Ultrasonic Grain Refinement of Magnesium and Its Alloys

Ramirez, A.; Qian, Ma

doi:10.5772/12958

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…In addition, high amplitudes of sonication can lead to rapid deterioration of the ultrasonic transducer, resulting in liquid agitation instead of cavitation and in poor transmission of the ultrasound through the liquid medium. At 30 µm amplitude, the generated intensity is approximately 20 times, the threshold required for the development of full cavitation [10]. The incorporation and distribution of nanoparticles are fairly uniform at this amplitude (Fig.…”

Section: It Has Been Established That the Intensity Of Ultrasonic Vib...mentioning

confidence: 88%

Upshot of Ultrasonic Amplitude on Developing the AA6061/SiC Metal Matrix Nanocomposites

Lakshmanan

Kalaichelvan

Balaji

et al. 2015

AMM

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In this work, AA6061/1.25 vol. % SiCp metal matrix nanocomposites (MMNCs) were fabricated using the ultrasonic cavitation assisted casting process. To investigate the effect of ultrasonic amplitudes on processing the MMNCs, the MMNC samples were processed with 15 µm, 30 µm and 50 µm of ultrasonic amplitudes. The results indicate that the ultrasonic amplitudes play a significant role in dispersing the SiC nanoparticles uniformly in the AA6061 melt and it also affecting the mechanical properties of the fabricated MMNCs. The AA6061/1.25 vol. % SiCp MMNC sample processed with 30 µm of ultrasonic amplitude possessed the good dispersion of SiCp in the Al melt and hence better mechanical properties compared to the MMNCs processed with 15 µm and 50 µm amplitudes.

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Section: It Has Been Established That the Intensity Of Ultrasonic Vib...mentioning

confidence: 88%

Upshot of Ultrasonic Amplitude on Developing the AA6061/SiC Metal Matrix Nanocomposites

Lakshmanan

Kalaichelvan

Balaji

et al. 2015

AMM

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“…Previous experimental results showed that ultrasonic assisted casting is one of the proven methods for dispersing nanoparticles in metal matrix. The ultrasonic vibration causes the following phenomena; formation of bubbles within the melt, size growth of bubble, ultrasonic pulsation and bubble bursts in the liquid melt [7][8][9]. While these phenomena take place, the nanoparticles are stuck over the micro bubbles surface.…”

Section: Methodsmentioning

confidence: 99%

Optimizing Ultrasonic Power on Fabricating Aluminum Nanocomposites Reinforced with Boron Carbide Nanoparticles

Poovazhgan

Vijayananth

Sivaganesan

2020

MSF

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In this work, aluminum (Al) alloy reinforced with boron carbide (B4C) nanoparticles were fabricated using ultrasonic assisted casting process. To investigate the effect of ultrasonic power on processing the metal matrix nanocomposites (MMNCs), the MMNC samples were processed with 1.0 kW, 1.5 kW and 2.0 kW of ultrasonic power. The results indicate that the ultrasonic power play a significant role in dispersing the B4C nanoparticles uniformly in Al melt and it also affects the mechanical properties of the fabricated MMNCs. From microstructural analysis it was observed that the MMNC sample processed with 2.0 kW ultrasonic powers possessed the good dispersion of B4C in the Al melt which is the prime criteria for the good mechanical properties.

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Ultrasonic Grain Refinement of Magnesium and Its Alloys

Cited by 2 publications

References 23 publications

Upshot of Ultrasonic Amplitude on Developing the AA6061/SiC Metal Matrix Nanocomposites

Upshot of Ultrasonic Amplitude on Developing the AA6061/SiC Metal Matrix Nanocomposites

Optimizing Ultrasonic Power on Fabricating Aluminum Nanocomposites Reinforced with Boron Carbide Nanoparticles

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