Tribological studies on aluminum beryl composites subjected to ECAP process

G, Sagar K; Suresh, P.; Sampathkumaran, P.; Kishore, .

doi:10.1016/j.wear.2023.204775

Cited by 3 publications

(4 citation statements)

References 24 publications

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“…The reinforcing material was natural beryl Be 3 Al 2 Si 6 O 18 , the chemical formula of beryl, is a mineral made of beryllium aluminium silicate, which is durable, thermally stable, and compatible with aluminium. Beryl's ceramic nature might improve Aluminium 2024's mechanical characteristics [21] .…”

Section: Methodsmentioning

confidence: 99%

“…The regulated cooling rate prevents beryl particle segregation and enhances uniformity. Heat treatment may improve composite microstructure and mechanical performance, depending on material qualities [21] .…”

Section: Methodsmentioning

confidence: 99%

“…These composites have several uses due to their strength, stiffness, and wear resistance [18][19][20] . Aluminium MMC grain structure may be enhanced using ECAP [21,22] . The treatment boosts strength, hardness, and wear resistance.…”

Section: Introductionmentioning

confidence: 99%

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Significant Difficulties in Achieving Equal Channel Angular Pressing in Aluminum Metal Matrix Composites

Sagar K G

2023

j. of met. mater. res.

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The technique known as Equal Channel Angular Pressing (ECAP) has gained prominence as a transformational method for improving the mechanical characteristics of metals and alloys by subjecting them to intense plastic deformation. This study explores the significant difficulties that arise when using Equal Channel Angular Pressing (ECAP) on Aluminium 2024-Beryl Metal Matrix Composites (2024-BMMCs), providing a detailed analysis of the complex interaction between the reinforcement particles and the aluminium matrix. This work aims to provide a thorough examination of the challenges, root causes, and possible approaches to address the issue of producing consistent deformation in 2024-BMMCs using ECAP. By doing so, this research contributes to a better understanding of the intricate nature of this process.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Significant Difficulties in Achieving Equal Channel Angular Pressing in Aluminum Metal Matrix Composites

Sagar K G

2023

j. of met. mater. res.

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“…In order to refine grains with moderate-to-high strain, numerous severe plastic deformation (SPD) processes have been utilized, including torsion under high pressure [1][2][3], ball milling [4,5], and equal-channel angular pressing (ECAP) [6][7][8][9]. During ECAP, the bulk of the sample undergoes approximately simple shear, and repetitive passes of the same sample can be achieved, since the sample cross-section remains unaltered after each pass.…”

Section: Introductionmentioning

confidence: 99%

Grain Refinement and Strengthening of an Aluminum Alloy Subjected to Severe Plastic Deformation through Equal-Channel Angular Pressing

Korchef

Souid

2023

Crystals

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In the present study, the microstructure, mechanical properties, and stored energy of an aluminum alloy containing iron-rich fine precipitates, subjected to severe plastic deformation through equal-channel angular pressing (ECAP), were investigated using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and atomic force microscopy. Up to four passes through ECAP resulted in significant nanometer-scale grain refinement, as well as the accumulation of lattice defects, such as dislocations and mesoscopic shear planes. This resulted in a noticeable enhancement in the Vickers microhardness and the flow stress after ECAP. Differential scanning calorimetry results showed that the ECAP’ed material exhibited two exothermal peaks at 222 ± 2 °C and 362 ± 2 °C, with total thermal effects of ΔH = 4.35 and 6.5 J/g, respectively. Slight increases in the ECAP’ed material microhardness and flow stress were observed at 200 °C. The heat release, at a relatively low temperature, and the slight improvement in the mechanical properties were attributed to the evolution of low- and high-angle misorientation, with the strain and the pinning of tangled dislocation caused by the existing fine particles. The second peak was attributed to grain growth, resulting in a significant softening of the material.

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Preparation and Characterization of Al-ZrB2 Composites by Planetary Milling and Equal Channel Angular Pressing: Effect of ZrB2 Amount and Milling Time on Wear Behavior and Compressive Strength

Jafari,

Montazeri-Pour,

Rajabi

2024

J. of Materi Eng and Perform

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Tribological studies on aluminum beryl composites subjected to ECAP process

Cited by 3 publications

References 24 publications

Significant Difficulties in Achieving Equal Channel Angular Pressing in Aluminum Metal Matrix Composites

Significant Difficulties in Achieving Equal Channel Angular Pressing in Aluminum Metal Matrix Composites

Grain Refinement and Strengthening of an Aluminum Alloy Subjected to Severe Plastic Deformation through Equal-Channel Angular Pressing

Preparation and Characterization of Al-ZrB2 Composites by Planetary Milling and Equal Channel Angular Pressing: Effect of ZrB2 Amount and Milling Time on Wear Behavior and Compressive Strength

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