Effect of boron nitride and zirconium dioxide on mechanical behavior of Al7075 metal matrix hybrid composite

Kuldeep, B; Ravikumar, K.P.; Pradeep, S.; Gopi, K. R.

doi:10.1088/2053-1591/aaf36b

Cited by 32 publications

(14 citation statements)

References 25 publications

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“…Electric furnace of capacity 7.5 KW is used for melting. Desirable quantity of Al7075 is weighed and placed inside crucible, which was preset to the temperature of 800 o C. Corresponding quantity of h-BN is weighed and pre-heated to 450 o C to remove any moisture content present and also to improve wettability [4] using muffle furnace with PID controller.…”

Section: Composite Fabricationmentioning

confidence: 99%

“…Among various available methods, liquid metallurgy route are more preferred because of cost effectiveness and ease of adoption and simplicity [3]. With few drawbacks like poor wettability, porosity and possible interfacial reaction, stir-casting is popular and low cost method, the problem with wettability can be overcome by heat treatment of reinforcements prior to dispersion in melt, by the addition of alloying elements [4].…”

Section: Introductionmentioning

confidence: 99%

“…Many researchers had attempted to improve the behavior of Al7075 by addition of additives [4]. Baradeshwaran and Perumal [5] studied the effect of *Corresponding Author's Email: kuldeepb.deep@gmail.com (B.…”

Section: Introductionmentioning

confidence: 99%

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Effect of h-Boron Nitrate on Microstructure and Mechanical Behavior of Al7075 Metal Matrix Composite Producing by Stir Casting Technique

2019

IJE

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Al7075 alloy reinforced with h-Boron Nitrate (BN) composites were processed by stir casting technique. The produced composite was subjected to microstructural studies using OLYMPUS-BX51M, tensile, hardness, density and wear tests. Tensile strength and hardness were found to increase by 12.8% and 20% respectively due to increased dislocation density with the addition of reinforcement. Microstructure showed grain refinement with reinforcement addition and reinforcement acts as nucleating sites with an approximately uniform distribution of reinforcements. Wear test was conducted with different loads 10, 20 and 30N for a sliding distance of 1500 m. Wear mass loss of composites showed improved wear resistance with variation in reinforcements. Worn surfaces were examined using SEM, which showed the presence of delamination, plough and debris on the surface. Due to the addition of low-density h-BN, the density of composites decreases with increase in reinforcement content.

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Section: Composite Fabricationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of h-Boron Nitrate on Microstructure and Mechanical Behavior of Al7075 Metal Matrix Composite Producing by Stir Casting Technique

2019

IJE

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“…(What is the role of 3% BN). The uniform distribution of both the particles has led way for the best results [15]. Graphite particles plays a vital role in the hybrid Al 6061 matrix composites, as they have the self lubricating property, brittle and hard materials.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the mechanical, wear and corrosion behaviour of stir casted aluminium 6061 hybrid composites through the incorporation of boron nitride and aluminium oxide particles

Gopinath

Prince²,

Raghav³

2020

Mater. Res. Express

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This research paper portrays the enrichment of mechanical, wear and corrosion properties of the Aluminium 6061 matrix composite by incorporating hybrid reinforcements. Aluminium 6061 alloy is stir casted with different proportions of boron nitride (BN), Aluminium oxide (Al 2 O 3 ) and graphite particles. Tensile test reveals that the tensile strength and ductility for the Al 6061-30 BN -10Al 2 O 3 -5C is improved due to the presence of higher BN content along with 10% Al 2 O 3 . Significant improvement in microhardness (63HV), compressive strength (187 Pa) and impact strength (12 J) for the Al 6061-30 BN -10Al 2 O 3 -5C when compared with the bare Al 6061 alloy. The dispersion of BN with Al 2 O 3 improved the wear resistance for the Al 6061-30 BN -10 Al 2 O 3 -5 C composite, where as the unreinforced bare Al alloy has caused the major surface degradation resulting in poor wear property and the worn out surfaces are examined through the scanning electron microscope. The main wear mechanism is identified as adhesive wear. The corrosion test results clearly reveals that the corrosion resistance is higher for the Al 6061-30 BN -10Al 2 O 3 -5C (−0.526±0.004 V) with a lower current density of −0.983±0.004 μA cm −2 than the other composites and bare Al 6061.

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“…Munisamy et al [7] concluded that the hardness can be improved with the addition of Zircon sand and boron carbide particles. The work done by Kuldeep et al [5] concluded that rate of wear as well as tensile strength is increased with the presence of boron nitride and zirconium dioxide in Al7075 alloy. Sharma and Kumar [11] reported that addition of Al2O3-SiC Graphite reinforcement are increased, there is an appreciable improvement in mechanical properties in metal matrix composites.…”

Section: Introductionmentioning

confidence: 99%

Effect of Reinforcements on Specific Wear rate of Al 7075 / TiB2/ Cr2O3 hybrid Composites

George*,

Smart,

Haridas

2019

IJITEE

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A composite material contains different reinforcing elements added to the major material that forms the base matrix. In this work Aluminium 7075 matrix was reinforced with 12% TiB2and 4%, 6% and 8% Cr2O3 and the wear behavior of this composite was studied. The composite material was prepared by the process of stir casting. The rate of specific wear was measured for different reinforcements under varying velocity and load. The Scanning Electron Microscope images of the worn-out surfaces were used to investigate the wear pattern. The wear rate could further be extrapolated using fuzzy logic and were compared with the experimental results.

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Effect of boron nitride and zirconium dioxide on mechanical behavior of Al7075 metal matrix hybrid composite

Cited by 32 publications

References 25 publications

Effect of h-Boron Nitrate on Microstructure and Mechanical Behavior of Al7075 Metal Matrix Composite Producing by Stir Casting Technique

Effect of h-Boron Nitrate on Microstructure and Mechanical Behavior of Al7075 Metal Matrix Composite Producing by Stir Casting Technique

Enhancing the mechanical, wear and corrosion behaviour of stir casted aluminium 6061 hybrid composites through the incorporation of boron nitride and aluminium oxide particles

Effect of Reinforcements on Specific Wear rate of Al 7075 / TiB2/ Cr2O3 hybrid Composites

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