|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Integrative Materials Design III: Performance and Sustainability
||Magnesium Based Metal Matrix Nanocomposites - Processing and Properties
||Hajo Dieringa, Norbert Hort
|On-Site Speaker (Planned)
It is well known that magnesium alloys reinforced with ceramic particles at micro-scale sizes have increased hardness and wear resistance. However, to improve their strength, ductility and creep resistance the particles have to be smaller. The optimum size of particles for Orowan strengthening is a diameter less than 100 nm. Not only the size of particles, but also its chemical composition and the alloy composition is of importance for the effect of nanoparticles. Mechanical properties can be tailored with significantly lower amount of nanoparticles compared to micronparticles, because the interparticle spacing is much smaller. With a large surface area 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, like electromagnetic or ultrasound assisted stirring. This paper presents a short review and own work on ceramic nanoparticle reinforced magnesium alloys and their properties.
||Planned: Supplemental Proceedings volume