Tribological Behaviour of Aa6061 Alloy Reinforced with Boron Carbide Particles at Room and Elevated Temperature

Aluminium matrix composites (AMCs) are indispensable materials used extensively in the aerospace and automobile industries and are highly endorsed due to their good mechanical properties. In this paper, various compositions of the AMCs were fabricated, tested and analyzed using pin on disc tribometer test to understand the tribological behaviour and wear mechanism properties. The volume percentages of the Aluminium composite reinforced with boron carbide and graphite present in the form of Al-B4C-Graphite are Al-B4C (5%)-Graphite (5%), Al-B4C (10%)-Graphite (5%), Al-B4C (5%)-Graphite (15%), Al-B4C (10%)-Graphite (15%), Al-B4C (15%)-Graphite (15%). Loads were varied in steps of 10N, from 10N to 50N while the sliding velocity was correspondingly set as 0.7, 1.4 and 2.1m/s. SEM image analysis was conducted to understand surface tribology after wear tests. The composite Al-B4C (15%)-Graphite (15%) exhibited best wear resistance which can be credited to the bearing capacity of boron carbide particles and adherent graphite layer.

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Mechanical characterization of LM25 alloy matrix composite reinforced with boron carbide

Journal of Composite Materials ◽

10.1177/00219983211005513 ◽

2021 ◽

pp. 002199832110055

Author(s):

Zeeshan Ahmad ◽

Sabah Khan

Keyword(s):

Tensile Strength ◽

Boron Carbide ◽

Mechanical Characterization ◽

Stir Casting ◽

Surface Mapping ◽

Alloy Matrix ◽

Casting Technique ◽

The Matrix ◽

Carbide Particles

Alumnium alloy LM 25 based composites reinforced with boron carbide at different weight fractions of 4%, 8%, and 12% were fabricated by stir casting technique. The microstructures and morphology of the fabricated composites were studied by scanning electron microscopy and energy dispersive spectroscopy. Elemental mapping of all fabricated composites were done to demonstrate the elements present in the matrix and fabricated composites. The results of microstructural analyses reveal homogenous dispersion of reinforcement particles in the matrix with some little amount of clustering found in composites reinforced with 12% wt. of boron carbide. The mechanical characterization is done for both alloy LM 25 and all fabricated composites based on hardness and tensile strength. The hardness increased from 13.6% to 21.31% and tensile strength 6.4% to 22.8% as reinforcement percentage of boron carbide particles increased from 0% to 12% wt. A fractured surface mapping was also done for all composites.

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Morphological Evolution of Boron Carbide Particles: Sol-Gel Synthesis of Nano/Micro B4C Fibers

Ceramics International ◽

10.1016/j.ceramint.2021.06.073 ◽

2021 ◽

Author(s):

Suna Avcioglu ◽

Figen Kaya ◽

Cengiz Kaya

Keyword(s):

Boron Carbide ◽

Morphological Evolution ◽

Sol Gel ◽

Sol Gel Synthesis ◽

Carbide Particles

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Abrasive waterjet cutting of boron carbide particles reinforced Al 6063 MMCs - A semi empirical modeling approach in the prediction of kerf angle

Measurement ◽

10.1016/j.measurement.2021.109492 ◽

2021 ◽

pp. 109492

Author(s):

V. Mohankumar ◽

M. Kanthababu ◽

A. Velayudham

Keyword(s):

Boron Carbide ◽

Empirical Modeling ◽

Abrasive Waterjet ◽

Waterjet Cutting ◽

Modeling Approach ◽

Abrasive Waterjet Cutting ◽

Kerf Angle ◽

Semi Empirical ◽

Carbide Particles

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Experimental investigations on Mechanical and Tribological behaviour of A356 with x wt% Boron Carbide and Fly Ash Hybrid Composites

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/988/1/012023 ◽

2020 ◽

Vol 988 ◽

pp. 012023

Author(s):

A Sathishkumar ◽

R Soundararajan ◽

A Ramesh ◽

T J Muthu Vel ◽

A Richie Ronaldo ◽

...

Keyword(s):

Fly Ash ◽

Boron Carbide ◽

Hybrid Composites ◽

Experimental Investigations ◽

Tribological Behaviour

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Получение карбида бора в низковольтной электрической дуге постоянного тока, инициированной в открытом воздушном пространстве

Письма в журнал технической физики ◽

10.21883/pjtf.2018.14.46341.17056 ◽

2018 ◽

Vol 44 (14) ◽

pp. 26 ◽

Cited By ~ 1

Author(s):

А.Я. Пак ◽

Г.Я. Мамонтов

Keyword(s):

Boron Carbide ◽

Arc Discharge ◽

Electron Microscopic Examination ◽

X Ray Diffraction ◽

Electron Microscopic ◽

Vacuum Equipment ◽

X Ray ◽

Gas Atmosphere ◽

Average Size ◽

Carbide Particles

AbstractWe describe a method of obtaining ultrafine boron carbide (B_13C_2) powder using the effect of a dc electric arc on a mixture of initial reactants containing carbon and boron. A peculiarity of the proposed method is that it can be implemented using arc discharge operating in open air without any vacuum equipment and protective inert gas atmosphere. X-ray diffraction data showed that the synthesized product in the general case contained three crystalline phases: boron carbide (B_13C_2), graphite (C), and boron oxide (B_2O_3). Electron-microscopic examination showed that the average size of boron carbide particles ranged from ~50 nm to ~2 μm.

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Ceramics based on reactively sintered boron carbide

NOVYE OGNEUPORY (NEW REFRACTORIES) ◽

10.17073/1683-4518-2018-10-9-15 ◽

2018 ◽

pp. 9-15

Author(s):

A. I. Ovsienko ◽

V. I. Rumyantsev ◽

S. S. Ordanian

Keyword(s):

Boron Carbide ◽

Structure Formation ◽

Process Parameters ◽

Molten Silicon ◽

Reactive Sintering ◽

Negative Effect ◽

Sintered Boron ◽

Carbide Particles

The investigating results are given on the process parameters' inﬂuence on the phase and structure formation in the course of the B4C based materials' reactive sintering under the Si molten presence. The interaction of the B4C particles and carbon with the molten silicon was regarded during the reactive sintering. The negative eﬀect of the B4C particles' dissolution in the molten silicon within the reactive sintering was noticed. The methods to raise the boron carbide particles' content in the ceramics based on the reactively sintered boron carbide were discussed.Ill. 10. Ref. 24. Tab. 1.

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