Metal to Metal Worn Surface of AA6061 Hybrid Composites Casted by Stir Casting Method

This paper presents the characterization of A356 composite reinforced with fly ash and basalt ash produced by stir casting method. Aluminium metal matrix composites (AMC) are used in wide variety of applications such as structural, aerospace, marine, automotive etc. Stir casting is cost effective manufacturing process and it is useful to enhance the attractive properties of AMCs. Three sets of hybrid AMC are prepared by varying the weight fraction of the reinforcements (3% basalt + 7% fly ash, 5% basalt + 5% fly, 7% basalt + 3% fly ash). The effect of reinforcements on the mechanical properties of the hybrid composites such as hardness, tensile, compressive and impact strength were studied. The obtained results reveal that tensile, compressive and impact strength was increased when weight fraction of fly ash increased, whereas the hardness increases when weight fraction of the basalt ash increased. Microscopic study reveals the dispersion of the reinforcements in the matrix.

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Experimental investigation of AA2014 alloy with reinforcement of fly ash and SiC hybrid composites by stir casting method

Materials Today Proceedings ◽

10.1016/j.matpr.2020.04.897 ◽

2020 ◽

Vol 33 ◽

pp. 3342-3346

Author(s):

P. Gurusamy ◽

S. Tamilselvan ◽

S. Saravanan ◽

D. Nantha Gopal

Keyword(s):

Experimental Investigation ◽

Fly Ash ◽

Hybrid Composites ◽

Stir Casting ◽

Casting Method ◽

Aa2014 Alloy

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Influence of the Sr and Mg Alloying Additions on the Bonding Between Matrix and Reinforcing Particles in the AlSi7Mg/SiC-Cg Hybrid Composite

Archives of Metallurgy and Materials ◽

10.1515/amm-2016-0111 ◽

2016 ◽

Vol 61 (2) ◽

pp. 651-656 ◽

Cited By ~ 1

Author(s):

A. J. Dolata ◽

M. Dyzia ◽

S. Boczkal

Keyword(s):

Phase Composition ◽

Hybrid Composites ◽

Matrix Alloy ◽

Stir Casting ◽

Casting Method ◽

Proper Selection ◽

Alloying Additions ◽

Reinforcing Particles ◽

Mould Casting ◽

Selection Of

Abstract The aim of the work was to perform adequate selection of the phase composition of the composite designated for permanent - mould casting air compressor pistons. The hybrid composites based on AlSi7Mg matrix alloy reinforced with mixture of silicon carbide (SiC) and glassy carbon (Cg) particles were fabricated by the stir casting method. It has been shown that the proper selection of chemical composition of matrix alloy and its modification by used magnesium and strontium additions gives possibility to obtain both the advantageous casting properties of composite suspensions as well as good bonding between particles reinforcements and matrix.

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Machining behavior of AA6351–SiC–B4C hybrid composites fabricated by stir casting method

Particulate Science And Technology ◽

10.1080/02726351.2015.1093050 ◽

2015 ◽

Vol 34 (5) ◽

pp. 586-592 ◽

Cited By ~ 14

Author(s):

S. Thirumalai Kumaran ◽

M. Uthayakumar ◽

Adam Slota ◽

S. Aravindan ◽

Jerzy Zajac

Keyword(s):

Hybrid Composites ◽

Stir Casting ◽

Casting Method

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Metallurgical and Mechanical Characterization of Al 6082-B4C/Si3N4 Hybrid Composite Manufactured by Combined Ball Milling and Stir Casting

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.592-594.484 ◽

2014 ◽

Vol 592-594 ◽

pp. 484-488 ◽

Cited By ~ 7

Author(s):

Pardeep Sharma ◽

Dinesh Khanduja ◽

Satpal Sharma

Keyword(s):

Ball Milling ◽

Mechanical Characterization ◽

Hybrid Composites ◽

Stir Casting ◽

Matrix Composites ◽

Casting Method ◽

Percentage Elongation ◽

Silicon Nitride Powder ◽

The Cost

Aluminium matrix composites (AMCs) having more than one reinforcement (hybrid AMCs) found enlarged use due to better strength, high thermal stability and wear resistance properties and can be a substitute for single reinforced AMCs .The effect of varying ball milled (BM) B4C/Si3N4 particles on the microstructure of as cast AA6082 and mechanical properties of AA6082 alloy hybrid composites produced by combined ball milling and conventional stir casting method have been reported. The combined reinforcement of BM B4C/Si3N4 particles were varied from 0-9 % in a step of 3. The wettability of B4C/Si3N4 into the aluminium melt has been increased by ball milling the boron carbide with silicon nitride powder, so that combined reinforcement of B4C/Si3N4 neither float nor sink in the aluminium melt. The investigated result showed that addition of combined reinforcement of BM B4C/Si3N4 increased Hardness and Ultimate tensile strength at the cost of reduction in percentage elongation.

