Ultrasonic assisted grain refinement of Al–Mg alloy using in-situ MgAl2O4 particles

Harini, RS and Nampoothiri, J and Nagasivamuni, B and Raj, Baldev and Ravi, KR (2015) Ultrasonic assisted grain refinement of Al–Mg alloy using in-situ MgAl2O4 particles. Materials Letters, 145. pp. 328-331.

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    Abstract: MgAl2O4 particles were in-situ synthesised in Al–Mg melts using SiO2 precursor assisted by ultrasonic treatment (UT). 7 to 8 Fold reduction in grain size is achieved in Al–1Mg–0.1SiO2 alloy subjected to 5 min UT. Reason behind the grain reduction is explained in terms of ultrasonic cavitation activated SiO2 reduction reaction, thereby increasing the number density of MgAl2O4 particles and their wettability.
    Item Type: Article
    Additional Information: Copyright belongs to Publisher
    Subjects: General > Director > Baldev Raj > Publications
    Depositing User: K Rajesh
    Date Deposited: 05 Jan 2016 07:29
    Last Modified: 05 Jan 2016 07:29
    URI: http://eprints.nias.res.in/id/eprint/732

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