Effects of Zn on 〈c + a〉 slip and grain boundary segregation of Mg alloys. (February 2019)

• Record Type: Journal Article
• Authors: Jang, Hyo-Sun; Lee, Byeong-Joo
• Is Part Of: Scripta materialia. Number 160(2019)
• Page Start: 39
• Page End: 43
• Publication Date: 2019-02
• Subjects: Magnesium alloys -- 〈c + a〉 slip -- Grain boundary segregation -- Molecular dynamics (MD) -- Monte Carlo simulation; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.09.022
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Using atomistic simulations, we investigated the effects of Zn on Mg alloys to reveal the mechanism underlying the good ductility and strong basal texture of Mg-Zn solid solutions at room temperature. We found that Zn can activate 〈c + a〉 slip by reducing critical resolved shear stress anisotropy among slip systems that improves ductility and that Zn has a low grain boundary segregation tendency. Because twinning and recrystallization, which have decisive effects on the texture evolution, will not be affected significantly due to the low segregation of Zn, Mg-Zn alloys are expected to yield a texture similar to that of pure Mg. Graphical abstract: