Work

Plastic deformation of the CaMg2 C14-Laves phase from 50 - 250°C

Year: 2021

Type: article

Abstract: Intermetallic phases can significantly improve the creep resistance of magnesium alloys , extending their use to higher temperatures. However, little is known about the deformation behaviour of these phases at application temperatures, which are commonly below their macroscopic brittle-to-ductile-transition temperature. In this study, we therefore investigate the activation of different slip systems of the CaMg 2 phase and the occurrence of serrated yielding in the temperature range from 50°C to 250°C. A decreasing amount of serrated flow with increasing temperature suggests that solute atoms govern the flow behaviour when the CaMg 2 phase is off-stoichiometric.

Source: Materialia

DOI: 10.1016/j.mtla.2021.101237