Magnesium-based metal matrix nanocomposites—processing and properties

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review

Authors

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 deagglom-eration 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.

Original languageEnglish
Title of host publicationTMS 2018 147th Annual Meeting and Exhibition Supplemental Proceedings
Number of pages13
Place of PublicationCham
PublisherSpringer International Publishing AG
Publication date2018
Pages679-691
ISBN (print)978-3-319-72525-3, 978-3-319-89187-3
ISBN (electronic)978-3-319-72526-0
DOIs
Publication statusPublished - 2018
Externally publishedYes
Event147th Annual Meeting and Exhibition of the Minerals, Metals and Materials Society, TMS 2018 - Phoenix, United States
Duration: 11.03.201815.03.2018
Conference number: 147
https://www.tms.org/tms2018

    Research areas

  • Grain refinement, Mechanical properties, Metal matrix nanocomposite, MMNC, Orowan strengthening
  • Engineering