@article{Maldar2024, 
author = {Alireza Maldar and Leyun Wang and Boyu Liu and Wenjun Liu and Zhaohui Jin and Bijin Zhou and Xiaoqin Zeng},
title = {Activation of <c> dislocations in Mg with solute Y},
year = {2024},
journal = {Journal of Magnesium and Alloys},
volume = {12},
number = {3},
pages = {1045-1053},
url = {https://www.sciopen.com/article/10.1016/j.jma.2021.11.004},
doi = {10.1016/j.jma.2021.11.004},
abstract = {Mg-Y cast alloy shows excellent ductility (elongation to failure> 15%) compared with pure Mg and commercial Mg cast alloys. By monitoring the microstructure evolution during an in situ tensile test of a Mg-2.5 wt%Y alloy, we identify the activation of prismatic <c> slip, which is rare in Mg. Synchrotron X-ray micro-beam Laue diffraction (μ-Laue) and transmission electron microscopy revealed the morphology of prismatic <c> slip bands and individual <c> dislocations. Density functional theory and molecular dynamics calculations indicate that solute Y can significantly reduce the stacking fault energy (SFE) along <c> direction on prismatic plane in Mg lattice and thus facilitate the nucleation of <c> dislocations during deformation. The presence of free <c> dislocations in the Mg lattice can also lead to nucleation of {10–12} twins even under unfavorable geometric conditions.}
}