Optimization of wear behaviour using Taguchi and ANN of fabricated aluminium matrix nanocomposites by two-step stir casting

Alam, Tanwir; Arif, Sajjad; Ansari, Akhter Husain; Alam, Naushad

doi:10.1088/2053-1591/ab0871

Cited by 38 publications

(25 citation statements)

References 33 publications

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“…Hybrid composite was found to perform better in all the performed tests. Alam et al [25] used two step stir casting to reinforce AA356 with SiCn, optimization and analysis of controlling factors were done using Taguchi and ANN. By SEM analysis they found that wear was decreased due to the presence of oxide layer and SiCn particles.…”

Section: Introductionmentioning

confidence: 99%

An experimental analysis of tensile, hardness and wear properties of aluminium metal matrix composite through stir casting process

et al. 2020

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Among several methods to fabricate Aluminium metal matrix composites, stir-casting technique is used for large-scale production due to its being less expensive. This research is concerned with the fabrication of Aluminium composites with SiC and Jute Ash Particles, for sake of producing a cost-effective composite with enhanced properties. Wear behaviour was studied using pin on disc tribometer and it was found that wear resistance increases with-addition of reinforcement particles. Fabricated composite samples showed almost 4 times better wear resistance compared to base material. Matrix metal reinforced with SiC showed the best wear resistance of all fabricated samples. Coefficient of friction significantly decreased with the presence of reinforcement due to formation of mechanical mixed layer. Tensile Strength was escalated with the introduction of reinforcement as load is transferred to strongly bonded reinforcement particles. Microhardness was enhanced with the introduction of reinforcement and Sample 2 with SiC as reinforcement showed the best microhardness. Microstructure and fractography of the base metal and fabricated composites was analyzed by Scanning Electron Microscope (SEM).

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Section: Introductionmentioning

confidence: 99%

An experimental analysis of tensile, hardness and wear properties of aluminium metal matrix composite through stir casting process

et al. 2020

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“…This technique involves melting the matrix alloy followed by stirring in the particulate reinforcement to create the nanocomposite. Meanwhile, the stir parameters such as casting temperature, stirring velocity, reinforcement content and stirring time should be optimized, in order to attain a lower of porosity, particles agglomeration, oxide inclusions and interfacial reactions during stir casting [5][6][7]. Accordingly, processing parameters must be critically selected in the melt stir technique to achieve a high degree of microstructural reliability.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al₂O₃nanoparticles

2019

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An attempt was made to synthesize aluminum alloy (AA) 7075 matrix reinforced with 0, 1, 3, 5 wt% Al 2 O 3 particulates by using stir casting technique. Mechanical properties and wear behavior were examined. The hardness and tensile properties were obtained before and after addition of Al 2 O 3 particulates to reveal the extent improvement. Wear behavior was examined by using a pin-on-disc device to validate the improvement of the wear resistance. The results showed that adding of Al 2 O 3 reinforcement were significantly enhanced the mechanical properties. The ultimate tensile strength (UTS) and yield tensile strength (YTS) were observed 133 MPa, 35 MPa for the unfilled aluminum matrix, whereas 152 MPa and 47 MPA were achieved at 5 wt% Al 2 O 3 nanocomposites which resulted in 14.3 and 34.3% improvement, respectively. The hardness was observed 57 BHN and 72 BHN at 0 wt% and 5 wt% Al 2 O 3 respectively, resulting in an improvement of 26.3%.

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“…The amount of debris obtained is less in CNTs reinforced composites [20]. The adhesion and ploughing are caused wear, the delamination is the important wear mechanism in Al-Si material is shown in figure 14(f) [27,28]. The MWCNTs pulled out on the worn surface is noticed in figure 14(g).…”

Section: Dry Sliding Wear Experimentsmentioning

confidence: 96%

“…Thin, slightest depth and smooth grove were noticed for low load and speed condition and reverse trend for higher speed and load. The formation of oxide taken place with a raise in temperature with an increase in sliding duration [18,[22][23][24][25][26][27][28][29]. The plain and smooth wear tracks can observe in nanocomposites shown in figures 14(b) to (e), the MWCNTs reinforcement minimizes the adhesion and plough wear in comparison to LM6 [4,13].…”

Section: Dry Sliding Wear Experimentsmentioning

confidence: 99%

Dry sliding wear characteristics of multi-walled carbon nanotubes reinforced Al-Si (LM6) alloy nanocomposites produced by powder metallurgy technique

Shivaramu¹,

U²,

Umashankar³

2020

Mater. Res. Express

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The present work involved the production of Metal Matrix Composites (MMCs) of Aluminium Silicon (Al-Si) alloy reinforced with Multi Walled Carbon Nano Tubes (MWCNTs) using Powder Metallurgy (PM) process. MWCNTs with concentrations of 0, 0.25, 0.5, 0.75 and 1.0 wt% were used. Validation of dispersion nature, existence and chemically stable of MWCNTs carried out using Transmission Electron Microscope (TEM), X-ray Diffractometer (XRD) and Energy Dispersive Spectrum (EDS) for fabricated composites. Sliding wear investigations were investigated in accordance with the ASTM G99-95a standard. Test variables such as sliding distance, load and speed were examined. Under a given load with sliding distance, the wear rate was found to reduce by varying disc rotation speed between 250 to 750 rpm. The rate of wear is dropped suddenly with the increment in sliding distance from 500 m to 1000 m. However, for 1500 m sliding distance, the wear rate increased linearly for all nanocomposites. The reinforcement of 0.25 wt% and 0.5 wt% of MWCNTs shown lower wear resistance and further addition of 0.75 wt% MWCNTs shown enhanced wear resistance but the addition of reinforcement of above 0.75 wt% resulted in slightly higher wear rate. The wear resistance enhanced due to the excellent properties of reinforcement particles. The Scanning Electron Microscope (SEM) was used for identifying the kind of wear mechanism.

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Optimization of wear behaviour using Taguchi and ANN of fabricated aluminium matrix nanocomposites by two-step stir casting

Cited by 38 publications

References 33 publications

An experimental analysis of tensile, hardness and wear properties of aluminium metal matrix composite through stir casting process

An experimental analysis of tensile, hardness and wear properties of aluminium metal matrix composite through stir casting process

Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al₂O₃nanoparticles

Dry sliding wear characteristics of multi-walled carbon nanotubes reinforced Al-Si (LM6) alloy nanocomposites produced by powder metallurgy technique

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Optimization of wear behaviour using Taguchi and ANN of fabricated aluminium matrix nanocomposites by two-step stir casting

Cited by 38 publications

References 33 publications

An experimental analysis of tensile, hardness and wear properties of aluminium metal matrix composite through stir casting process

An experimental analysis of tensile, hardness and wear properties of aluminium metal matrix composite through stir casting process

Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al2O3nanoparticles

Dry sliding wear characteristics of multi-walled carbon nanotubes reinforced Al-Si (LM6) alloy nanocomposites produced by powder metallurgy technique

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Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al₂O₃nanoparticles