Achieving ultra-strong Magnesium–lithium alloys by low-strain rotary swaging
Yue Yang, Xiang Chen, Jinfeng Nie, Wei Kang, Qingzhong Mao, Fenghua Lu, Yonghao Zhao
Abstract
Severe plastic deformation (SPD) with deformation strain significantly larger than one is effective to strengthen metals and alloys. However, such a method will not work for Mg alloys due to their low deformability. In view of this problem, we propose a new alloy strengthening scheme of low-strain deformation, which is to introduce massive twins and stacking faults in coarse grain interior by rotary swaging (RS) at room temperature. By using this scheme, we successfully prepared an ultra-light bulk Mg-Li alloy with new strength record.
Topics & Concepts
SwagingMaterials scienceDeformation (meteorology)AlloyMetallurgyMagnesiumComposite materialMagnesium Alloys: Properties and ApplicationsAluminum Alloys Composites PropertiesMXene and MAX Phase Materials