Evaluation of mechanical properties of aluminium alloy–alumina–boron carbide metal matrix composites

Ramnath, B. Vijaya; Elanchezhian, C.; Jaivignesh, M.; Rajesh, S.; Parswajinan, C.; Ghias, A. Siddique Ahmed

doi:10.1016/j.matdes.2014.01.068

Cited by 276 publications

(74 citation statements)

References 21 publications

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“…It is a suitable process for production of metal matrix composites due to its cost effectiveness, applicability to mass production, simplicity, almost net shaping and easier control of composite structure [14].…”

Section: Stir Castingmentioning

confidence: 99%

Fabrication of Aluminum Matrix Composites by Stir Casting Technique and Stirring Process Parameters Optimization

Sahu¹,

Sahu²

2018

Advanced Casting Technologies

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Aluminum matrix composites (AMCs) and hybrid aluminum matrix composites (HAMCs) becomes choice for automobile and aerospace industries due to its tunable mechanical properties such as very high strength to weight ratio, superior wear resistance, greater stiffness, better fatigue resistance, controlled co-efficient of thermal expansion and good stability at elevated temperature. Stir casting is an appropriate method for composite fabrication and widely used industrial fabrication of AMCs and HAMCs due to flexibility, cost-effectiveness and best suitable for mass production. Distribution of the reinforcement particles in the final prepared composite regulates the anticipated properties of AMCs and HAMCs. However, distribution of reinforcements is governed by stirring process parameters. The study of effect of stirring parameters in the particle distribution and optimal selection of these is still a challenge for the ever-growing industries and research. In this chapter accurate and precise attempts were taken to explore the effect of stirring parameters in stir casting process rigorously. Further, Optimal values of stirring parameters were suggested which may be helpful for the researchers for the development of AMCs and HAMCs. This chapter may also provide a better vision towards the selection of stirring parameters for industrial production of AMCs and HAMCs comprising superior mechanical properties.

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Section: Stir Castingmentioning

confidence: 99%

Fabrication of Aluminum Matrix Composites by Stir Casting Technique and Stirring Process Parameters Optimization

Sahu¹,

Sahu²

2018

Advanced Casting Technologies

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“…They also stated that by MATEC Web of Conferences 166, 01001 (2018) https://doi.org/10.1051/matecconf/201816601001 ICMAA 2018 preheating the mould, we can avoid porosity in casting and increase the fluidity and proper fluid distribution. Vijaya Ramnath et al [18,19,20] studied the compression and chemical Properties of Aluminium Nano Composite and also reviewed aluminium metal matrix composites. Radhika et al [21] stated that the incorporation of Graphite as primary reinforcement, which forms the protective layer between the pin and the counter face, increases wear resistance.…”

Section: Introductionmentioning

confidence: 99%

Studies on Mechanical Behaviour of Aluminium-Silicon Carbide-Copper Metal Matrix Composite

Shreyas¹,

Shriramkumar²,

Sruthisagar³

et al. 2018

MATEC Web of Conferences

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Abstract. Metal matrix composites (MMC) are the combination of two or more dissimilar base metals which in turn gives new metal. Composites have better properties than their base material. Nowadays, composites play the major role in manufacturing industries especially in automotive industry. This paper reveals the reinforcement of Aluminium alloy (6061) with Silicon Carbide and Copper in different ratios to produce new composite using stir casting technique in normal atmospheric temperature. In this work, mechanical behavior of the composite namely tensile strength, hardness and Flexural strength were evaluated. It was observed that sample 2 shows highest tensile strength of 155 MPa with hardness 73. The result shows that the hybrid composite had better mechanical property. IntroductionNowadays composite materials are replacing conventional materials due to their high strength to weight ratio, bio degradable nature, wear and corrosion resistance. Mohan Kumar et al [1] found the Ultimate tensile strength of Al-4.5 wt% Cu-2 wt % Fly ash -3 wt%. SiC composites to be higher than the Base Matrix composite of Al -4.5wt%of Copper alloy. They stated that this material exhibits high strength to weight ratio and good fatigue resistance. Anilkumar et al [2] stated that the bonding between the matrix material and Fly ash is good and he also observed that there is no gap between the Particle and matrix Material. Itskos et al [3] discovered that by adding the Fly Ash to the MMC, it enhances the tribo-performances of the composites. Shivaprakash et al [4] found that the heat treated Fly ash composite has comparatively better characteristics to non heat treated composites, especially the wear performance is better for water quenched specimen than air cooled specimen and non-heat treated specimens. Arun Kumar et al [5] stated that the alumina coated stirrer blades will prevent the migration of ferrous ions from stirrer to the molten metal. They also found that the e-glass and Fly ash composites with aluminium (Al 6061) increase the tensile strength by 60-70%. Vivekananthan et al [6] stated that by adding the Fly ash and Mg in aluminum results in increased hardness from 58BHN to 86 BHN. Mahendra et al [7] found that the fluidity and density of the composites decreases while tensile strength, impact strength, compression strength and dry sliding wear resistantance increase due to increase in percentage of Flyash. Surendra Kumar Patel et al [8] discovered that both the reinforcements 50% SiC and 50% of Zircon sand on aluminium ADC-12 alloy give better compressive strength compared to others. Ramanpreet Singh and Rahul Singla [9] stated that by increasing the weight fraction of Silicon Carbide, the wear rate gets reduced linearly. Ashok Atulker et al [10] found that the wear rate remains constant more or less in the pressure range of 0.5N/mm 2 to 0.6N/mm 2 , but the wear rate increases steadily up to the normal pressure of 0.5N/mm 2 , and increases rapidly that due to adhesive wear. Vinod Kumar et al [11] stated that the wear rate o...

