Mechanical behavior of magnesium hybrid composites fabricated through powder metallurgy

Abstract

With a rapid improvement in the field of automotive and other newlineindustrial applications, magnesium with its alloy composite plays a very newlineessential role to design a material. A metal such as aluminium, titanium are newlinelight weight component that are mostly preferred to fabricate the component newlinein early years. But nowadays, magnesium is extremely accepted because it is newline35% lighter than aluminium and 50% lighter than titanium. Due to its reason newlineof weight reduction, magnesium is highly used in various applications such as newlineautomotive, defense, aeronautical, bio-medical etc. The composite material of newlinemetal matrix composite (MMC) is effectively used to prepare powder with newlineincluding two phase of particulates (i.e.,) matrix and reinforcement phase. newlineHere, AZ61 magnesium alloy is considered as matrix and aluminium oxide newline(Al2O3), molybdenum disulphide (MoS2) are utilized as reinforcement. The newlinereinforcement of nanoparticles with different volume weight percentage is newlineemployed to incorporate with AZ61 alloy, as they show various resultant newlinevalues in terms of the measuring the performance such as fractography and wear newlinebehavior. The hybrid composites namely AZ61, AZ61 plus 2% nano Al2O3, newlineAZ61 plus 2% nano MoS2, AZ61 plus 2% nano Al2O3 plus 2% nano MoS2 newlineand AZ61 plus 3% nano Al2O3 plus 3% nano MoS2 have been prepared with newlinethe help of conventional powder metallurgy process. In this research article, it is newlinefully based on preparing an effective composite from metal powder. The process newlineinvolved to prepare the composites are milling, compacting and sintering. Then newlinethe sintered product is measured by calculating the strength and hardness value newlinein order to prove their effectiveness. Moreover, SEM and EDX images are newlineillustrated to show microstructure behavior of the prepared samples. newline