Mechanical Properties of SiC, Al2O3 Reinforced Aluminium 6061-T6 Hybrid Matrix Composite

Murugan, S.; Jegan, V.; Velmurugan, M.

doi:10.1007/s40033-017-0142-3

Cited by 29 publications

(10 citation statements)

References 8 publications

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“…The increase in the tensile strength of the ALS is stated to be attributed to two different mechanisms i.e., grain refinement and addition of SiC nanoparticles which have higher tensile strength compared with Al [42,43]. Also, the Al-SiC chemical enhanced the interfacing bonding between the matrix and reinforcement which led to increased strength [44]. Further, the reinforcement of Al alloy with SiC and Alumina in ALSA led to increased tensile and yield strength compared to all other hybrid composites and Al base alloy.…”

Section: Tensile Behaviourmentioning

confidence: 98%

Influence of Nanoparticles Reinforcements on Aluminium 6061 Alloys Fabricated via Novel Ultrasonic Aided Rheo-Squeeze Casting Method

Arunkumar

Pavanan²,

Murugesan³

et al. 2021

Met. Mater. Int.

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This study emphasis on a novel fabrication technique to fabricate hybrid cermets using Al 6061 alloy with nano sized SiC, Al2O3 and TiO2 as reinforcements. During the fabrication process, the melted pool was ultrasonicated to disperse nanoparticles at 20 kHz for 5 min and pressure of 50 MPa was applied to eliminate voids. The influence of nanoparticles on physical, thermal and mechanical properties were evaluated by tensile, wear and thermal studies. Cermets with Al2O3 reinforcements showed higher mechanical performance compared to Al alloy. This enhancement could be related to the uniform distribution of Al2O3 with refinement in grain size of Al alloy which was observed via surface analysis. The morphological studies provided justifiable evidence of homogeneous distribution, nominal cluster along with agglomeration and cavities shrinking on the cermets. The agglomeration of nanoparticles along with SiC protected the cermet in corrosion and abrasive wear by ~ 97% and ~ 71%. The study evidenced the novel fabrication method using ultrasonic rheo-squeeze casting led to improvement in mechanical and thermal properties of the hybrid cermets. Graphical abstract

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Section: Tensile Behaviourmentioning

confidence: 98%

Influence of Nanoparticles Reinforcements on Aluminium 6061 Alloys Fabricated via Novel Ultrasonic Aided Rheo-Squeeze Casting Method

Arunkumar

Pavanan²,

Murugesan³

et al. 2021

Met. Mater. Int.

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“…The plastic deformation is restricted because of the presence of secondary phases of the reinforcement in the nanocomposites [50]. Al6061-7Al2O3-20SiC --300 - [48] 3.6. Fractography Figure 8 illustrates the fractographic images of pure Al and Al-SiC-ZrO2 nanocomposites under compressive loading.…”

Section: Compressive Analysismentioning

confidence: 99%

Structural and Mechanical Properties of Al-SiC-ZrO2 Nanocomposites Fabricated by Microwave Sintering Technique

et al. 2020

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In the present study, Al-SiC-ZrO2 nanocomposites were developed and characterized. Towards this direction, the aluminum (Al) matrix was reinforced with nano-sized silicon carbide (SiC) and zirconium dioxide (ZrO2), and the mixture was blended using ball milling technique. The blended powder was compacted and sintered in a microwave sintering furnace at 550 °C with a heating rate of 10 °C/min and a dwell time of 30 min. The amount of SiC reinforcement was fixed to 5 wt.%, while the concentration of ZrO2 was varied from 3 to 9 wt.% to elucidate its effect on the microstructural and mechanical properties of the developed nanocomposites. Microstructural analysis revealed the presence and uniform distribution of reinforcements into the Al matrix without any significant agglomeration. The mechanical properties of Al-SiC-ZrO2 nanocomposites (microhardness and compressive strength) were observed to increase with the increase in the concentration of ZrO2 nanoparticles into the matrix. Al-SiC-ZrO2 nanocomposites containing 9 wt.% of ZrO2 nanoparticles demonstrated superior hardness (67 ± 4 Hv), yield strength (103 ± 5 MPa), and compressive strength (355 ± 5 MPa) when compared to pure Al and other compositions of the synthesized composites. Al-SiC-ZrO2 nanocomposites exhibited the shear mode of fracture under compression loadings, and the degree of deformation was restricted due to the work hardening effect. The appealing properties of Al-SiC-ZrO2 nanocomposites make them attractive for industrial applications.

