Dry Sliding Tribological Studies of AA6061-B4C-Gr Hybrid Composites

Monikandan, V. V.; Joseph, M. A.; Rajendrakumar, P. K.

doi:10.1007/s11665-016-2276-0

Cited by 17 publications

(4 citation statements)

References 41 publications

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“…Table 5 shows the minimum wear rate compared to the other two composite specimens due to increasing the wt% of reinforcement of Gr and fly ash with the AA7075 alloy. It can be observed from the graph (Figure 6) that as applied load increases the wear rate of 4wt% B4C/6wt%Gr/9wt% Fly ash composite showed marginal increase while compared to other combinations which are under consideration [4]. At the initial stage, small change in wear rate was observed for all the composites.…”

Section: Wear Studymentioning

confidence: 92%

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Investigation on Mechanical and Tribological Properties of AA7075 Alloy with B<sub>4</sub>C, Gr and Fly Ash Reinforced Hybrid Composites

Azhagarsamy

Sekar

2020

MSF

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The Aluminum alloys and its composites are used in the aerospace, automobile and marine industries due to their higher strength, stiffness and wear resistance properties. This study is focused on mechanical and tribological study of Al 7075 hybrid composite reinforced with B4C, Gr and Fly ash. The reinforcements are added to Al alloy in three different compositions such as (4wt% B4C/4wt% Gr/7wt% Fly ash, 4wt% B4C/5wt% Gr/8wt% Fly ash and 4wt% B4C/6wt% Gr/9wt% Fly ash). The stir casting machine was used for manufacturing hybrid composites. Hardness and wear tests were conducted for three different Al 7075 hybrid composites. The microstructure showed that the reinforcement was uniformly distributed in the matrix without agglomeration. The hardness and wear test results revealed that the composite with 4wt% B4C /6wt% Gr/9wt% Fly ash exhibited an increase in hardness value of about 22.69% and the minimum wear rate as compared to other composites.

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Section: Wear Studymentioning

confidence: 92%

“…The wear rate increased when load was increased. Lubrication particles were applied in the hybrid composite and decreased in wear rate while compared to monolayers were also observed [4]. Particle reinforcements like Gr, and B4C in aluminium metal matrix showed excellent wear resistance characteristics [5].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Mechanical and Tribological Properties of AA7075 Alloy with B<sub>4</sub>C, Gr and Fly Ash Reinforced Hybrid Composites

Azhagarsamy

Sekar

2020

MSF

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“…LM13 aluminium alloy is selected in this work because of its high silicon content. Many researchers have attempted the reinforcement of SiC, Al 2 O 3 , C, B 4 C, Fe, WO, MgO, AlB 2 , quartz and rock dust in aluminium alloy and observed the improvement in hardness, tensile strength and wear resistance compared to matrix [4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

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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“…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%

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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Dry Sliding Tribological Studies of AA6061-B4C-Gr Hybrid Composites

Cited by 17 publications

References 41 publications

Investigation on Mechanical and Tribological Properties of AA7075 Alloy with B<sub>4</sub>C, Gr and Fly Ash Reinforced Hybrid Composites

Investigation on Mechanical and Tribological Properties of AA7075 Alloy with B<sub>4</sub>C, Gr and Fly Ash Reinforced Hybrid Composites

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

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

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