Study on mechanical and ballistic performances of boron carbide reinforced Al 6061 aluminum alloy produced by powder metallurgy

Karakoç, Halil; Karabulut, Şener; Çıtak, Ramazan

doi:10.1016/j.compositesb.2018.04.043

Cited by 88 publications

(38 citation statements)

References 39 publications

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“…The density of the compacts reduced with increasing in quantity of SiC which is because of lower density of SiC particles compared to DA. This can be also attributed to increased porosity rate depending on the increasing weight fraction of the SiC reinforcement in the matrix, as reported in [1]. The variation of density with the quantity of SiC has been depicted in Figures 10-11.…”

Section: Density Of Compactsmentioning

confidence: 54%

“…Addition of compatible reinforcements even in small quantities would further enhance the stiffness, hardness, fatigue resistance and tribological properties of aluminum alloys in specific [2]. In the present day scenario, aluminum based composites are being used in automobile, aerospace, marine and defense industries because of their superior properties [1,3].…”

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation on Silicon Carbide Reinforced Duralumin based MMC Produced by Cold Compacting

Shankar

Shivaprakash

Kumar³

et al. 2019

IJMPERD

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In the present investigation, an attempt is made to fabricate the Duralumin(DA) based Silicon Carbide (SiC p-6 and 12% wt.) reinforced composite by cold compacting the ball milled powders. The mechanically mixed powders taken into the die cavity are applied with a steady axial load in the range 22-30 T to produce the cylindrical compacts. The compacts are further subjected to sintering by holding it at a constant temperature of 580 0 C in Muffle furnace for 5 h and allowed to cool in the same for 18 h. The hardness of sintered composite is found to have improved as compared to the sintered duralumin compact prepared under similar process conditions. The SEM images showed the uniform distribution of the reinforcements in the matrix and the elemental composition is confirmed by the EDAX spectrum. The sintered specimens were further subjected to age hardening heat treatment. Specimens were soaked at 550 0 C for 2 h followed by water quenching at room temperature. The quenched specimens were artificially aged in the furnace at temperatures of 100, 150, and 200 0 C for various durations of time. The peak hardness obtained because of aging heat treatment is found to be much better than the corresponding sintered compacts. Compacts peak aged at 100 0 C exhibited better tensile strength than the other category of specimens. The composites developed in the present study would be most suitable in the applications requiring high strength and resistance to heat and wear.

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Section: Density Of Compactsmentioning

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Silicon Carbide Reinforced Duralumin based MMC Produced by Cold Compacting

Shankar

Shivaprakash

Kumar³

et al. 2019

IJMPERD

View full text Add to dashboard Cite

show abstract

“…Aluminium and its alloys have been extensively preferred for many applications because of their excellent mechanical properties. They are the first choice of researchers and engineers because of their low density, good heat and electric conductivity, resistance to corrosion and high endurance [1]. Addition of compatible reinforcements even in small quantities would further enhance the stiffness, hardness, fatigue resistance and tribological properties of aluminum alloys in specific [2].…”

Section: Introductionmentioning

confidence: 99%

“…Addition of compatible reinforcements even in small quantities would further enhance the stiffness, hardness, fatigue resistance and tribological properties of aluminum alloys in specific [2]. In the present day situation aluminum matrix composites are being used in automobile, aerospace, marine and defense industries because of superior properties [1,3] exhibited by these composites. Even with the various available methods like stir casting, pressure infiltration etc.…”

Section: Introductionmentioning

confidence: 99%

Studies on Mild Steel Particulates Reinforced Duralumin Composite Fabricated Through Powder Metallurgy Route

Shivaprakash

Gurumurthy

Siddhartha³

et al. 2019

IJMPERD

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In the present study Duralumin(DA) based Mild Steel particles (MSp -6% wt. and 12% wt.) reinforced composite are fabricated by cold compacting the milled powders. The mechanically mixed powders are compacted in a die cavity by applying a uniaxial steady load in the range 22-38 T. The hardness of green compacts produced are increased by sintering. The SEM images showed an even dispersion of MS p in the duralumin alloy and elemental composition is confirmed by the EDAX spectrum. The sintered specimens were further subjected to aging treatment. Compacts were soaked at 550 0 C for a span of 2 h and then are quenched in water at ambient temperature. The temperatures selected for aging treatment are 100, 150, and 200 0 C and hardness was checked for every 60 minutes of time. The peak hardness obtained because of aging heat treatment is found to be much better than the corresponding sintered compacts. Compacts peak aged at 100 0 C exhibited better tensile strength than the rest of the other specimens. Impact Factor (JCC): 7.6197 SCOPUS Indexed Journal NAAS Rating: 3.11quantity of reinforcement can be dispersed in the matrix and also a better control of microstructure phases is achievable [5]. Also in specific by aluminum PM it is possible to produce high performance, net or nearly net to shapes of components, hence bringing down or avoiding the investment and running costs attached with complex machining operations [6]. In the recent year's researchers have used ceramic particles for producing the composites. But the major drawback with ceramics reinforced MMC's are their relatively lower toughness and toughness. Also, the relatively higher costs would make them economically unsuitable for various applications. In contrast, steels are competitively low cost, which has made them attractive in a wide range of applications [7].In the light of above, the present investigation concentrates on to develop the composite by dispersing the mild steel particles in different proportions in duralumin matrix by employing the cold compacting approach. The composite developed is expected to provide superior mechanical properties suitable for high strength, heat and wear resistant applications.

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“…Aluminum alloy based metal-matrix composite material (MMC) currently find more and more extensive use in the automotive industry as they are distinguished by their higher hard-wearing, high resistance to crack generation, the lower coefficient of linear thermal expansion, improved strength characteristics, heat resistance and thermal conductivity. The main constraints for the extending use of composites are the cost of their fabrication and increasing production expenses [1][2][3][4][5]. Figure 1 shows the fatigue curves of alloy 2080 with varying saturation degree.…”

Section: Introductionmentioning

confidence: 99%

Prospects for using aluminum matrix composite materials in the automotive industry

2019

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The scope of the use of aluminum-alloy-based metal-matrix composite materials has been expanding in recent years. However, the high cost of raw materials is a considerable deterrent to the widespread implementation of products made of such composites. Therefore, the ranges of the said materials commercial application are yet inadequate to their technical and operational capabilities. So, methods of making metal-matrix composite materials directly from a liquid melt are currently of interest. This paper presents the theoretical studies and the results of practical experiments for the production of metal-matrix composite material by the internal oxidation method. There are described the results of mechanical tests and the microstructure of specimens confirming theoretical assumptions in the oxidation of aluminum melt array. A comparative analysis is given for the cost of producing an alloy containing 30% of Al2O3 particles obtained by adding the Al2O3 powder and an alloy obtained by the internal oxidation of the aluminum melt. The studied technology provides for the formation of aluminum oxide directly in the aluminum melt, thus enabling to produce a composite material by a single-stage process and ensuring the process efficiency.

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Study on mechanical and ballistic performances of boron carbide reinforced Al 6061 aluminum alloy produced by powder metallurgy

Cited by 88 publications

References 39 publications

Experimental Investigation on Silicon Carbide Reinforced Duralumin based MMC Produced by Cold Compacting

Experimental Investigation on Silicon Carbide Reinforced Duralumin based MMC Produced by Cold Compacting

Studies on Mild Steel Particulates Reinforced Duralumin Composite Fabricated Through Powder Metallurgy Route

Prospects for using aluminum matrix composite materials in the automotive industry

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