Oxidation induced ductility enhancement of Zr based metallic glass ribbons in vicinity of glass transition temperature

Abstract

Compared to traditional polycrystalline alloys, bulk metallic glasses (BMGs) exhibit unique physical, chemical, and mechanical properties and have attracted much attention for opening opportunities for fundamental research and practical engineering applications [1][2][3] . Super plastic deformation could be achieved in the super cooled liquid region, therefore, metallic glasses are engaged to make sub-micrometer-sized gears [4] , linear actuators and other microdevices by high temperature near net shape forging [5] . Open air forging is preferred if the oxygen in air has little deteriorative effect on the final products during the forming processes. Therefore,