Plasticity of the C15-CaAl2 Laves phase at room temperature

Conference Dates

October 2 – 7, 2022


Magnesium is a promising material for light-weight applications but its application is strongly limited because of its low room temperature ductility and low creep resistance. By alloying with Al and Ca, the cubic CaAl2-, the hexagonal CaMg2- and the Ca(Mg,Al)2- Laves phases form, which positively influence these properties. Due to their complex packing, the macroscopic deformation of these phases at low homologous temperatures is strongly limited. In order to overcome this restriction and to study their mechanical properties and mechanisms of plasticity, nanomechanical testing, such as nanoindentation and micropillar compression were applied by the authors.

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