Image: Cold rolling of Mg and Mg-1Al-0.1Ca

Description: Pure polycrystalline magnesium failing in a brittle manner already at low deformations, shown here in the rolled state. Pure Mg fractured along macroscopic shear bands when cold rolled to 10% thickness reduction whereas Mg-1Al-0.1Ca could be cold rolled to 54% thickness reduction in several rolling passes of 8% thickness reduction per rolling pass; small sheet sections cut from the rolled sheet after each consecutive rolling pass are presented. Early failure of pure Mg occurs due to the restriction to mainly basal <a> dislocation slip and tensile twinning.
Title: Cold rolling of Mg and Mg-1Al-0.1Ca
Credit: https://www.nature.com/articles/s41598-017-10384-0
Author: S. Sandlöbes et al
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