Microstructure and Mechanical Property Development in a Hot-rolled and Annealed Mg-5Li-1Al Alloy Sheet. Issue 12 (December 2018)

• Record Type: Journal Article
• Authors: Ruihong, Li; Zhijun, Chen; Bin, Jiang; Fusheng, Pan
• Is Part Of: Xi you jin shu cai liao yu gong cheng. Volume 47:Issue 12(2018)
• Page Start: 3640
• Page End: 3644
• Publication Date: 2018-12
• Subjects: microstructure -- mechanical property -- Mg-Li alloy -- hot-rolling -- annealing; Nonferrous metals -- Periodicals; 669.05
• DOI: 10.1016/S1875-5372(19)30011-6
• Languages: English
• ISSNs: 1875-5372

Abstract

Abstract: Mg-5Li-1Al magnesium alloy sheets processed by hot rolling were annealed at 150 and 300 °C for 30 min. The microstructure, mechanical properties, and texture of the rolled and annealed Mg-5Li-1Al alloy sheet were investigated. The plastic deformation mechanism was also discussed. The results show that the annealed sheet possesses weak basal texture and homogenous recrystallized structure with grain size of ∼15 μm. Increasing annealing temperature results in an increase in tensile elongation and a decrease in tensile strength, yield strength and yield ratio, which generally favor the improvement of sheet formability. The rolled LA51 sheet after annealing at 300 °C exhibits improved mechanical properties due to Li addition and high annealing temperature.