Comparative Hot Workability Characteristics of an Al–Si/SiCp Aluminium Matrix Composite Hybrid Reinforced with Various TiB2 Additions

Chen, Xinrong; Xu, Zhezhuang; Fu, Dingfa; Zhang, Hui; Teng, Jie; Jiang, Fulin

doi:10.1007/s12540-019-00585-9

Cited by 15 publications

(8 citation statements)

References 48 publications

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“…%TiB2 is increased by 10%, the strength achieves its maximum value, and when the wt % TiB2 is increased by 12.5 percent, the strength decreases. Furthermore, the results reveal that reinforced hybrid nanocomposites have higher tensile strength than unreinforced Aluminium alloys and prior study [16,17] found comparable results. The compressive strength of composite samples revealed in figure 5.…”

Section: Mechanical Properties Evaluation Of Hybrid Nanocompositessupporting

confidence: 52%

Evaluation of mechanical and tribological properties of Aluminium metal matrix composite reinforced with titanium diboride and graphite

Anitha

Rao

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The purpose of this research is to assess mechanical and tribological behavior of Aluminum matrix nanocomposites reinforced with varying weight percentage of 0%, 2.5%, 5%, 7.5%, 10% and 12.5% titanium diboride (TiB2) nano particles and 6% graphite (Gr) nanoparticles through electromagnetic stir casting process. Microstructure analysis were examined using Optical microstructure, Scanning Electron Microstructure, Energy Dispersive Spectrum and phases of reinforced particles in the Aluminium alloy were identified using X-ray diffraction. Mechanical and tribological testing were conducted. Regarding mechanical properties such as tensile strength, flexural strength, compression strength, and wear resistance of all reinforced composite specimens presented enhanced properties than the unreinforced matrix. It was found that the enhanced mechanical properties and wear behavior of the tested specimens of aluminium hybrid nanocomposites has been achieved due to presence of strengthening of hard ceramic nanoparticles of TiB2 in the matrix.

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Section: Mechanical Properties Evaluation Of Hybrid Nanocompositessupporting

confidence: 52%

Evaluation of mechanical and tribological properties of Aluminium metal matrix composite reinforced with titanium diboride and graphite

Anitha

Rao

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Although, the overall properties of hybrid cermets also depend on the fabrication techniques associated with the alloys [16][17][18]. Various fabrication techniques such as infiltration or casting process is being employed for the production of hybrid cermets.…”

Section: Introductionmentioning

confidence: 99%

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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“…In general, adding Gr nanoparticles reduces strength, but adding hard ceramic nanoparticle TiB2, to the matrix base alloy improves the strength. Other researchers [21,25] have observed that these hard ceramic nanoparticles controls movement of obstacles dislocation in matrix base alloy and which leave loop of dislocation around the particles in base alloy.  XRD patterns analyse, Al, TiB2 and Gr peaks presence.…”

Section: Evaluation Of Mechanical Propertiesmentioning

confidence: 95%

“…Whereas, the hybrid cermets overall properties were also influenced with the fabrication methods allied by the alloys [18,19,20]. Numerous casting techniques like stir casting, squeeze casting, compo casting, etc., are more usually used for the production of hybrid cermets which involves the molten base metal as intermediate [21,22]. The amalgamation of oxide particles into molten base metals causes nonuniform dispersion, aggregation, and formation of cluster powders on surfaces [23].To overcome this problem electromagnetic stirrers were further utilized.…”

Section: Introductionmentioning

confidence: 99%

An investigation on microstructure and mechanical behaviour of aluminium hybrid metal matrix nanocomposite fabricated through electromagnetic stir casting process

Anitha

Rao

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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This study focuses on the microstructure characteristics and mechanical properties of unreinforced and reinforced ceramic materials titanium diboride (TiB2) and graphite (Gr). Aluminium hybrid metal matrix nanocomposites reinforced with varying weight percentage of nano TiB2 (0-12.5 wt. %) and nano Gr (4wt %) via electromagnetic stir casting process to produce hybrid nanocomposites samples. Identification of phases and microstructure analysis are performed through X-ray diffraction, Optical Microscope and Scanning Electron Microscope with Energy Dispersion X-ray Spectrum. Mechanical properties such as hardness, tensile, compression and flexural strength were investigated on the prepared hybrid nanocomposites samples. Microstructure images of the samples reveals uniform dissemination of reinforced TiB2 and Gr nanoparticles in Aluminium base matrix and X-ray diffraction confirms the presence of reinforced particles TiB2 and Gr in Aluminium base matrix. Concluded from the consolidated samples, mechanical properties of the reinforced samples improved as compared to the matrix material.

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Comparative Hot Workability Characteristics of an Al–Si/SiCp Aluminium Matrix Composite Hybrid Reinforced with Various TiB2 Additions

Cited by 15 publications

References 48 publications

Evaluation of mechanical and tribological properties of Aluminium metal matrix composite reinforced with titanium diboride and graphite

Evaluation of mechanical and tribological properties of Aluminium metal matrix composite reinforced with titanium diboride and graphite

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

An investigation on microstructure and mechanical behaviour of aluminium hybrid metal matrix nanocomposite fabricated through electromagnetic stir casting process

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