The effect of process parameters in Aluminum Metal Matrix Composites with Powder Metallurgy

Vani, Vemula Vijaya; Chak, Sanjay Kumar

doi:10.1051/mfreview/2018001

Cited by 57 publications

(33 citation statements)

References 64 publications

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“…of this phase is 98-010-6255. It is observed in studies involving Al/Al 2 O 3-TiO 2 in the literature that intermediate phases containing aluminum titanium have been formed[16].In our work, after the treatment of the sample at 800 • C, growth mechanism of the intermetallic zone in Al-TiO 2 liquid-solid interface changes following the…”

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confidence: 48%

Properties of Al/Al2O3-TiO2 composites prepared by powder metallurgy processing

Aydın¹,

Birgin²

2021

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In this paper, aluminum metal matrix composite (AMCs) containing Al2O3-TiO2 composite powder in different ratios (5, 10, 15, and 20 wt.%) as a reinforcement material was produced using the powder metallurgy method. This paper aims to research the effect of the alumina-titanium oxide powder ratio on Al/Al2O3-TiO2 composite properties. An experimental study has been carried out on density, hardness, tensile strength, phase, and microstructure characterization of aluminum metal matrix composites. The findings of the experimental investigation reveal that the AMCs with 20 wt.% Al2O3-TiO2 exhibited gradually increased mechanical properties, i.e., Vickers hardness of 56 HV and the tensile strength of 150 MPa. It has been concluded that the density of composites improved with the addition of Al2O3-TiO2 reinforcement. Microstructural observation indicates that the distribution of Al2O3-TiO2 particles is usually near-uniform and homogeneous in the aluminum matrix.

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confidence: 48%

Properties of Al/Al2O3-TiO2 composites prepared by powder metallurgy processing

Aydın¹,

Birgin²

2021

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“…This is attributed to the fact that stir casting process is subjected to a high melting temperature which induces the undesirable interfacial reaction and reduces the surface area of the matrix material to accommodate the reinforcement. Which leads to the agglomeration and segregation of the reinforcement (Vani and Chak, 2018). The other reasons such as resting of reinforcement at the bottom of the crucible due to insufficient mixing and out of the range of the stirrer blade may also be a possible reason for the agglomeration of reinforcement (Vani and Chak, 2018;Malaki et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

Effect of Graphene nanoparticles on microstructural and mechanical properties of aluminum based nanocomposites fabricated by stir casting

Srivastava¹,

Sharma²,

Saju³

et al. 2020

WJE

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Purpose The development of a new class of engineering materials is the current demand for aircraft and automobile companies. In this context metal, composite materials have a widespread application in different areas of manufacturing sectors. Design/methodology/approach In this paper, an attempt is made to develop the aluminium-based nano metal matrix composite reinforced with graphene nanoparticles (GNP) by using the stir casting method. Different weight percentage (0.4%, 0.8% and 1.2% by weight) of GNPs are used to fabricate metal matrix composites (MMCs). The developed nanocomposites were further validated by density calculation and optical microstructures to discuss the distribution of GNPs. The tensile test was conducted to determine the strength of the developed MMCs and also supported by fractographic analysis. In addition to it, the Rockwell hardness test and impact test (toughness) with fracture analysis were also conducted to strengthen the present work. Findings The results reveal the uniform distribution of GNPs into the matrix material. The yield strength and ultimate tensile strength obtained a maximum value of 155.67 MPa and 170.28 MPa, respectively. The hardness value (HRB) is significantly increased and 84 HRB was obtained for the sample with AA1100/0.4% GNP, while maximum hardness value (94 HRB) was obtained for the sample AA1100/1.2% GNP. The maximum value of toughness 14.3 Jules/cm2 is recorded for base alloy AA1100 while increasing the reinforcement percentage, it decreases up to 9.7 Jules/cm2 for AA1100/1.2% GNP. Originality/value Graphene nanoparticles are used to develop nanocomposites, which is one of the suitable alternatives for heavy engineering materials such as steels and cast irons. It has improved microstructural and mechanical properties which makes it preferable for many engineering and structural applications.

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“…The particle size distribution of alumina particles is determined using sieve analysis and the average size was 80 µm. The ceramic element (Al2O3) was chosen as the reinforcement material because it can be used at elevated temperatures, and also with benefits of creep resistance [24]. The chemical analysis of the asreceived Al2O3 particles is presented in Table 2.…”

Section: Methodsmentioning

confidence: 99%

Fabrication of Al Alloy-Based Metal Matrix Composites and Use the Interpolation Approach for Mechanical Properties Estimation

Elwasly

2020

Journal of Petroleum and Mining Engineering

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Aluminum alloy-based metal matrix composites (AMMCs) are extensively utilized due to their distinctive mechanical properties. Al-6%Si alloy was reinforced with different contents of alumina (Al2O3) particles (0, 1.5, 3, 4.5, 6, 7.5, 9, 10.5 and 12% wt.) and the MMCs were prepared by stir casting at 800°C. Microstructural characterization of AMMCs was studied using optical microscopy, to emphasize the homogeneous distribution of the reinforcement particles (Al2O3) in the Al alloy matrix. Hardness and wear tests were used to study the influence of Al2O3 addition on the mechanical properties of the prepared composites. The interpolation method is applied as a perfect alternative approach for saving the consumed time during the experimental work. The used mathematical expression can be utilized for an early prediction of the mechanical properties of AMMCs at different contents of Al2O3 particles without carrying out much experimental analysis. The current study shows that the linear interpolator is the optimal one where it achieved Mean square error (MSE) equals 0.1875, and 0.0119 for hardness and wear loss tests, respectively.

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The effect of process parameters in Aluminum Metal Matrix Composites with Powder Metallurgy

Cited by 57 publications

References 64 publications

Properties of Al/Al2O3-TiO2 composites prepared by powder metallurgy processing

Properties of Al/Al2O3-TiO2 composites prepared by powder metallurgy processing

Effect of Graphene nanoparticles on microstructural and mechanical properties of aluminum based nanocomposites fabricated by stir casting

Fabrication of Al Alloy-Based Metal Matrix Composites and Use the Interpolation Approach for Mechanical Properties Estimation

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