Role of yttrium in activation of 〈c + a〉 slip in magnesium: An atomistic approach. (November 2015)

• Record Type: Journal Article
• Authors: Kim, Ki-Hyun; Jeon, Jong Bae; Kim, Nack Joon; Lee, Byeong-Joo
• Is Part Of: Scripta materialia. Volume 108(2015)
• Page Start: 104
• Page End: 108
• Publication Date: 2015-11
• Subjects: Mg alloy -- Yttrium -- 〈c + a〉 slip -- Critical resolved shear stress -- Molecular dynamics; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.06.028
• Languages: English
• ISSNs: 1359-6462

Abstract

Graphical abstract: Abstract: The effect of Y addition on the slip behavior of an edge dislocation on basal, prismatic and second-order pyramidal slip planes of Mg has been investigated using a molecular dynamics simulation. It is found that Y increases the critical resolved shear stress of basal slip more than that of non-basal slip and eventually reduces the difference in the CRSS between different slip systems, which is proposed as the reason for the experimentally reported activation of 〈 c + a 〉 slip in Mg–Y alloys.