An embodiment relates to an ultrasonic additive manufacturing process, comprising joining a foil comprising a bulk metallic glass to a substrate; and forming a cladded composite comprising the foil and the substrate; wherein a thickness of the cladded composite is greater than a critical casting thickness of the bulk metallic glass, wherein the cladded composite comprises a cladding layer of the bulk metallic glass on the substrate and the bulk metallic glass comprises approximately 0% crystallinity, approximately 0% porosity, less than 50 MPa thermal stress, approximately 0% distortion, approximately 0 inch heat affected zone, approximately 0% dilution, and a strength of about 2,000-3,500 MPa.

An embodiment relates to an ultrasonic additive manufacturing process, comprising joining a foil comprising a bulk metallic glass to a substrate; and forming a cladded composite comprising the foil and the substrate; wherein a thickness of the cladded composite is greater than a critical casting thickness of the bulk metallic glass, wherein the cladded composite comprises a cladding layer of the bulk metallic glass on the substrate and the bulk metallic glass comprises approximately 0% crystallinity, approximately 0% porosity, less than 50 MPa thermal stress, approximately 0% distortion, approximately 0 inch heat affected zone, approximately 0% dilution, and a strength of about 2,000-3,500 MPa.

Munitions structures comprising one or more high strength reactive alloys, in particular reactive bulk metallic glasses, have significant amounts of inherent chemical energy. This energy may be discharged by subjection of the munitions structure to rapid impulsive loading and fragmentation in the presence of oxygen and/or nitrogen. A munitions structure can be configured in both large and small penetrators, e.g. warheads and bullets, with increased lethality. The lethality of these munitions structures is augmented by means of rapidly and simultaneously imparting both mechanical energy (kinetic energy through impact and fragmentation) and chemical energy (blast and/or fireball) to a target. A high-strength reactive alloy can substitute at least in part one or both of explosives and inert structural materials in conventional munitions systems to improve performance and reduce parasitic weight of structural casing.

In order to improve a usage of machine tool components, it is provided that the machine tool component is formed at least partially, in particular essentially, or alternatively completely from an amorphous metal. It is provided that the tool component is produced using injection molding or 3D printing or plastic deformation.

A metallic glass having a general formula of Zr.sub.15-65Cu.sub.0-25Ni.sub.0-20Al.sub.0-30Hf.sub.0-30Ti.sub.0-30Co.sub.0-30.

A metallic glass having a general formula of Zr.sub.15-65Cu.sub.0-25Ni.sub.0-20Al.sub.0-30Hf.sub.0-30Ti.sub.0-30Co.sub.0-30.

An embodiment relates to an ultrasonic additive manufacturing process, comprising joining a foil comprising a bulk metallic glass to a substrate; and forming a cladded composite comprising the foil and the substrate; wherein a thickness of the cladded composite is greater than a critical casting thickness of the bulk metallic glass, wherein the cladded composite comprises a cladding layer of the bulk metallic glass on the substrate and the bulk metallic glass comprises approximately 0% crystallinity, approximately 0% porosity, less than 50 MPa thermal stress, approximately 0% distortion, approximately 0 inch heat affected zone, approximately 0% dilution, and a strength of about 2,000-3,500 MPa.

An embodiment relates to an ultrasonic additive manufacturing process, comprising joining a foil comprising a bulk metallic glass to a substrate; and forming a cladded composite comprising the foil and the substrate; wherein a thickness of the cladded composite is greater than a critical casting thickness of the bulk metallic glass, wherein the cladded composite comprises a cladding layer of the bulk metallic glass on the substrate and the bulk metallic glass comprises approximately 0% crystallinity, approximately 0% porosity, less than 50 MPa thermal stress, approximately 0% distortion, approximately 0 inch heat affected zone, approximately 0% dilution, and a strength of about 2,000-3,500 MPa.

A Zr-based amorphous alloy and a manufacturing method thereof, wherein the Zr-based amorphous alloy includes a composition of (Zr.sub.aHf.sub.bCu.sub.cNi.sub.dAl.sub.e).sub.100-XO.sub.x, wherein a, b, c, d, e, x are atomic percentages, and 49≤a≤55, 0.05≤b≤1, 31≤c≤38, 3≤d≤5, 7≤e≤10.5, and 0.05≤x≤0.5, wherein based on the volume of the alloy, the Zr-based amorphous alloy is cast into a rod-shaped sample having a diameter of 12-16 mm and a length of 60 mm, an amorphous content of 40%-95%, a strength of above 1800 MPa, and a fracture toughness of higher than 90 KPam.sup.1/2.

A Zr-based amorphous alloy and a manufacturing method thereof, wherein the Zr-based amorphous alloy includes a composition of (Zr.sub.aHf.sub.bCu.sub.cNi.sub.dAl.sub.e).sub.100-XO.sub.x, wherein a, b, c, d, e, x are atomic percentages, and 49≤a≤55, 0.05≤b≤1, 31≤c≤38, 3≤d≤5, 7≤e≤10.5, and 0.05≤x≤0.5, wherein based on the volume of the alloy, the Zr-based amorphous alloy is cast into a rod-shaped sample having a diameter of 12-16 mm and a length of 60 mm, an amorphous content of 40%-95%, a strength of above 1800 MPa, and a fracture toughness of higher than 90 KPam.sup.1/2.