Investigations on properties and tribological behavior of AlMg4.5Mn0.7(AA5083)-MoO₃ composites prepared by stir casting method

Abstract

Molybdenum Trioxide (MoO3) has received extensive consideration as a prospective reinforcement for metal matrix composites (MMCs) to improve the properties. The goal of this work is to fabricate and examine the properties of AA5083-MoO3 composites. AA5083-MoO3 composites by several weight percentages were produced via liquid metallurgy technique. The compositions of the composites are AA5083, AA5083-4wt.%MoO3, AA5083-8wt.%MoO3 and AA5083-12wt.%MoO3. The microstructure inspection was made on the synthesized AA5083-MoO3 composites using Scanning Electron Microscope (SEM). The effect of MoO3 weight percentage on the properties such as density, porosity, mechanical and wear behavior were investigated. The SEM images expose the even dispersion of MoO3 particles with AA5083 matrix. The combination of MoO3 particles enhanced the properties of the composites. The wear behavior was examined via pin on disc apparatus at various process parameters wt.%, load, sliding velocity (V) and sliding distance. Trials were conducted as per L16 orthogonal array (OA). Optimum process parameters to acquire least wear rate and co-efficient of friction (COF) was done by Grey Relational Analysis (GRA). The ANOVA results exposes that wt.% is the major important parameter inducing wear and COF.

Microstructure and Mechanical Characteristics of Stir-Casted AA6351 Alloy and Reinforced with Nanosilicon Carbide Particles

“…In special cases, inhomogeneous scattering is occurred on the processed MMCs by the contemptible wetting during the other processes like powder metallurgy, squeeze casting, and solid-state process. To overcome these issues, stircasting liquefied process is as suitable technique [11].…”

Tribological Behavior of Al/Nanomagnesium/Aluminum Nitride Composite Synthesized through Liquid Metallurgy Technique

“…MMCs are used majorly in air craft, automobile, construction sec-tor, electronics stuffing, thermal controlling apparatus's despite of its better strength, superior elastic modulus, precise stiffness, and thermal and electrical conductivity [3]. MMCs strengthened with ceramics exhibit superior properties like wear and corrosion behavior than the customary alloys [4]. MMCs possess sustainable usages in various engineering sector.…”

Wire Electrical Discharge Machining Characteristics of Al-4.4 Mg-0.7 Mn-0.15 Cr-12 wt.% MoO3 Composites Using Taguchi Technique

“…Concurrently due to bigger self-lubricating contact, MoO 3 improves the composite wear opposition [9]. MoO 3 has arriving widespread deliberation as a potential reinforcement for MMCs to enhance the properties [10]. Stir casting (SC) is an inexpensive method for the production of AMCs [11].…”