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Erschienen in:

2018 | OriginalPaper | Buchkapitel

Magnesium-Based Metal Matrix Nanocomposites—Processing and Properties

verfasst von : Hajo Dieringa, Norbert Hort

Erschienen in: TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings

Verlag: Springer International Publishing

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Abstract

It is well known that magnesium alloys reinforced with ceramic particles of micro-scale sizes give increased hardness and wear resistance. However, such particles need to be smaller to improve the strength, ductility and creep resistance of alloys. The optimum size of particles for Orowan strengthening is a diameter less than 100 nm. Not only the size of particles, but also their chemical composition and the composition of the alloy are important for the beneficial effect of nanoparticles. The mechanical properties can be tailored with much fewer nanoparticles compared to microparticles, because the interparticle spacing is much smaller. However, with large surface areas compared to their weight and low wettability, any deagglomeration of the nanoparticles in a magnesium melt is difficult to achieve and so requires additional processing, such as by electromagnetic or ultrasound-assisted stirring. This paper presents a short review and some original work on ceramic nanoparticle reinforced magnesium alloys and their properties.

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Titel: Magnesium-Based Metal Matrix Nanocomposites—Processing and Properties
verfasst von: Hajo Dieringa
Norbert Hort
Verlag: Springer International Publishing
Buch: TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings
Print ISBN: 978-3-319-72525-3

Electronic ISBN: 978-3-319-72526-0

Copyright-Jahr: 2018
DOI: https://doi.org/10.1007/978-3-319-72526-0_64

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