Are the abilities of crystalline alloys to amorphization upon melt quenching and severe plastic deformation identical or different?

摘要

The amorphization behavior of the titanium-nickelide- and zirconium-based crystalline alloys, which differ in the ability to amorphization upon melt quenching, have been studied upon severe plastic deformation. It was found that the ability to deformation-induced amorphization upon severe plastic deformation of crystalline multicomponent alloys is determined by the cumulative ability to deformation induced amorphization of crystalline phases contained in the alloy. It is shown that the parameters characterizing the ability to the formation of amorphous state upon melt quenching and upon highpressure torsion are substantially different and are controlled by different physical parameters. (C) 2016 Elsevier B.V. All rights reserved.