High ductility bulk nanostructured Al–Mg binary alloy processed by equal channel angular pressing and inter-pass annealing. (August 2015)

• Record Type: Journal Article
• Authors: Zha, Min; Li, Yanjun; Mathiesen, Ragnvald H.; Bjørge, Ruben; Roven, Hans J.
• Is Part Of: Scripta materialia. Volume 105(2015)
• Page Start: 22
• Page End: 25
• Publication Date: 2015-08
• Subjects: Equal channel angular pressing -- Bulk nanostructured -- Strength -- Ductility -- Microstructure; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.04.018
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : Bulk nanostructured (NS) metallic materials usually have high strength but extremely low ductility. In this study, we successfully prepared a bulk NS binary Al–7 Mg alloy possessing both high strength and high uniform ductility, approaching ∼600 MPa and ∼14%, respectively, by utilizing room temperature equal channel angular pressing (ECAP) combined with inter-pass annealing. The mechanism that governs the high ductility in the alloy and especially the role of the high Mg solute concentration was explored in terms of microstructure analysis.