Tailoring the texture of an extruded Mg sheet through constrained groove pressing for achieving low mechanical anisotropy and high yield strength. (September 2020)

• Record Type: Journal Article
• Authors: Hoseini-Athar, M.M.; Mahmudi, R.; Prasath Babu, R.; Hedström, P.
• Is Part Of: Scripta materialia. Number 186(2020)
• Page Start: 253
• Page End: 258
• Publication Date: 2020-09
• Subjects: Constrained groove pressing -- Extrusion -- Magnesium alloys -- Texture; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2020.05.042
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Constrained groove pressing (CGP) was utilized to modify the texture and mechanical properties of extruded Mg–2Gd–3Zn sheet with typical TD (transverse direction)-split texture and pronounced mechanical anisotropy. The texture evolution sequence during CGP was studied and it was observed that a new 〈 1 ¯ 2 1 ¯ 1 〉 component with basal poles rotated 15°–30° toward the extrusion direction (ED) is introduced during CGP, as a result of simultaneous activation of basal and prismatic slip and shear deformation. Finally, a non-basal ED–TD double split texture was obtained after the CGP process, resulting in significantly reduced mechanical anisotropy. Graphical abstract: Image, graphical abstract