Effect of rotary electromagnetic stirring during solidification of In-situ Al-TiB2 composites

Agrawal, Sarita; Ghose, A. K.; Chakrabarty, I.

doi:10.1016/j.matdes.2016.10.007

Cited by 67 publications

(20 citation statements)

References 52 publications

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“…Also, at a steady-state friction coefficient of 0.6, severe three-body abrasive wear and oxidative wear were the dominant wear mechanism [50]. The salt-metal synthesis route was used to fabricate Al/TiB2 in situ composites [51]. With EMS microstructure characterization, 80 to 90% of the TiB2 particles were found to be in the range of 100-150 nm.…”

Section: Tib2 Reinforced Aluminum-based Metal Matrix Compositesmentioning

confidence: 99%

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A consequence of reinforcements in aluminum-based metal matrix composites: a literature review

Rathod¹,

Menghani

2019

Metall Mater Eng

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In the recent era, Metal Matrix Composites (MMCs) are one of the most vigorously studied topics in material science. Lightweight metals and its alloys create an intense attraction for tailoring new metal matrix composites to overcome conventional limitations like low strength. Aluminum metal matrix composites signify to the high-grade lightweight high-performance aluminum-based MMCs. The reinforcements in aluminum matrix composites could be in the form of particulates, whiskers, and continuous fiber or discontinuous fiber, where weight or volume fraction varies from a few percentages to 60%. Properties of aluminum metal matrix composites can be customized as per the demand of the industry by getting the appropriate combination of the metal matrix, reinforcements, and selective processing route. Nowadays many grads of aluminum matrix composites are fabricated by different routes where in situ route processing is more attractive compared with conventional ex-situ process because it delivers excellent wettability, thermally stability of reinforcements, the bonding strength between reinforcements and matrix, cohesive atomic structure, and fine grain size of reinforcements (specifically nano size). The devoted research work of aluminum matrix composites during the last three-decade generates a wealth of knowledge on the effect of reinforcements vis-à-vis mechanical, chemical, tribological properties of aluminum matrix composites. The acceptance of the aluminum matrix composites as engineering materials depends not only on the performance advantages of the composites, but it also depends upon the cheap, easy, and familiar fabrication technologies for these tailored materials.

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Section: Tib2 Reinforced Aluminum-based Metal Matrix Compositesmentioning

confidence: 99%

“…The distribution of TiB2 particles was almost homogenously near the solidified casting. Due to favorable microstructure features, consequent improvements in mechanical properties like hardness, tensile, and wear properties were achieved [51].…”

Section: Tib2 Reinforced Aluminum-based Metal Matrix Compositesmentioning

confidence: 99%

A consequence of reinforcements in aluminum-based metal matrix composites: a literature review

Rathod¹,

Menghani

2019

Metall Mater Eng

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“…Excellent shock reliability with enhanced yield strength, tensile strength, and elongation has been obtained with the addition of Al as illustrated by Maslinda et al [24]. Another attractive technique is the application of rotating magnetic field (RMF) during solidification of metallic alloys in order to enhance the drop resistance of the solder joints [25][26][27][28][29]. The RMF could have an effect on the flow and solidification actions of molten metal by producing Lorentz forces and thus could have an impact on microstructure and performance [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Novel low Ag-content Sn–Ag–Cu–Sb–Al solder alloys with enhanced elastic compliance and plastic energy dissipation ability by applying rotating magnetic field

El-Taher

Azeem

Ibrahiem

2021

J Mater Sci: Mater Electron

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The main scope of this research is to investigate the impact of rotating magnetic field (RMF) on the physical properties of the Sn-0.5Ag-0.5Cu-2.0Sb-0.1Al (SAC0505SbAl) solder alloy. The application of RMF during molten alloy cooling showed prominent effect on the morphology, thermal properties, and the consequent mechanical characteristics. It was shown that the dendritic morphology was changed from columnar dendrites to equiaxed grains with the application of RMF. In addition, RMF processing modified the eutectic phases in the alloy matrix. These notable modifications have resulted in a substantial increase in ductility (* 30%) with a slight decrease in tensile parameters (UTS and YS). Such effects could enhance elastic compliance and plastic energy dissipation ability of solder alloys, which plays superbly fundamental function in drop-impact reliability. Differential scanning calorimetry (DSC) analysis reveals that significant decrease in pasty range (from 10.8 to 7.5°C) and undercooling (from 13.1 to 9.0°C) was attained after applying RMF. The stress exponent (n), the activation energy (Q), and deformation mechanism of the SAC0505SbAl alloy processed with and without RMF were discussed in detail. The obtained results are certainly expected to fill the knowledge gap about the behavior of these recently developed solder alloys under the effect of RMF that are potential alternatives as Pb-free interconnecting material in microelectronic packaging industry.

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“…The preparation of a semisolid billet is an indispensable step for the SSSC process. Electromagnetic stirring (EMS) is a contactless technique commonly applied to produce forced convection and adjust fluid flow during the solidification of the metal melt, which has become one of the main methods for the production of semisolid slurry or billets [ 25 , 26 ]. EMS works similar to the induction motor, which contains a stator and a rotor [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation and Optimization of the Semisolid Multicavity Squeeze Casting Process for Wrought Aluminum Alloy Scroll

2020

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Scroll compressors are popularly applied in air-conditioning systems. The conventional fabrication process causes gas and shrinkage porosity in the scroll. In this paper, the electromagnetic stirring (EMS)-based semisolid multicavity squeeze casting (SMSC) process is proposed for effectively manufacturing wrought aluminum alloy scrolls. Insulation temperature, squeeze pressure, and the treatment of the micromorphology and mechanical properties of the scroll were investigated experimentally. It was found that reducing the insulation temperature can decrease the grain size, increase the shape factor, and improve mechanical properties. The minimum grain size was found as 111 ± 3 μm at the insulation temperature of 595 °C. The maximum tensile strength, yield strength, and hardness were observed as 386 ± 8 MPa, 228 ± 5 MPa, and 117 ± 5 HV, respectively, at the squeeze pressure of 100 MPa. The tensile strength and hardness of the scroll could be improved, and the elongation was reduced by the T6 heat treatment. The optimal process parameters are recommended at an insulation temperature in the range of 595–600 °C and a squeeze pressure of 100 MPa. Under the optimal process parameters, scroll casting was completely filled, and there was no obvious shrinkage defect observed inside. Its microstructure is composed of fine and spherical grains.

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Effect of rotary electromagnetic stirring during solidification of In-situ Al-TiB2 composites

Cited by 67 publications

References 52 publications

A consequence of reinforcements in aluminum-based metal matrix composites: a literature review

A consequence of reinforcements in aluminum-based metal matrix composites: a literature review

Novel low Ag-content Sn–Ag–Cu–Sb–Al solder alloys with enhanced elastic compliance and plastic energy dissipation ability by applying rotating magnetic field

Experimental Investigation and Optimization of the Semisolid Multicavity Squeeze Casting Process for Wrought Aluminum Alloy Scroll

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