Microstructure evolution and mechanical properties of Mg-9Li-3Al-2Sr alloy in change channel angular pressing
Abstract
Change channel angular pressing is a specially designed continuous processing technique to prepare bulk ultrafine grained materials. The extrusion process and structure evolution of Mg-9Li- 3Al-2Sr alloy were analysed. The long strip phases of α-Mg and β-Li were sheared into short pieces during extrusion. The continuous distribution Al4Sr phases were extruded into small particles, which are mainly observed in the α/β phase interface and β-Li matrix phase. Structure homogeneity can be achieved, and the mechanical properties were improved with one pass processing. The effect of Al4Sr phase on the microstructure and mechanical properties of Mg-9Li-3Al-2Sr alloy was observed to be different due to the various extrusion modes and parts.
Publication Title
Materials Science and Technology (United Kingdom)
Recommended Citation
Wei, G., Peng, X., Liu, J., Hadadzadeh, A., Yang, Y., & Xie, W. (2015). Microstructure evolution and mechanical properties of Mg-9Li-3Al-2Sr alloy in change channel angular pressing. Materials Science and Technology (United Kingdom), 31 (14), 1757-1763. https://doi.org/10.1179/1743284715Y.0000000002