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Cast Hybrid Composites Designated for Air Compressor Pistons

Archives of Metallurgy and Materials ◽

10.1515/amm-2016-0120 ◽

2016 ◽

Vol 61 (2) ◽

pp. 705-708 ◽

Cited By ~ 3

Author(s):

A. J. Dolata ◽

M. Dyzia ◽

L. Jaworska ◽

P. Putyra

Keyword(s):

Wear Resistance ◽

Composite Material ◽

Phase Composition ◽

Hybrid Composites ◽

Selection Criterion ◽

Stir Casting ◽

Additional Parameter ◽

Casting Method ◽

Air Compressor ◽

Component Selection

Abstract The main purpose of the investigations was to develop the phase composition of the composite assuming that the component selection criterion will be the formability of piston work surfaces during the machining. Wear resistance under the friction conditions was assumed as the additional parameter for the assessment of composite material. In the study were used AlSi7Mg/SiC+Cg and AlSi7Mg/SiC+GR hybrid composites prepared by the stir casting method.

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Mechanical and Tribological Properties of A7050 Hybrid Composite Reinforced with Nano Al2O3/Micro ZrO2 Particles by Stir Casting Method

Materials Science Forum ◽

10.4028/www.scientific.net/msf.969.576 ◽

2019 ◽

Vol 969 ◽

pp. 576-581

Author(s):

K. Sekar ◽

Rahul Singh

Keyword(s):

Hybrid Composites ◽

Base Alloy ◽

Charpy Impact ◽

Stir Casting ◽

Ceramic Particle ◽

Wear Loss ◽

Casting Method ◽

Mechanical And Tribological Properties ◽

New Generation ◽

Charpy Impact Strength

The composite plays an important role in the new generation of engineering material with better tribological and mechanical properties. In this paper, the hybrid composites of A7050/Al2O3/ZrO2 with different wt. % of reinforcement materials (0.5, 1, 1.5wt. % ZrO2, and 1wt. % Al2O3 constant for all composites) were fabricated by stir casting method. From the results, it was observed that the good texture in microstructure without defect with an addition of constant 1wt% Al2O3 and varying 0.5, 1and 1.5 wt% ZrO2. The Hardness of hybrid composites is increased by 27% with addition of 1wt % of Al2O3 and 1.5 wt% ZrO2 compare to base alloy. Charpy impact strength decreased with the addition of Al2O3 and ZrO2 ceramic particle in all the composites. From the dry wear studies, the composite with 1wt% Al2O3 and 1wt% ZrO2 was observed with minimum wear loss and low coefficient of friction.

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Study on mechanical properties of Al7050 alloy hybrid composites by stir casting method

Materials Today Proceedings ◽

10.1016/j.matpr.2020.12.471 ◽

2021 ◽

Author(s):

T.G. Gangadhar ◽

D.P. Girish ◽

J. Satheesh ◽

A.C. Prapul Chandra ◽

Vishal

Keyword(s):

Mechanical Properties ◽

Hybrid Composites ◽

Stir Casting ◽

Casting Method

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Thermal Conductivity & Thermal Expansion Behaviour of Hot Extruded Hybrid Composites of Al6061/Sic/GR

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.d6836.118419 ◽

2019 ◽

Vol 8 (4) ◽

pp. 2942-2945

Keyword(s):

Thermal Conductivity ◽

Thermal Expansion ◽

Hybrid Composites ◽

Hot Extrusion ◽

Stir Casting ◽

Extrusion Ratio ◽

Casting Method ◽

Thermal Expansion Behaviour ◽

Expansion Behaviour

In This Proposed Work Specimens Prepared By Stir Casting Method For Different Combinations Of Reinforcement’s Sic , Gr And Al6061 As Matrix, Further Subjected To Hot Extrusion At Ratios Of 2:1,3:1 & 4:I Temperatures Of 450,500 &5500c & Machined To ASTME831 And These Specimens Were Tested For Thermal Conductivity And Co-Efficient Of Thermal Expansion, Least Of All The Above Ratios And Temperatures Were Solutionised And Aged And The Process Repeated It Was Found That At Extrusion Ratio Of 3:1 With A Combination Of Al6061/4%Sic/2%Gr Both Thermal Conductivity & Thermal Expansion Was Found To Be Improved Compared To Conventional Aluminium.

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