Effects of Al on microstructure and mechanical properties of hot-extruded Mg–3Nd alloys. Issue 3 (11th February 2023)

• Record Type: Journal Article
• Authors: Yu, Peichen; Wang, Lei; Wang, Liping; Feng, Yicheng; Fu, Yuanke; Zhao, Sicong; Guo, Erjun; Wang, Zhiwei
• Is Part Of: Materials science and technology. Volume 39:Issue 3(2023)
• Page Start: 381
• Page End: 391
• Publication Date: 2023-02-11
• Subjects: Mg–3Nd alloy -- hot extrusion -- microstructure -- recrystallisation -- mechanical properties; Materials science -- Periodicals; Microstructure -- Periodicals; Metallurgy -- Periodicals; 620.1105
• DOI: 10.1080/02670836.2022.2116873
• Languages: English
• ISSNs: 0267-0836

Abstract

Abstract : The effects of Al content on microstructure, texture, and mechanical properties of as-extruded Mg–3Nd alloy were investigated. The particle stimulated nucleation effect of Al2 Nd and Al11 Nd3 phases promotes dynamic recrystallisation and the texture is weakened of the as-extruded alloys. With the increase in Al content in the alloys, the microstructure transformed from a bimodal structure to an almost fully recrystallised structure. Grain refinement, the distribution of the second phases, and texture are important factors determining the mechanical properties of as-extruded alloys. As-extruded Mg–3Nd–3Al achieved a good balance of strength and plasticity. The ultimate tensile strength, yield strength, and elongation are 283, 221.3 MPa, and 15.7%, respectively.