Abstract
Aluminium alloy strengthened with the ceramic particle is widely utilized for numerous engineering usages owing to its less weight, and superior mechanical and tribological behavior. The purpose of this research is to manufacture AA6063-Nano AlN composites via stir casting (SC) process and to examine the mechanical, tribological, electrical, and thermal and CNC drilling behavior. Nano AlN was mixed with AA6063 at 4, 8, and 12 wt.%. The occurrence and dispersal of Nano AlN particles in AA6063 matrix were inspected via Scanning Electron Microscope (SEM). The density and porosity were explored. The mechanical studies on microhardness, tensile strength and yield strength, flexural strength, and compressive strength have been done. SEM fractographic examination was made on the tensile fracture samples. The thermal conductivity, electrical resistivity and electrical conductivity, and salt spray corrosion analysis were made on the produced composites. The tribological behavior of the composites was studied using numerous parameters, reinforcement wt.%, load (L), sliding velocity (SV), and sliding distance (SD). The worn surface examination was done via SEM. The CNC drilling behavior was done at different parameter speed (S), feed (F), and depth of cut (DOC). Experiments were carried out according to the L9 orthogonal array (OA). Optimal process parameter to attain higher material removal rate (MRR) and least surface roughness (SR) was identified via Grey Relational Analysis (GRA). ANOVA outcomes revealed that feed rate is the foremost noteworthy parameter (45.89%) influencing MRR and SR.
Highlights
Nowadays, metal matrix composites (MMC) reinforced with ceramics have progressed as noteworthy focuses despite their progressive usages equivalent to the traditional alloys.Because of their excellent properties, MMCs are largely utilized for different applications than traditional alloys [1]
Ashok Kumar et al [15] explored the tribological behavior of AlN strengthened AA6061 composite and the results showed that a raise in AlN particles rises the wear opposition
Mahesh Kumar et al [17] analyzed the mechanical properties of AA7079–AlN composites prepared via stir casting (SC) route and stated that an increase in AlN wt.% enhances the properties of the composites
Summary
Metal matrix composites (MMC) reinforced with ceramics have progressed as noteworthy focuses despite their progressive usages equivalent to the traditional alloys.Because of their excellent properties, MMCs are largely utilized for different applications than traditional alloys [1]. Numerous engineering components need good strength, hardness, and wear and corrosion resistance materials with less weight Despite this intention, aluminium is mixed with harder ceramic particles via a liquid metallurgy process to manufacture AMCs [6]. Zhao et al [16] manufactured AA6061-AlN composites by SC process and studied the mechanical behavior, and the outcomes explored that the inclusion of reinforcement particles improves the properties. Fale et al [18] explored the tensile, compressive, and wear behavior of Al-AlN composites prepared via ex situ process and stated that inclusions of AlN particles enhance the compressive and tensile strength and increase the wear resistance. Radhika and Raghu [21] studied the tensile strength; hardness and wear behavior of AlN strengthened LM13 composite and indicated that the inclusion of AlN particles enhances the properties of the composites significantly. Yahya Altunpak et al [26] explored the drilling characteristics of aluminium composites, and the outcomes showed that the feed rate is the most substantial one to attain the least surface roughness
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