title: "Work-Hardenable" ductile bulk metallic glass.
abstract: Usually, monolithic bulk metallic glasses undergo inhomogeneous plastic deformation and exhibit poor ductility (< 1%) at room temperature. We present a new class of bulk metallic glass, which exhibits high strength of up to 2265 MPa together with extensive "work hardening" and large ductility of 18%. Significant increase in the flow stress was observed during deformation. The "work-hardening" capability and ductility of this class of metallic glass is attributed to a unique structure correlated with atomic-scale inhomogeneity, leading to an inherent capability of extensive shear band formation, interactions, and multiplication of shear bands.
authors.affiliation: FG Physikalische Metallkunde, FB 11 Material- und Geowissenschaften, Technische Universität Darmstadt, Petersenstrasse 23, D-64287 Darmstadt, Germany.
authors.forename: Jayanta
authors.initials: J
authors.lastname: Das
authors.forename: Mei Bo
authors.initials: MB
authors.lastname: Tang
authors.forename: Ki Buem
authors.initials: KB
authors.lastname: Kim
authors.forename: Ralf
authors.initials: R
authors.lastname: Theissmann
authors.forename: Falko
authors.initials: F
authors.lastname: Baier
authors.forename: Wei Hua
authors.initials: WH
authors.lastname: Wang
authors.forename: Jürgen
authors.initials: J
authors.lastname: Eckert