A method of making an aluminum alloy containing zirconium includes heating a first composition comprising aluminum to a first temperature of greater than or equal to about 580 C. to less than or equal to about 800 C. The method further includes adding a second composition including a copper-zirconium compound to the first composition to form a third composition. The copper-zirconium compound of the second composition has a molar composition of greater than or equal to about 41% zirconium to less than or equal to about 67% zirconium and a balance of copper. The method also includes solidifying the third composition at a cooling rate of greater than or equal to about 0.1 C./second to less than or equal to about 100 C./second to a second temperature less than or equal to a solidus temperature and decomposing the copper-zirconium compound at a third temperature of less than or equal to about 715 C.

Systems and methods in accordance with embodiments of the invention implement copper-based materials in applications where resistance to wear is desired. In one embodiment, a wear-resistant gear includes a gear defined by a rotatable body having teeth disposed on an outer surface of the rotatable body, where the gear body is formed at least in part from a material including copper and X, where X is one of zirconium, titanium, hafnium, rutherfordium, and mixtures thereof and where the atomic ratio of copper to X is approximately between 2:3 and 3:2.

Described herein is a feedstock comprising BMG. The feedstock has a surface with an average roughness of at least 200 microns. Also described herein is a feedstock comprising BMG. The feedstock, when supported on a support during a melting process of the feedstock, has a contact area between the feedstock and the support up to 50% of a total area of the support. These feedstocks can be made by molding ingots of BMG into a mole with surface patterns, enclosing one or more cores into a sheath with a roughened surface, chemical etching, laser ablating, machining, grinding, sandblasting, or shot peening. The feedstocks can be used as starting materials in an injection molding process.

A method for producing a hollow article made of amorphous metal comprising the steps of: a) providing a metal composition, b) melting the composition according to step a) in order to obtain a melt, c) introducing the melt according to step b) into a cavity of a casting mold, the casting mold comprising an inner core, at least a portion of the lateral surface of the inner core being surrounded by a separation element, d) cooling the melt in the casting mold in order to obtain a molded part made of amorphous metal, e) removing the inner core and the separation element from the molded part according to step d) in order to obtain a hollow article made of amorphous metal. The present invention also relates to a hollow article made of amorphous metal, more particularly to a pipe made of amorphous metal.

There are provided metallic glass matrix composites with controllable work-hardening capacity. In more detail, there are provided metallic glass matrix composite with controllable work-hardening capacity capable of having significantly excellent toughness due to a metastable second phase precipitated in-situ in a metallic glass matrix by polymorphic phase transformation during a solidification process without a separate synthetic process, and capable of controlling work-hardening capacity by measuring physical properties of a second phase and adjusting a volume fraction (V.sub.f) of the second phase due to constant correlation between the physical properties (absorbed energy E.sup.t.sub.a, a phase transformation temperature T.sub.Ms, or a hardness H.sub.2nd) of a metastable B2 second phase precipated in the metallic glass matrix and the absorbed energy (E.sup.p.sub.a,V) by work-hardening per unit volume fraction of the second phase in the metallic glass matrix.

Radiation shielding structures comprising bulk-solidifying amorphous alloys and methods of making radiation shielding structures and components in near-to-net shaped forms are provided.

An electromagnetic wave shielding thin film for shielding from electromagnetic waves generated in an electronic part is provided. The electromagnetic wave shielding thin film includes metal plate which has elastic limit of 1% or more, strength of 1000 MPa or more, and a volume fraction of an amorphous phase of 50% or more.

The disclosure is directed to methods of forming metallic glass multilayers by depositing a liquid layer of a metallic glass forming alloy over a metallic glass layer, and to multilayered metallic glass articles produced using such methods.

Embodiments relates to a hook side fastener having hooks and a loop side fastener having loops. The hooks and/or loops are made of bulk solidifying amorphous metal alloy. Other embodiments relate to methods of making and using the hook side and loop side fasteners.

The present invention concerns an electrochemical device comprising a cathode and an anode separated from each other by a separator, the battery further comprising two current collectors so that the anode and cathode are each arranged between the separator and a current collector, characterized in that at least one of the two current collectors is made of an at least partially amorphous material comprising at least one metallic element.