Published on October 2019 | NanoComposite

Microstructure studies of AA7150-hBN nanocomposites fabricated by ultrasonic assisted stir casting

For two decades, the Al7XXX series alloys have been playing an extensive role in aerospace and automotive industrial applications due their excellent properties such as toughness, fatigue, strength and low density. However, the current scenario for all these applications, there is a significant improvement at service loads as well as wear resistance properties at elevated temperatures. The main focus of the current investigation is with the microstructure analysis of AA7150-hexagonal Boron Nitride (hBN) nanocomposites which are fabricated through ultrasonic assisted double stir casting process. The Scanning Electron Microscope and Optical Microscope were used to study the particle distribution, grain refinement of the monolithic AA7150 alloy, nanocomposites. The fractured surfaces and wear surfaces were also studied the influence of applied load as well as hBN weight percentage on nanocomposites and compared with base matrix.