A novel extrusion approach, entitled slope extrusion (SE), was employed to manufacture AZ31 (Mg–3Al–1Zn, wt％) alloy sheets. The microstructures, textures, and mechanical properties were investigated, compared with those of the AZ31 sheet fabricated by conventional extrusion (CE). Through the combination of finite element simulation and actual experiment, the ultimate results indicated that significant grain refinement (from 9.1 to 7.7 and 5.6 μm) and strong basal texture (from 12.6 to 17.6 and 19.5 mrd) were achieved by the SE process. The es-sence was associated with the additional introduced inclined interface in the process of SE, which could bring about more asymmetric deform-ation and stronger accumulated strain along the ND when compared with the process of CE. As a consequence, the SE sheets exhibited a high-er yield strength (YS) and ultimate tensile strength (UTS) than the counterparts of the CE sheet, which was mainly assigned to the synergistic effects from grain refining and texture strengthening.

Huabao Yang;Yanfu Chai;Bin Jiang;Chao He;Junjie He;Qingshan Yang;Ming Yuan

School of Mechanical and Electrical Engineering,Shaoxing University,Shaoxing 312000,China;Tianjin Key Laboratory of Composite&Functional Materials,School of Materials Science and Engineering,Tianjin University,Tianjin 300072,China;State Key Laboratory of Mechanical Transmissions,College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China;College of Materials Science and Engineering,Yunnan University,Kunming 650091,China;School of Metallurgy and Material Engineering,Chongqing University of Science and Technology,Chongqing 401331,China

矿物冶金与材料学报

[1]Huabao Yang;Yanfu Chai;Bin Jiang;Chao He;Junjie He;Qingshan Yang;Ming Yuan-.Enhanced mechanical properties of Mg–3Al–1Zn alloy sheets through slope extrusion)[J].矿物冶金与材料学报,2022(07):1343-1350

mrd

Enhanced,mechanical,properties,Mg,3Al,1Zn,alloy,sheets,through,slope,extrusion,novel,approach,entitled,SE,was,employed,manufacture,AZ31,wt,microstructures,textures,were,investigated,compared,those,fabricated,by,conventional,CE,Through,combination,finite,element,simulation,actual,experiment,ultimate,results,indicated,that,significant,grain,refinement,from,basal,achieved,process,sence,associated,additional,introduced,inclined,interface,which,could,bring,about,more,asymmetric,deform,stronger,accumulated,strain,along,ND,when,consequence,exhibited,high,yield,YS,tensile,UTS,than,counterparts,mainly,assigned,synergistic,effects,refining,strengthening

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