Viscoelastic behavior of a novel aluminum metal matrix composite and comparison with pure aluminum, aluminum alloys, and a composite made of Al–Mg–Si alloy reinforced with SiC particles

Rojas, Jose I.; Siva, B. Venkata; Sahoo, K L; Crespo, Daniel

doi:10.1016/j.jallcom.2018.02.103

Cited by 42 publications

(13 citation statements)

References 21 publications

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“…Figure 5 shows the Storage Modulus (GPa) data of AA7075 alloy and Al-5%EAFD composite as a function of temperature at 1Hz (quasi-static condition). The addition of EAFD into Al matrix has significant contributuion to improve Young's modulus since the embedded reinforcement particles are stiffer than the matrix 34 . Temperature increase (150-270°C) leads in a increase in Young's modulus values because foster precipitation hardening 34 .…”

Section: Resultsmentioning

confidence: 99%

“…The addition of EAFD into Al matrix has significant contributuion to improve Young's modulus since the embedded reinforcement particles are stiffer than the matrix 34 . Temperature increase (150-270°C) leads in a increase in Young's modulus values because foster precipitation hardening 34 . The results obtained are similar with results of Young's modulus determined by UltraMicro Hardness tester at room temperature.…”

Section: Resultsmentioning

confidence: 99%

“…The results obtained are similar with results of Young's modulus determined by UltraMicro Hardness tester at room temperature. The effect of temperature and other reinforcements are reported in literature 25,34,35 .…”

Section: Resultsmentioning

confidence: 99%

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Study on Effect of EAFD Particulate Reinforcement in AA7075 Aluminum Matrix Composites

et al. 2018

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Eletric arc furnace dust is dangerous solid waste that is generated in steel manufacturing processes. The utilization of the dust from these industries avoids disposing it into industrial waste landfills and saves costs. In this study, an attempt has been made to fabricate aluminum matrix composites reinforced with EAFD particulate, throught the conventional powder metallurgy technique. Al-5%EAFD proposed was then compared to the AA7075 alloy, manufactured under the same conditions. According to the results obtained, the addition of EAFD into aluminum matrix resulted in increased microhardness values and had significant contributuion to improve Storage modulus compared with the base metal. The reinforcement particle was uniformly dispersed into the matrix and intermetallic phases were not observed in the content of waste blended into the composite.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Study on Effect of EAFD Particulate Reinforcement in AA7075 Aluminum Matrix Composites

et al. 2018

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“…Subsequently, cloth polishing was applied using fine Al 2 O 3 powder. The samples were then polished with Silvo solution, consisting of iso-propyl alcohol, ammonium hydroxide, and SiO 2 powder, which was used for cleaning and suspending the tarnish on surfaces and also to protect from oxidation [12]. Finally, the samples were etched by an acid solution of 0.5% HF and 99.5% H 2 O.…”

Section: Methodsmentioning

confidence: 99%

Effect of Heat Treatment on the Microstructure and Mechanical Properties of a Composite Made of Al-Si-Cu-Mg Aluminum Alloy Reinforced with SiC Particles