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“…The hardness of the composites increased with the increasing amount of Si 3 N 4 concentration up to 5 wt.% in the Other factors such as improved load-bearing capacity, improved densification, and homogenous distribution were also responsible for the improvement in the hardness of composite material. [23][24][25][26] Compressive strength analysis reinforcement particle is small and the volume fraction or weight fraction is high, then the possibility of increasing the compressive strength of the material increases significantly. But, one factor such as porosity sometimes hinders the increase in compressive strength.…”

Section: Hardness Analysismentioning

confidence: 99%

Effect of microwave sintering on the microstructure and mechanical properties of Al-Al₂O₃-Si₃N₄ hybrid composite fabricated by powder metallurgy techniques

Dwivedi¹

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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In the present investigation, Si3N4 has been used in the partial replacement of SiC with Al/Al2O3 composite for the application in the automobile industries parts. A microwave sintering technique was employed for the processing of the composite. The aluminum-based composite was developed with the constant 5 wt.% of Al2O3. The weight percent of Si3N4 increased from 2.5% to 7.5%. Uniform distribution of the reinforcement particles was observed for the composition Al-5 wt.% Al2O3 − 2.5 wt.% Si3N4 composite and Al-5 wt.% Al2O3 − 5 wt.% Si3N4 composite. Optical microscope images Al-5 wt.% Al2O3 − 5 wt.% Si3N4 composite showed that the dispersion of the reinforcement (Al2O3 and Si3N4) has been done in a very fine and dense manner. Dispersion of reinforcement in a very dense manner helped in enhancing the mechanical properties of the composite. EDX pattern of Al-5 wt.% Al2O3 − 5 wt.% Si3N4 composite showed the maximum weight percentage of an element of Al, followed by Si, O, and N. Minimum porosity was found to be 0.045% for the composition Al-5 wt.% Al2O3 − 2.5 wt.% Si3N4. However, the percent porosity of the Al-5 wt.% Al2O3 − 5 wt.% Si3N4 was 0.072%. The hardness, compressive strength, and tensile strength of aluminum were improved by about 82.85%, 18.94%, and 62.60% respectively with respect to aluminum after adding 5 wt.% Al2O3 and 5 wt.% Si3N4. XRD of the Al/Al2O3/Si3N4 composite showed the presence of Al, Al2O3, Si3N4, MgAl2O4, and Al2Cu phases. Thermal expansion and corrosion behavior were also observed to identify the Al2O3 and Si3N4 addition effect in the aluminum alloy.

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Mechanical Properties of SiC, Al2O3 Reinforced Aluminium 6061-T6 Hybrid Matrix Composite

Cited by 29 publications

References 8 publications

Influence of Nanoparticles Reinforcements on Aluminium 6061 Alloys Fabricated via Novel Ultrasonic Aided Rheo-Squeeze Casting Method

Influence of Nanoparticles Reinforcements on Aluminium 6061 Alloys Fabricated via Novel Ultrasonic Aided Rheo-Squeeze Casting Method

Structural and Mechanical Properties of Al-SiC-ZrO2 Nanocomposites Fabricated by Microwave Sintering Technique

Effect of microwave sintering on the microstructure and mechanical properties of Al-Al₂O₃-Si₃N₄ hybrid composite fabricated by powder metallurgy techniques

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Mechanical Properties of SiC, Al2O3 Reinforced Aluminium 6061-T6 Hybrid Matrix Composite

Cited by 29 publications

References 8 publications

Influence of Nanoparticles Reinforcements on Aluminium 6061 Alloys Fabricated via Novel Ultrasonic Aided Rheo-Squeeze Casting Method

Influence of Nanoparticles Reinforcements on Aluminium 6061 Alloys Fabricated via Novel Ultrasonic Aided Rheo-Squeeze Casting Method

Structural and Mechanical Properties of Al-SiC-ZrO2 Nanocomposites Fabricated by Microwave Sintering Technique

Effect of microwave sintering on the microstructure and mechanical properties of Al-Al2O3-Si3N4 hybrid composite fabricated by powder metallurgy techniques

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Product

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Effect of microwave sintering on the microstructure and mechanical properties of Al-Al₂O₃-Si₃N₄ hybrid composite fabricated by powder metallurgy techniques