Studies on Aluminum — Fly-Ash Composite Produced by Impeller Mixing

Sarkar, S.; Sen, Sudipta; Mishra, Subash Chandra; Kudelwar, M.K.; Mohan, S.

doi:10.1177/0731684408096428

Cited by 34 publications

(17 citation statements)

References 14 publications

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“…Manufacturing aspects of particle reinforced composite components has been investigated by few researchers pertaining to machining studies of particle reinforced cast aluminum composites followed by liquid metallurgy route. [1][2][3][4][5][6] discussed the application of Metal matrix composites in manufacturing of transportation vehicles. M.K.Surappa, [7] carried out research work on the manufacturing aspect of the particulate metal matrix composites and he observed the need of improving damage tolerant properties particularly fracture toughness and ductility.…”

Section: Literature Reviewmentioning

confidence: 99%

Effect of Machining Parameters on the Surface Roughness while Turning Particulate Composites

Rao¹,

Bhagyashekar

Narendraviswanath³

2014

Procedia Engineering

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Metal matrix composites being used in automobile, aviation, naval, space and other structural applications because of their unique balance of physical and mechanical properties. The metal matrix composites are produced using diverse technologies in order to meet the market demand such as lower density, higher wear resistance, thermal stability at lower cost per component. Composite materials replace almost all the monolithic material while posing challenges for machining hence are graded as difficult to machine materials. The hetrogeneous structure of the composite materials leads to the failure of cutting tool during machining composites are mainly attributed for the presence of hard particles which leads to higher surface roughness value. Thus, present paper presents the results on surface roughness values of K10 grade carbide and Poly Crystaline Diamond (PCD) inserts while turning Al6061-flyash composites containing 0% to 15% fly ash in step of 5%. Parametric studies have been carried out as per ISO3685 standards following dry machining condition. The machining parameters are cutting speeds of 300m/min to 600m/min in step of 100m/min, feed of 0.06mm/revolution to 0.24mm/revolution in step of 0.06mm/revolution using a constant depth of cut of 1.2 mm which is equal to three times to the nose radius of the cutting tool. The results revealed that PCD inserts exhibits lower surface roughness while turning composites containing 10% filler material when compared with that of K10 grade tungsten carbide insert.

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Section: Literature Reviewmentioning

confidence: 99%

Effect of Machining Parameters on the Surface Roughness while Turning Particulate Composites

Rao¹,

Bhagyashekar

Narendraviswanath³

2014

Procedia Engineering

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“…Decrease in interfacial energy is assured by having interfacial reaction to occur and producing reaction production like Mg 2 Si [8]. Addition of Mg into the liquid metal reduces the surface tension [9] and there by avoids the rejection of the particles from the melts. Without addition of Mg recovery of the particles into the melt is quite low.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Wettability of Aluminum Based Silicon Carbide Reinforced Particulate Metal Matrix Composite

Singh

Chauhan

Gope

et al. 2014

High Temperature Materials and Processes

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Lately, materials research has shifted to composite materials from monolithic, adjusting to the global need for light weight, low cost, quality, and high performance in structural materials. Every effort aims to develop a material which can be appropriate for various industry and machinery purpose. In the present study, a modest attempt has been made to develop cast aluminum based silicon carbide (SiC) particulate metal matrix composite (MMC) and worked upon to raise the wettability factor between the matrix and dispersion phase. Magnesium (Mg) is used as wetting agent. It works by scavenging the oxygen from dispersoids surface and thinning the gas layer around dispersoids and this is done by forming MgO or MgAl 2 O 4 or both according to concentration of Magnesium added. Mg 2 Si is the compound responsible for strengthening. The combination of aluminum and magnesium seems to have synergetic effect on wetting and give appropriate strength. All mechanical properties obtained are well correlated with microstructure obtained by Scanning electron micrograph. Differential thermal analysis (DTA) and thermo gravimetric analysis (TGA) also justified the results obtained in present investigations.

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“…Results have shown that the foam-like behavior of aluminum/ fl y ash cenosphere composites leads to high compressive strain and the possibility of tailoring the strength and modulus. [8][9][10][11] Young's modulus, yield strength, and plateau stress of syntactic foams increased with composite density, 7,9,12 but the energy absorption ability increased when the cenosphere volume fraction is increased. 8,13 Two existing studies have focused on determining the strain rate effects on mechanical properties of aluminum matrix syntactic foams.…”

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confidence: 96%

High strain rate compressive characterization of aluminum alloy/fly ash cenosphere composites

Luong

Gupta

Daoud

et al. 2011

JOM

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Research Summary metal matrix syntactic Foams How would you… …describe the overall signifi cance of this paper? The paper demonstrates: (1) the use of an environmentally hazardous waste material, fl y ash, in developing high performance composite materials; (2) the rate of compression can change the mechanical properties of composites; and (3) widespread use of aluminum and aluminum matrix composites in automobiles requires better understanding of material properties at different strain rates. …describe this work to a materials science and engineering professional with no experience in your technical specialty? This work discovers that the matrix alloy does not show dependence of mechanical properties on the rate of compression, but the composite does. Use of hollow particles as fi llers makes the material lighter and increases its energy absorption capabilities. …describe this work to a layperson? Aluminum is widely used in automobile and aircraft structures, which operate at high speeds. Safety in these structures can be improved by evaluating the material properties at high rates of compression. This work reports that the properties of aluminum matrix composites can be dependent on the rate of compression. Metal foams are expected to absorb energy under compression and improve safety. A porous composite material can provide insight into developing safer material systems for such applications.

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Studies on Aluminum — Fly-Ash Composite Produced by Impeller Mixing

Cited by 34 publications

References 14 publications

Effect of Machining Parameters on the Surface Roughness while Turning Particulate Composites

Effect of Machining Parameters on the Surface Roughness while Turning Particulate Composites

Enhancement of Wettability of Aluminum Based Silicon Carbide Reinforced Particulate Metal Matrix Composite

High strain rate compressive characterization of aluminum alloy/fly ash cenosphere composites

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