Two body abrasion wear behaviour of Cu–ZrB2 composites against SiC emery paper

Shaik, Mahammad Ali; Golla, Brahma Raju

doi:10.1016/j.wear.2020.203260

Cited by 23 publications

(12 citation statements)

References 38 publications

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“…Dry sliding wear tests were conducted using a conventional pin-on-disc testing machine at room temperature following the ASTM G99-05 standard. 38 The pin-on-disc sliding wear test is used on materials to probe their tribological deformation behaviour and friction characteristics. The mechanistic understanding of tribological and friction properties of the low-density materials, like aluminium and its alloys, are essential before their use in high performance engineering components.…”

Section: Mechanical Testsmentioning

confidence: 99%

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Effect of Al₂O₃ nanoparticles on the mechanical behaviour of aluminium-based metal matrix composite synthesized via powder metallurgy

Zaiemyekeh

Liaghat

Khan

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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The effects of variation in aluminium oxide nanoparticles in aluminium-based metal matrix composite on the compressive and sliding wear deformation have been investigated. The compressive and sliding wear resistance of the composite increase significantly with the addition of nanoparticles in the matrix. The 5% aluminium oxide nanoparticles in the composite were found to be the optimal weight fraction of added nanoparticles that produced higher static yield strength, hardness, scratch resistance and lower material loss in wear in the composite. The addition of nanoparticles, beyond 5% weight fraction, in the matrix showed adverse effects in the performance of the composite due to its higher brittleness. The effects on wear properties of the composite with added nanoparticles beyond optimal weight fraction were more detrimental than those with lower weight fraction of nanoparticles.

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Section: Mechanical Testsmentioning

confidence: 99%

“…Vickers micro-hardness testing was carried out on samples following ASTM E384 standard. 38 An applied load of 100 g was applied to the samples for 15 s in the hardness test. The tests were repeated five times to ensure the reliability of the results.…”

Section: Mechanical Testsmentioning

confidence: 99%

Effect of Al₂O₃ nanoparticles on the mechanical behaviour of aluminium-based metal matrix composite synthesized via powder metallurgy

Zaiemyekeh

Liaghat

Khan

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…However, the hardness, strength and wear resistance of Cu are low, and cannot meet the increasing requirements of modern science and technology on material properties. To overcome the low hardness and low wear resistance of pure Cu, Cu-based composites have been widely studied [1][2][3][4]. For example, Shaik et al [1] studied the mechanical properties and tribological characteristics of Cu-zirconium diboride (ZrB 2 ) composites against silicon carbide (SiC) emery paper.…”

Section: Introductionmentioning

confidence: 99%

“…To overcome the low hardness and low wear resistance of pure Cu, Cu-based composites have been widely studied [1][2][3][4]. For example, Shaik et al [1] studied the mechanical properties and tribological characteristics of Cu-zirconium diboride (ZrB 2 ) composites against silicon carbide (SiC) emery paper. The results suggested that, when the ZrB 2 content was 10 wt.%, the Cu-ZrB 2 composites possessed the maximum hardness and the maximum yield strength, and the steady-state friction coefficient of Cu decreased, from 0.56 to 0.16, when ZrB 2 was added.…”

Section: Introductionmentioning

confidence: 99%

Effect on Microstructure and Performance of B4C Content in B4C/Cu Composite

Shu¹,

Yang

2021

Metals

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In this paper, boron carbide (B4C) ceramics were added to a copper (Cu) base, to improve the mechanical properties and wear resistance of pure copper. The B4C/Cu composites with different B4C contents, were obtained by mechanical mixing and discharge plasma sintering methods. Scanning electron microscopy (SEM), energy spectrum analysis (EDS), and electron probe microanalysis (EPMA) were used, to observe and analyze the microstructures of the B4C/Cu composites. The influences of the B4C content on the hardness, density, conductivity, and wear resistance were also studied. The experimental results show that B4C has an important effect on Cu. With increasing B4C content, both the density and conductivity of the B4C/Cu composites gradually decrease. The hardness of the Cu-15 wt.% B4C composite has the highest value, 86 HBW (Brinell hardness tungsten carbide ball indenter), which is 79.2% higher than that of pure copper. However, when the B4C amount increases to 20 wt.%, the hardness decreases due to the metallic connection being weakened in the material. The Cu-15 wt.% B4C composite has the lowest volume loss, indicating that it has the best wear resistance. Analyses of worn B4C/Cu composite surfaces suggest that deep and narrow grooves, as well as sharp ridges, appear on the worn pure Cu surface, but on the worn Cu-15 wt.% B4C composite surface, the furrows become shallow and few. In particular, ridge formation cannot be found on the worn Cu-15 wt.% B4C composite surface, which represents the enhancement in wear resistance.

