Publication at Faculty of Mathematics and Physics |
2022
Abstract
Two magnesium alloys designed with an emphasis on high flammability resistance (Mg-4Y-4Gd-2Ca and Mg-2Y-2Gd-1Ca, wt. %) were processed by extrusion and subsequently comprehensively investigated. A bimodal microstructure was observed by EBSD.
The size of the recrystallized grains and the degree of recrystallization strongly depended on the processing parameters. TEM secondary phase analysis revealed a large amount of Mg2Ca precipitates and a small amount of RE-containing precipitates.
The developed and analysed microstructural condition resulted in favourable mechanical properties. The studied alloys are therefore promising for the application in aerospace industry.