[HTML][HTML] Micromechanical response of pure magnesium at different strain rate and temperature conditions: twin to slip and slip to twin transitions

NM della Ventura, P Schweizer, A Sharma, M Jain… - Acta Materialia, 2023 - Elsevier
The strain rate (ε˙) and temperature (T) dependent mechanical response of single crystal
magnesium (Mg) micropillars compressed along the [2¯ 110] direction (a-axis) is …

[HTML][HTML] Temperature dependent critical stress for {101¯ 2} twinning in magnesium micropillars at cryogenic temperatures

NM della Ventura, C Tian, A Sharma, TEJ Edwards… - Scripta Materialia, 2023 - Elsevier
Single-crystal magnesium micropillars (5 µm diameter) have been fabricated using focused
ion beam (FIB) milling and loaded in compression along the [2 1¯ 1¯ 0] direction at …

Anomalous hardening in magnesium driven by a size-dependent transition in deformation modes

GD Sim, G Kim, S Lavenstein, MH Hamza, H Fan… - Acta Materialia, 2018 - Elsevier
Here, we report a comprehensive study that combines in situ scanning electron microscopy
experiments and atomistic simulations to quantify the effect of crystal size on the …

Micropillar and macropillar compression responses of magnesium single crystals oriented for single slip or extension twinning

KE Prasad, K Rajesh, U Ramamurty - Acta materialia, 2014 - Elsevier
Uniaxial compression experiments were conducted on two magnesium (Mg) single crystals
whose crystallographic orientations facilitate the deformation either by basal slip or by …

Experimentally quantifying critical stresses associated with basal slip and twinning in magnesium using micropillars

Y Liu, N Li, MA Kumar, S Pathak, J Wang, RJ Mccabe… - Acta Materialia, 2017 - Elsevier
Abstract Basal slip and {01 1¯ 2} twinning are two major plastic deformation mechanisms in
hexagonal closed-packed magnesium. Here we quantify the critical stresses associated with …

Effect of temperature on the transition in deformation modes in Mg single crystals

GD Sim, KY Xie, KJ Hemker, JA El-Awady - Acta Materialia, 2019 - Elsevier
Here, an experimental study utilizing in-situ scanning electron microscopy (SEM) micro-
compression testing and post-mortem transmission electron microscopy (TEM) imaging is …

[HTML][HTML] An efficient temperature-dependent crystal plasticity framework for pure magnesium with emphasis on the competition between slip and twinning

Y Hollenweger, DM Kochmann - International Journal of Plasticity, 2022 - Elsevier
Experimental evidence suggests that the formation of compressive twin bands and the
associated strain localization is a key driver behind the low ductility of magnesium (Mg) at …

Phenomenological crystal plasticity modeling and detailed micromechanical investigations of pure magnesium

J Zhang, SP Joshi - Journal of the Mechanics and Physics of Solids, 2012 - Elsevier
We present a single crystal plasticity model for pure Mg incorporating slip and deformation
twinning. The model uses the basic framework of Kalidindi (1998), but proposes constitutive …

[HTML][HTML] In-situ TEM observation of {101 2} twin-dominated deformation of Mg pillars: Twinning mechanism, size effects and rate dependency

J Jeong, M Alfreider, R Konetschnik, D Kiener, SH Oh - Acta Materialia, 2018 - Elsevier
To investigate the mechanism of {10 1¯ 2} twinning in magnesium (Mg) single crystal and its
influence on mechanical size effects and strain rate dependent deformation behavior, in-situ …

Small volume investigation of slip and twinning in magnesium single crystals

GS Kim - 2011 - theses.fr
Résumé A combined experimental and computational investigation of the deformation
behavior of pure magnesium single crystal at the micron length scale has been carried out …