Yan

Wang

et al. 2019

Metals

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In this paper, the effect of heat treatment (solution treatment and artificial aging) on the microstructure and properties of as-cast Al5Si1Cu0.5Mg aluminum alloy and its composite reinforced with 1.5 wt.% SiC particles was studied. The results showed that at 520 • C the optimal solution time for the aluminum alloy and its composite is 9 h and 6 h, respectively. After solution treatment, the microstructure of these two materials consists of a uniform distribution of nearly spherical eutectic Si and skeletal γ phase, furthermore, the composite eutectic Si phase is smaller and γ phase is more dispersed. After artificial aging at 175 • C for 6 h, the microstructure of the composite is more dispersed and finer than that of the aluminum alloy on the whole and Al 2 Cu is precipitated. After heat treatment, the microhardness, ultimate tensile strength, and elongation of the aluminum alloy and its composite are higher than those of the as-casts. At the same time, the morphology of tensile fracture surface changes very much from a large area of cleavage plane to a large number of dimples and the tearing ridges become thicker for both the aluminum alloy and its composite.Metals 2019, 9, 1205 2 of 10 intermetallic phases, such as Al 2 Cu, some phases containing copper and magnesium elements, and for changing the morphology of eutectic silicon phase; (ii) quenching, usually at room temperature, to obtain a supersaturated solid solution; (iii) age hardening, namely, the precipitation of different types of precipitated phases such as Mg 2 Si, Al 2 Cu and Al 5 Mg 8 Si 6 Cu 2 from the supersaturated solid solution either at room temperature (natural aging) or at an elevated temperature (artificial aging). During T6 heat treatment, many researchers [7,10,11] found that solution time, aging time, aging temperature, and some other parameters have a great influence on the microstructure and properties of aluminum alloys. For example, Costa et al. [7] found that for a directionally solidified Al-Si-Cu alloy, the profile of secondary dendrite arm spacing values obtained along the length of the DS casing increased only when the solution time adopted in the T6 heat treatment was increased from 5 to 8 h. They also found that the samples heat treated with a solution time of 8 h exhibited a decrease in hardness when compared to that of samples subjected to a solution time of 5 h, which may be associated with the corresponding increase in the dendritic arm spacing, coarsening of Si particles, and collapse of tertiary dendritic arms that makes the dendritic network less complex. Ceschini et al. [11] found that the hardness, yield strength, and ultimate tensile strength of as-cast CAl5Si1Cu0.5Mg alloy, the chemical composition of which is similar to that of Al5Si1Cu0.5Mg alloy, were obviously reduced after overaging treatment, which was mainly caused by the coarsening of precipitated phases in the crystal. Thus, it is of importance to select the parameters of heat treatment to improve microstructure and mechanical properties of aluminum alloy...

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“…The viscoelastic response of these aluminium MMCs shows the most stable behaviour and a rapid decrease in its stiffness is seen only at very high temperature. Aluminium MMCs also show higher stiffness and higher mechanical damping/internal friction when compared to pure aluminium [10].…”

Section: Introductionmentioning

confidence: 99%

Characterization of aluminium metal matrix composite fabricated by gas injection bottom pouring vacuum multi-stir casting process

Kataria¹,

Mangal²

2018

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In the present work, a newly developed gas injection bottom pouring vacuum stir casting technique has been envisaged for the fabrication of Aluminium MMCs which is a fully automated and one of its kind. Aluminium 6063-T6 alloy is used as the matrix, and the aluminium oxide (Al2O3) particles are taken as reinforcement. Different experiments have been performed on the fabricated MMCs to ascertain its mechanical and morphological properties. The presence of various elements and grain morphology of the fabricated MMCs are confirmed by Energy Dispersive Spectroscopy (EDS), Scanning Electron Microscope (SEM) and mapping. The experimental results revealed that the hardness of Al/Al2O3MMC had increased by 1.71 times and maximum tensile strength had increased by 1.27 times in comparison to the monolithic aluminium alloy. The results establish that the proposed methodology of MMC fabrication can be effectively utilized for fabrication of homogeneously reinforced MMCs for various engineering and industrial applications.

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Viscoelastic behavior of a novel aluminum metal matrix composite and comparison with pure aluminum, aluminum alloys, and a composite made of Al–Mg–Si alloy reinforced with SiC particles

Abstract: behavior of a novel aluminum metal matrix composite and comparison with pure aluminum, aluminum alloys, and a composite made of Al-Mg-Si alloy reinforced with SiC particles,

Cited by 42 publications

References 21 publications

Study on Effect of EAFD Particulate Reinforcement in AA7075 Aluminum Matrix Composites

Study on Effect of EAFD Particulate Reinforcement in AA7075 Aluminum Matrix Composites

Effect of Heat Treatment on the Microstructure and Mechanical Properties of a Composite Made of Al-Si-Cu-Mg Aluminum Alloy Reinforced with SiC Particles

Characterization of aluminium metal matrix composite fabricated by gas injection bottom pouring vacuum multi-stir casting process

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