Investigation of Mechanical Properties and Dry Sliding Wear Behaviour of Squeeze Cast LM6 Aluminium Alloy Reinforced with Copper Coated Short Steel Fibers

Chelladurai, Samson Jerold Samuel; Arthanari, Ramesh; Nithyanandam, Nisaanthakumar; Rajendran, Karthikeyan; Radhakrishnan, Kesavaprasad Kothandapani

doi:10.1007/s12666-017-1258-8

Cited by 56 publications

(18 citation statements)

References 36 publications

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“…However micro pores between matrix and reinforcement act as crack nucleating points, coalesce which results in fracture of composites. Sim-ilar results have been observed in other studies that the interface of matrix and reinforcement act as crack nucleating points, linked with other cracks and leading to failure of composites [12,35].…”

Section: Analysis Of Fracture Surfacesupporting

confidence: 58%

“…Many researchers have reported the improvements in hardness, tensile strength and wear resistance of aluminium alloy by reinforcing silicon carbide, aluminium oxide, boron carbide, titanium carbide, titanium diboride, tungsten oxide, steel fibers, carbon nano tubes, graphite, beryl, quartz, rock dust and fly ash particles [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. Researchers have studied the effect of fly ash particles reinforcement in AA6061 aluminium alloy.…”

Section: Introductionmentioning

confidence: 99%

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Investigation on mechanical properties and tribological behaviour of stir cast LM13 aluminium alloy based particulate hybrid composites

Chelladurai¹,

Murugesan²,

Rajamani³

et al. 2019

Materialwissenschaft Werkst

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LM13 aluminium alloy with boron carbide (0 wt.%–7.5 wt.%) and fly ash (2.5 wt.%) reinforced particulate hybrid composites were fabricated using liquid metallurgy route. Microstructure and mechanical properties viz., hardness, ultimate tensile strength and ductility were investigated. Wear behaviour of composites was tested by varying sliding distance and load. Fracture surface and worn surface of composites were examined using field emission scanning electron microscope. Microstructure of hybrid composites revealed uniform dispersion of particles in LM13 aluminium alloy. Hardness and tensile strength of composites increased with increasing wt.% of boron carbide and fly ash particles. Wear test results showed that addition of particles significantly decreased the weight loss and coefficient of friction. Also cumulative weight loss decreased up to 47.2 % for 10 wt.% of hybrid composites as compared to LM13 aluminium alloy. Fracture surface of composites showed dimples with particle cracking on the surface. Worn surface of LM13 aluminium alloy showed continuous grooves due to ploughing with delamination. However, worn surface of composites showed fine grooves due to the presence of hard reinforcements on the surface. Boron carbide and fly ash reinforced LM13 aluminium hybrid composites exhibited superior mechanical properties with excellent wear resistance as compared to LM13 aluminium alloy.

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Section: Analysis Of Fracture Surfacesupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Investigation on mechanical properties and tribological behaviour of stir cast LM13 aluminium alloy based particulate hybrid composites

Chelladurai¹,

Murugesan²,

Rajamani³

et al. 2019

Materialwissenschaft Werkst

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“…When comparing the vickers microhardness with the composition variation it is observed that with the increase of solute concentration in the alloy there is a tendency to increase in HV values. Chelladurai in his study for LM6 aluminium alloy with 2.5-10 wt% of copper coated short steel fiber reinforced composites were prepared using squeeze casting process, found that the increase of Cu in the coating of the 2.5 and 10% steel fibers caused an increase in the Brinell hardness from 48 to 72 BHN 23 .…”

Section: Resultsmentioning

confidence: 98%

Effect of Squeeze Casting on Microhardness and Microstructure of Al-3Cu-xSi Alloy

et al. 2019

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Aluminum alloys of the ANSI series 319 present Si and Cu as the main alloying elements and the mechanical strength of these alloys can be improved by the precipitation of the metastable Al 2 Cu phase. Squeeze Casting is a casting process in which the cast metal is deposited in a metal mold and solidified under certain pressure exerted by a punch. This process provides changes in the microstructure which lead to changes in the mechanical properties of the material such as the increase in the microhardness of the processed alloy. alloys Al-5,5% Si-3% Cu, Al-7,5% Si-3% and Al-9% Si-3% Cu alloys were solidified by the squeeze casting process to analyze the microstructural and microhardness variations. Pressures of 0 MPa, 50 MPa, 100 MPa and 150 Mpa were used. In general, with increasing pressure and composition, the λ 2 values decrease from the metal/mold interface, especially at pressures of 150 MPa and Composition of 9%Si, on the other hand the increase of these variables leads to the formation of more phases Al 2 Cu metastable that have a decrease in the Microhardness of the material, in addition to the formation of other phases due to the proximity to the eutetic.

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“…ASTM E10 standard is used while checking the hardness of composites. Tensile specimens of 25 x 6 x 6 mm are prepared using wire cut electrical discharge machine as per ASTM E8 standard and are tested using extensometer [24].…”

Section: Methodsmentioning

confidence: 99%

Experimental investigation on mechanical properties and wear characterization of Al‐Si12CulMg1 aluminium alloy reinforced with titanium diboride and boron carbide particulate hybrid composites using stir casting process

Vadivel

Chinnusamy²,

Chelladurai³

2020

Materialwissenschaft Werkst

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LM13 aluminium alloy (Al−Si12CulMg1) with titanium diboride (TiB2) and boron carbide (B4C) particulate hybrid composites have been prepared using stir casting process. Wt% of titanium diboride is varied from 0–10 and constant 5 wt% boron carbide particles have been used to reinforce LM13 aluminium alloy. Microstructure of the composites has been investigated and mechanical properties viz., hardness, the tensile strength of composites have been analyzed. Wear behavior of samples has been tested using a pin on disc apparatus under varying load (20 N–50 N) for a sliding distance of 2000 m. Fracture and wear on the surface of samples have been investigated. Microstructures of composites show uniform dispersion of particles in LM13 aluminium alloy. Hardness and tensile strength of composites increased with increasing wt % of reinforcements. Dry sliding wear test results reveal that weight loss of composites increased with increasing load and sliding distance. Fracture on the surface of composites reveals that the initiation of crack is at the interface of the matrix and reinforcement whereas dimples are observed for LM13 aluminium alloy. Worn surface of composites shows fine grooves and delamination is observed for the matrix.

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Investigation of Mechanical Properties and Dry Sliding Wear Behaviour of Squeeze Cast LM6 Aluminium Alloy Reinforced with Copper Coated Short Steel Fibers

Cited by 56 publications

References 36 publications

Investigation on mechanical properties and tribological behaviour of stir cast LM13 aluminium alloy based particulate hybrid composites

Investigation on mechanical properties and tribological behaviour of stir cast LM13 aluminium alloy based particulate hybrid composites

Effect of Squeeze Casting on Microhardness and Microstructure of Al-3Cu-xSi Alloy

Experimental investigation on mechanical properties and wear characterization of Al‐Si12CulMg1 aluminium alloy reinforced with titanium diboride and boron carbide particulate hybrid composites using stir casting process

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