The plausibility of <c + a> dislocation slip on {-12-11} planes in Mg. (November 2018)

• Record Type: Journal Article
• Authors: Zhang, Jiadong; Zhang, Yong; El-Awady, Jaafar A.; Tang, Yizhe
• Is Part Of: Scripta materialia. Number 156(2018)
• Page Start: 19
• Page End: 22
• Publication Date: 2018-11
• Subjects: dislocations -- Cross-slip -- Hexagonal close-packed -- Magnesium -- Non-basal slip; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.07.007
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Here, the slip behavior of < c + a > screw dislocations on first-order and second-order pyramidal planes in Mg are systematically investigated. Slip or/and cross-slip on six low Miller-Bravais-index planes, including two new {-12-11} planes that have hitherto not been considered possible, are all observed. This new slip system has a low Peierls stress and generalized stacking fault energy, suggesting that it might be an easy mode. The active cross-slip and new slip system provide new insight into the plasticity mechanisms of Mg. Graphical abstract: Unlabelled Image