Optimizing the ultrasonication effect in stir-casting process of aluminum hybrid composite using desirability function approach and artificial neural network

Kamaraj, Logesh; Hariharasakthisudhan, P; Moshi, A. Arul Marcel

doi:10.1177/14644207211025706

Cited by 19 publications

(12 citation statements)

References 38 publications

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“…The TiB 2 modifies the dentritic structure of the aluminium matrix as the TiB 2 particles are located in the inter granular regions. This demonstrates that, as in the traditional approach of preparing composites, the creation of intermediate compounds was largely eliminated [38,39]. Figure 10 depicts the XRD pattern of the…”

Section: Optical Micrograph Characterizationmentioning

confidence: 91%

Experimental investigation and characterization of titanium diboride reinforced AA6063 in-situ composites

Nandakumar¹,

Somasekaran²

2022

Mater. Res. Express

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Aluminum matrix composites have gained interest recently because they are more efficient, lighter, and less expensive. The purpose of this current study was to examine the effects of various casting operating conditions, including stirring temperature, stirring time, and stirring speed, on the casting process. Determining the optimum processing parameters to achieve significant outcomes could be the most daunting problem while casting a specimen. Box-Behnken design based on response surface methods was used to investigate the effects of stir casting factors on the mechanical properties of AA6063 - 4 % TiB2 composites. The response's real value, which includes hardness before heat treatment, hardness after heat treatment, and tensile strength, is reflected in the surface plot created by statistical software. F-ratio is often used in an ANOVA table to examine how operational variables affect properties of the material. Dispersion of the reinforcements mixture has been studied and characterized under scanning electron microscope and x-ray diffraction spectrometer. The optimum temperature, time, and rotational speed were 823.662°C, 15 minutes, and 300 rpm. Composite materials made from aluminium 6063 are extensively used in the fabrication of lightweight aircraft components like ribs and fuselages.

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Section: Optical Micrograph Characterizationmentioning

confidence: 91%

Experimental investigation and characterization of titanium diboride reinforced AA6063 in-situ composites

Nandakumar¹,

Somasekaran²

2022

Mater. Res. Express

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“…The ultrasonication process is very useful in the dispersion of reinforcement in the matrix. [36][37][38][39][40] The use of wetting agents like K 2 TiF 6 , 41 borax, and magnesium 42 will increase the wettability of reinforcement in the matrix. Figure 4 briefs the range of parameters that researchers have used to obtain good microstructure in MMCs.…”

Section: Influence Of Process Parametersmentioning

confidence: 99%

Effect of stir casting parameters and mono/hybrid reinforcements on aluminium metal matrix composite–A review

Rajamurugan

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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Aluminum metal matrix composites are a new class of materials that have gathered more attention from many materialists. Especially, the automotive components like a piston, cylinder block, brake drum, etc., fabricated by different reinforcement, which has exposed better performance over conventional engineering materials. Aluminum composites are generally fabricated by stir casting technique due to simplicity in operation and adaptive to mass or job order production. The paper provides a background for the readers interested in the production of metal matrix composites through stir casting. Based on the literature assessment, the special attentions taken by the researchers to enhance the uniform distribution of particle to avoid agglomeration are discussed. The composite performances mainly depend on the aluminum matrix, particle size, the quantity of reinforcement, preheating temperature of reinforcement, and processing parameters such as stirring speed, stirring time, and wetting agents. The selection of two reinforcements and their suitable parameters for wetting are attaining interest by many researchers and maybe opted as future scope.

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“…The MMNCs have exceptional specific strength, high resistance to wear, good stiffness, good toughness, and high creep/fatigue resistance when compared with the monolithic alloys. 10–13 The improved properties are attributed to the homogenized solid-phase nanoparticles in the matrix. Also, the size effect of nanoparticles enhances the base properties without sacrificing elongation.…”

Section: Introductionmentioning

confidence: 99%

“…The most common cost-effective bulk fabrication methods for synthesizing nanocomposites are as follows: stir casting, ultrasonic-assisted casting, and infiltration casting process. 12,18…”

Section: Introductionmentioning

confidence: 99%

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Effects of simultaneous rotational ultrasonication and vortex-induced casting technique on particle distribution and grain refinement in AA7075/h-BN nanocomposites

Amith¹,

Lakshmanan²

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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A simultaneous rotational ultrasonication with mechanical stirring (RUMS) technique was applied to successfully produce aluminum alloy/hexagonal boron nitride (AA7075/h-BN) metal matrix nanocomposites (MMNCs). The rotating ultrasonic probe with a mechanical stirring impeller arrangement was employed in the casting process. The ultrasonic probe with 20 kHz frequency, 2.5 kW power, and 400 rpm rotational speed was used for the experimental work. The five variations of MMNCs (AA7075 – 0 wt.%, 0.15 wt.%, 0.3 wt.%, 0.6 wt.% and 1.0 wt% h-BN) were fabricated by RUMS process. The MMNCs were solutionized and artificially aged as per ASTM T6 heat-treatment conditions. The tensile test, Vickers microhardness, and porosity measurements were conducted. The tensile strength of RUMS-fabricated AA7075/0.6 wt% h-BN MMNC was improved by 29.46% for as-cast, and 15.90% for T6 heat-treated condition when compared with AA7075/0 wt.% h-BN as-cast and T6 heat-treated MMNCs, respectively. The microstructures and morphologies of the fractured surfaces were evaluated through optical microscopy and SEM. The elemental composition of the MMNCs was studied using SEM-EDS. The XRD was used to investigate the phase composition of the MMNCs. The dislocation density and the interfacial bonding between the matrix and reinforcements were reviewed by TEM. The presence of nano h-BN particles was confirmed by TEM-SAED and XPS techniques. The rheological effects of rotational ultrasonication and combined mechanical stirring mechanism were explained schematically. The RUMS-fabricated AA7075/0.6 wt.% h-BN MMNC showed good improvement in the mechanical properties when compared with AA7075/0.6 wt.% h-BN MMNCs synthesized by conventional mechanical stir (MS) and ultrasonic (UT) assisted casting process. The enhancement in mechanical properties of RUMS-synthesized MMNCs is attributed to the amalgamated effect of ultrasonic transient cavitation and rotational acoustic streaming along with vortex motion in the novel RUMS fabrication process, which have assisted in dendritic fragmentation, and accelerated the refinement of grains to achieve consistent scattering of nano h-BN particulates without any agglomeration.

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Optimizing the ultrasonication effect in stir-casting process of aluminum hybrid composite using desirability function approach and artificial neural network

Cited by 19 publications

References 38 publications

Experimental investigation and characterization of titanium diboride reinforced AA6063 in-situ composites

Experimental investigation and characterization of titanium diboride reinforced AA6063 in-situ composites

Effect of stir casting parameters and mono/hybrid reinforcements on aluminium metal matrix composite–A review

Effects of simultaneous rotational ultrasonication and vortex-induced casting technique on particle distribution and grain refinement in AA7075/h-BN nanocomposites

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