title: Structural amorphous steels.
abstract: Recent advancement in bulk metallic glasses, whose properties are usually superior to their crystalline counterparts, has stimulated great interest in fabricating bulk amorphous steels. While a great deal of effort has been devoted to this field, the fabrication of structural amorphous steels with large cross sections has remained an alchemist's dream because of the limited glass-forming ability (GFA) of these materials. Here we report the discovery of structural amorphous steels that can be cast into glasses with large cross-section sizes using conventional drop-casting methods. These new steels showed interesting physical, magnetic, and mechanical properties, along with high thermal stability. The underlying mechanisms for the superior GFA of these materials are discussed.
authors.affiliation: Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6115, USA. luzp@ornl.gov
authors.forename: Z P
authors.initials: ZP
authors.lastname: Lu
authors.forename: C T
authors.initials: CT
authors.lastname: Liu
authors.forename: J R
authors.initials: JR
authors.lastname: Thompson
authors.forename: W D
authors.initials: WD
authors.lastname: Porter