A novel method for improving the strength and ductility of Mg–Y–Er–Zn alloy using rotary-die equal-channel angular pressing
Haoran Wu, Jinghua Jiang, Huan Liu, He Huang, Yuhua Li, Jiaying Chen, Aibin Ma
Abstract
A novel method was developed via the continuous refinement of grains to prepare an Mg–6.5Y–1.2Er–1.6Zn (wt.%) alloy with a ductility of 35% and an ultimate tensile strength of 377 MPa. It involved the use of a 32-pass equal-channel angular pressing process. The strength and ductility of the obtained magnesium alloy after the rapid processing were improved by 188.5% and 700%, respectively, compared with an as-cast alloy. These improvements are attributed to the refined 14H-LPSO, uniform distribution of the spheroidized second phase, and a large number of dynamic recrystallized grains.
Topics & Concepts
Materials sciencePressingAlloyDuctility (Earth science)Ultimate tensile strengthDie (integrated circuit)MetallurgyMagnesium alloyComposite materialNanotechnologyCreepMagnesium Alloys: Properties and ApplicationsAluminum Alloys Composites PropertiesAdvanced Welding Techniques Analysis