Process Optimization and Studies on Mechanical Characteristics of AA2014/Al2O3 Nanocomposites Fabricated Through Ultrasonication Assisted Stir–Squeeze Casting

Gnanavelbabu, A.; Surendran, K.; Kumar, Santosh

doi:10.1007/s40962-021-00634-3

Cited by 26 publications

(12 citation statements)

References 56 publications

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“…The as-cast AZ91D alloy (A), composites (AT, AH), and hybrid composites (ATH, ATTH) were manufactured using stir-squeeze casting with ultrasonic assistance. 15,19,28,34 First, the AZ91D alloy rod was chopped into 40 mm billets, and the needed number of billets were fed into the furnace once the temperature reached 750°C. Meanwhile, reinforcements such as TiN and hBN were weighed and preheated to 300°C for 1 h in the vibratory preheater to eliminate the volatile content.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In situations like these, Ultrasonic Treatment, also known as UST, accomplishes uniform reinforcement dispersion by inducing vigorous cavitation and acoustic streaming using high-intensity ultrasonic vibrations applied to the melt. 28 As a reason, the UST-assisted stir-squeeze casting process is widely utilized to increase the microstructure and mechanical attributes of the composites. 29 However, due to its poor strength in elevated temperatures, Mg alloys are not suitable for several hightemperature applications such as IC engines, cylinder liners, and aerospace bearings.…”

Section: Introductionmentioning

confidence: 99%

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Titanium nitride concentration and coordination effect with hexagonal boron nitride enhancing the reciprocating wear behavior of AZ91D alloy-based composites

Gnanavelbabu

Gowtham

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The influence of TiN hard ceramic concentration and coordination effect of hBN solid lubricant particulates on reciprocating wear and friction behavior of AZ91D alloy-based magnesium matrix composites is investigated in this work. A unique stir-ultrasonication-squeeze casting procedure was employed to fabricate the composites. The fine dispersion of reinforcing particulates in matrix was examined using Optical Microscopy (OM) and Scanning Electron Microscopy (SEM). The X Ray Diffraction (XRD) analysis confirmed the existence of reinforcements in composites and formation of intermetallic phases demonstrating the thermal stability of matrix reinforcement materials. The hardness of fabricated AZ91D/5 wt.% TiN (AT), AZ91D/5 wt.% hBN (AH), AZ91D/5 wt.% TiN/5 wt.% hBN (ATH), and AZ91D/10 wt.% TiN/5 wt.% hBN (ATTH) composites were increased by 18.37%, 8.14%, 11.68%, and 25.2% in comparison with as-cast alloy “A”. The tribo-properties of single and dual ceramic particles reinforced materials were investigated using a linear reciprocating tribometer at an unchanged sliding distance of 200 mm and stroke length of 10 mm under varied loads (7.5, 15, 22.5, and 30 N), reciprocating frequencies (2, 4, 6, and 8 Hz), and temperature conditions (50°C, 100°C, 150°C, and 200°C). Compared to material “A,”“ATTH” composite performs well in terms of wear behavior, with performance increasing by 42.63% and 54.33% respectively, under ambient and enhanced conditions. At low load, increased frequency accelerates material removal from the plate’s surface due to direct abrasion and plowing action caused by rough asperities on the counterface. The increase in applied load under high-frequency settings increases the pin’s contact pressure with the sample surface, which raises the temperature and causes the shallow grooves to severe delamination. At increased temperatures, the wear characteristics of intense oxidation, plastic deformation, and significant delamination were discovered on manufactured materials.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Titanium nitride concentration and coordination effect with hexagonal boron nitride enhancing the reciprocating wear behavior of AZ91D alloy-based composites

Gnanavelbabu

Gowtham

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…In generally aluminium alloy hybrid composites are prepared by stir casting [22,23], squeeze casting [24,25] and powder metallurgy [26,27]. Stir casting has a number of advantages, including being trouble-free, supple, and affordable, as well as producing multifunctional, bulkmanufacturing, and contour composite components that are free of dangerous reinforcing particles.…”