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“…They concluded that the mechanical properties increased due to the increase in solid-solution strengthening. V. Ramnath et al 8 analysed the mechanical behaviour of aluminium-boron carbide-alumina composites produced by the stir-casting method. They concluded that the hardness and toughness of the aluminium-boron carbide (3 % of mass fractions) alumina (2 % of mass fractions) composites exhibit superior properties than the other composites and unreinforced alloy.…”

Section: Introductionmentioning

confidence: 99%

Effect of particles size on the mechanical properties of SiC-reinforced aluminium 8011 composites

Ashok¹,

Palanisamy²

2017

Mater. Tehnol.

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The effects of the SiC particle size on the mechanical properties of aluminium 8011-SiC composites are reported. Three different particle sizes of SiC (63, 76, 89) μm with two different mass fractions of 2 % and 4 % reinforced with aluminium 8011 were processed using the stir-casting method. The mechanical properties, like hardness, tensile strength, yield strength, ductility, and toughness, of the composites and the unreinforced alloy were tested. It was observed that the hardness, tensile strength, yield strength, ductility, and toughness increase with a decrease in the particle size of the SiC. The increase in weight fraction of the SiC improves all the mechanical properties, except for the ductility and toughness of the composites. The results reveal that the fine 63 μm (220 mesh) SiC particles introduced superior mechanical properties compared to the intermediate 76 μm (180 mesh) SiC particles and the coarse 89 μm (150 mesh) SiC. Keywords: composites, particle size, stir casting method, weight fractions, mechanical properties Delo poro~a o u~inkih velikosti delcev SiC na mehanske lastnosti aluminijevih 8011 kompozitov. Tri razli~ne velikosti delcev SiC (63, 76, 89) μm z dvema razli~nima dele`ema te`e (2 in 4) %, oja~ane z aluminijem 8011, so bile obdelane z metodo me{anja in litja. Testirane so bile mehanske lastnosti, kot so: trdota, natezna trdnost, meja te~enja, duktilnost in`ilavost kompozitov in neoja~ane zlitine. Ugotovljeno je bilo, da se trdota, natezna trdnost, meja te~enja, duktilnost in`ilavost pove~ajo z zmanj{anjem velikosti delcev SiC. Pove~anje dele`a masnega odstotka SiC izbolj{uje vse mehanske lastnosti razen razteznosti in`ilavosti kompozitov. Rezultati ka`ejo, da drobni 63 μm (220 mesh) SiC delci poka`ejo nadpovpre~ne mehanske lastnosti v primerjavi z vmesnim 76 μm (180 mesh) SiC delci in grobimi 89 μm (150 mesh) SiC. Klju~ne besede: kompoziti, velikost delcev, metoda me{anja in litja, masni dele`i, mehanske lastnosti

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Evaluation of mechanical properties of aluminium alloy–alumina–boron carbide metal matrix composites

Cited by 276 publications

References 21 publications

Fabrication of Aluminum Matrix Composites by Stir Casting Technique and Stirring Process Parameters Optimization

Fabrication of Aluminum Matrix Composites by Stir Casting Technique and Stirring Process Parameters Optimization

Studies on Mechanical Behaviour of Aluminium-Silicon Carbide-Copper Metal Matrix Composite

Effect of particles size on the mechanical properties of SiC-reinforced aluminium 8011 composites

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