Structure and mechanical properties of Al–Mg alloys produced by copper mold casting

Scudino, Sergio; Sakaliyska, Miroslava; Surreddi, Kumar Babu; Ali, Fahad; Eckert, J.

doi:10.1016/j.jallcom.2010.03.208

Cited by 12 publications

(7 citation statements)

References 23 publications

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“…Particulate reinforced metal matrix composites (MMCs) are attractive due to their isotropic properties, easier processing routes and lower costs compared to the other metal matrix composites [19]. Various particulate reinforcements, such as ceramic [20,21], metallic glasses [22], quasicrystals [23,24], and complex metallic alloys [25] have been used to produce aluminum and magnesium-based matrix composites with enhanced properties through casting [26,27], metal infiltration [28,29], friction stir forming [30] and powder metallurgy [31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Behavior of Al-Mg Composites Synthesized by Reactive Sintering

Shahid

Scudino

2018

Metals

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Lightweight metal matrix composites are synthesized from elemental powder mixtures of aluminum and magnesium using pressure-assisted reactive sintering. The effect of the reaction between aluminum and magnesium on the microstructure and mechanical properties of the composites due to the formation of β-Al3Mg2 and γ-Al12Mg17 intermetallics is investigated. The formation of the intermetallic compounds progressively consumes aluminum and magnesium and induces strengthening of the composites: the yield and compressive strengths increase with the increase of the content of intermetallic reinforcement at the expense of the plastic deformation. The yield strength of the composites follows the iso-stress model when the data are plotted as a function of the intermetallic content.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Behavior of Al-Mg Composites Synthesized by Reactive Sintering

Shahid

Scudino

2018

Metals

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“…This is why a considerable attention has been given by metallurgist in developing Al-Mg alloys because of the possibilities of their uses in electrical industry, roofing sheets, vehicle paneling etc. [4] [5] [6] [7]. The Al-Mg alloys in liquid state had also been studied by theoreticians [8] [9] in the past.…”

Section: Introductionmentioning

confidence: 99%

Thermo-Physical Properties of Al-Mg Alloy in Liquid State at Different Temperatures

Yadav¹,

Jha²,

Dhungana³

et al. 2018

MSA

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Thermo-physical properties of Al-Mg alloys in molten state at 1073 K have been studied using thermodynamic modeling. Thermodynamic properties, such as free energy of mixing, heat of mixing, entropy of mixing, activities and structural properties, such as concentration fluctuation in long wavelength limit, Warren-Cowely short range order parameter have been studied at 1073 K, 1173 K, 1273 K and 1373 K on the basis of regular associated solution model. The surface properties such as surface concentrations and surface tension of the liquid alloys have been studied by using Butler's model. A consistent set of model parameters have also been obtained by using optimization procedure based on statistical thermodynamics. Our analysis reveals that Al-Mg alloy is moderately interacting and it shows ordering nature at 1073 K. The nature of the alloys changes from ordering to segregating as the temperature increases.

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“…Based on the relatively high Ag-content, one could expect positive antibacterial properties leading to decreasing survival rates of pathogenic bacteria. The effect is based on the release of Ag-ions causing damage to the bacterial membrane, which in turn disrupts the function of the bacterial enzymes and/or nucleic acids [3,24,25]. The higher Ag-content also led to the formation of a significant volume fraction of interdendritic compound phase and, hence, to the formation of a heterogeneous microstructure.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…By contrast, Ag is an element known to be biocompatible and Ag-additions to Mg increase the hardness and strength of the resulting solid solution [23]. A further measure to increase the strength is casting at high cooling rates, which can lead to the formation of fine-grained microstructures which also consist of oversaturated Mg-based solid solution [24,25]. Another positive property of Ag is its antibacterial effect [8].…”

Section: Introductionmentioning

confidence: 99%

Phase Formation, Microstructure and Mechanical Properties of Mg67Ag33 as Potential Biomaterial

Kosiba

Prashanth

Scudino

2021

Metals

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The phase and microstructure formation as well as mechanical properties of the rapidly solidified Mg67Ag33 (at. %) alloy were investigated. Owing to kinetic constraints effective during rapid cooling, the formation of equilibrium phases is suppressed. Instead, the microstructure is mainly composed of oversaturated hexagonal closest packed Mg-based dendrites surrounded by a mixture of phases, as probed by X-ray diffraction, electron microscopy and energy dispersive X-ray spectroscopy. A possible non-equilibrium phase diagram is suggested. Mainly because of the fine-grained dendritic and interdendritic microstructure, the material shows appreciable mechanical properties, such as a compressive yield strength and Young’s modulus of 245 ± 5 MPa and 63 ± 2 GPa, respectively. Due to this low Young’s modulus, the Mg67Ag33 alloy has potential for usage as biomaterial and challenges ahead, such as biomechanical compatibility, biodegradability and antibacterial properties are outlined.

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Structure and mechanical properties of Al–Mg alloys produced by copper mold casting

Cited by 12 publications

References 23 publications

Microstructure and Mechanical Behavior of Al-Mg Composites Synthesized by Reactive Sintering

Microstructure and Mechanical Behavior of Al-Mg Composites Synthesized by Reactive Sintering

Thermo-Physical Properties of Al-Mg Alloy in Liquid State at Different Temperatures

Phase Formation, Microstructure and Mechanical Properties of Mg67Ag33 as Potential Biomaterial

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