due to nano sized particles. The highest tensile stress was obtained by 5 wt. % of TiO2 particles. It was exposed that the presence of TiO2 reinforcement led to significant enhancement of strength of the material without sacrificing AA6063 ductility. The wear rate enhance with rising to in load and dependent upon TiO2 occurrence in the AA6063. With the composites tested and the AA6063-5 wt. % TiO2 exhibited superior wear resistance. © 2020 Author(s).