Section: Introductionmentioning

confidence: 99%

Impact of AlN-SiC Nanoparticle Reinforcement on the Mechanical Behavior of Al 6061-Based Hybrid Composite Developed by the Stir Casting Route

Kaliappan¹,

Shanmugam²,

Johnson

et al. 2022

Advances in Materials Science and Engineering

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The enhancement of composites’ mechanical characteristics (tensile, compressive, and hardness) is a constant demand for technological advancement. The stir casting process is used to make the hybrid aluminium alloy metal matrix composites Al 6061-SiC-AlN in our present study. To create mechanical qualities such as tensile, compressive, and hardness, silicon carbide and aluminium nitride (both 3% and 6%) were utilized as the reinforcement. The tensile strength, compressive strength, and hardness of the Al 6061-SiC-AlN hybrid composites samples were determined. The tensile, compressive, and hardness parameters of Al 6061-SiC-AlN hybrid composites are estimated and evaluated to those of the matrix Al 6061 alloy. With the inclusion of silicon carbide and AlN nanoparticles, the tensile strength, compressive strength, and hardness increased from 328 to 385 MPa, 145 to 178 Mpa, and 302 to 724 VHN, respectively.

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“…Depending on the type, size, and morphology of the reinforcement, the AMCs are manufactured using liquid state processing methods such as stir casting, squeeze casting, spray deposition, and compo casting, as well as solid state processing methods such as powder metallurgy and mechanical alloying [2]. Liquid state processing is one of the most effective * E-mail: tvelan10@gmail.com methods due to its ease of implementation, simplicity, and productivity [3]. Due to the low density of reinforcement particles in the matrix, most exsitu AMCs have low matrix-reinforcement bonding strength.…”

Section: Introductionmentioning

confidence: 99%

Fabrication, microstructure, and machinability of aluminum metal-matrix composites

Kathiravan¹,

Thanigaivelan

Suresh³

2022

Materials Science-Poland

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Today, researchers across the world focus on sustainable products, and, accordingly, it is now imperative to develop sustainable MMCs. In line with this, ongoing experimental work aims to fabricate aluminum 6061 MMC with ground granulated blast furnace slag (GGBS) and study the micro-structural and machinability characteristics. A liquid state stir casting setup is used to melt aluminum 6061 alloy and reinforced with 2.5 wt.%, 5.0 wt.%, and 7.5 wt.% of GGBS. X-ray diffraction (XRD) studies were used to identify the chemical elements that were present in the fabricated samples. In order to observe the formation of any secondary elements, energy-dispersive X-ray spectroscopy and scanning electron microscopy (SEM) were utilized on the cast composites. Through the milling process, the influence of the GGBS reinforcement composition on the surface roughness (SR) and material removal rate (MRR) of aluminum 6061 MMC was examined, considering the parameters of spindle speed, feed rate, depth of cut, and reinforcement composition percentage. The L9 orthogonal array (OA) was used to investigate the results of the experiments, and the Taguchi technique was used to optimize the process. The best MRR value was produced by the feed rate (B3) of 260 mm3/min and the depth of cut (C3) of 0.75 mm. The study ascertained that the lower SR value is attained corresponding to a spindle speed of 1,250 rpm, a feed rate of 220 mm3/min, a depth of cut of 0.25 mm, and a reinforcement composition percentage of Al 6061 with 5% GGBS.

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Process Optimization and Studies on Mechanical Characteristics of AA2014/Al2O3 Nanocomposites Fabricated Through Ultrasonication Assisted Stir–Squeeze Casting

Cited by 26 publications

References 56 publications

Titanium nitride concentration and coordination effect with hexagonal boron nitride enhancing the reciprocating wear behavior of AZ91D alloy-based composites

Titanium nitride concentration and coordination effect with hexagonal boron nitride enhancing the reciprocating wear behavior of AZ91D alloy-based composites

Impact of AlN-SiC Nanoparticle Reinforcement on the Mechanical Behavior of Al 6061-Based Hybrid Composite Developed by the Stir Casting Route

Fabrication, microstructure, and machinability of aluminum metal-matrix composites

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