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“…The electrical, thermal, and mechanical properties of Cu matrix composites vary depending on factors such as reinforcement particles and production processes. For example, the hardness, tensile strength, and wear resistance of Cu matrix composites are improved by adding reinforcement particles to the Cu matrix and increasing their volume or weight fractions (Singh et al, 2019;Shaik and Golla, 2020;Yin et al, 2020). However, due to the low electrical conductivity of reinforcement particles, the electrical conductivity of Cu matrix composites decreases.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the effects of microwave and spark plasma sintering on the electrical, thermal, and mechanical properties of Cu-LaB6 nanocomposites

Diler¹

2021

Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The effects of lanthanum hexaboride (LaB6) nano-particles on the electrical, thermal, and mechanical properties of copper-based nanocomposites (Cu-LaB6) produced using microwave sintering (MS) and spark plasma sintering (SPS) processes were investigated in this study. Nano LaB6 particles reduced the electrical conductivity of Cu matrix nanocomposites produced via MS and SPS by 20% and 13%, respectively. Cu-LaB6 nanocomposites had lower thermal conductivity than unreinforced Cu. The electrical and thermal conductivities of the Cu-LaB6 nanocomposite produced by the SPS process were higher than those of the Cu-LaB6 nanocomposite produced by the MS process. An equation that takes particle volume ratio and porosity into account was developed to predict the thermal conductivity of nanocomposites from their electrical conductivity. The calculated thermal conductivity values for Cu-LaB6 nanocomposites were very close to the experimental results. Cu-LaB6 nanocomposites had much higher hardness and compressive strength by 49% and 38%, respectively, compared to those of unreinforced Cu. The hardness and compressive strength of the Cu-LaB6 nanocomposite produced by SPS were higher than those of the Cu-LaB6 nanocomposite manufactured via MS. Although nano LaB6 reinforcement particles reduced the electrical and thermal conductivities of Cu, Cu-LaB6 nanocomposite having high hardness and compressive strength were produced by combining the positive influences of nano LaB6 reinforcement particles and the SPS process.

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Two body abrasion wear behaviour of Cu–ZrB2 composites against SiC emery paper

Cited by 23 publications

References 38 publications

Effect of Al₂O₃ nanoparticles on the mechanical behaviour of aluminium-based metal matrix composite synthesized via powder metallurgy

Effect of Al₂O₃ nanoparticles on the mechanical behaviour of aluminium-based metal matrix composite synthesized via powder metallurgy

Effect on Microstructure and Performance of B4C Content in B4C/Cu Composite

Comparison of the effects of microwave and spark plasma sintering on the electrical, thermal, and mechanical properties of Cu-LaB6 nanocomposites

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Two body abrasion wear behaviour of Cu–ZrB2 composites against SiC emery paper

Cited by 23 publications

References 38 publications

Effect of Al2O3 nanoparticles on the mechanical behaviour of aluminium-based metal matrix composite synthesized via powder metallurgy

Effect of Al2O3 nanoparticles on the mechanical behaviour of aluminium-based metal matrix composite synthesized via powder metallurgy

Effect on Microstructure and Performance of B4C Content in B4C/Cu Composite

Comparison of the effects of microwave and spark plasma sintering on the electrical, thermal, and mechanical properties of Cu-LaB6 nanocomposites

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Effect of Al₂O₃ nanoparticles on the mechanical behaviour of aluminium-based metal matrix composite synthesized via powder metallurgy

Effect of Al₂O₃ nanoparticles on the mechanical behaviour of aluminium-based metal matrix composite synthesized via powder metallurgy