A method for manufacturing an alloy ribbon piece capable of manufacturing a nanocrystalline alloy ribbon piece is provided. The method for manufacturing an alloy ribbon piece according to the present disclosure is a method for manufacturing an alloy ribbon piece obtained by crystallizing an amorphous alloy ribbon piece, and includes: preparing the amorphous alloy ribbon piece; sequentially heating the amorphous alloy ribbon piece from one end to an intermediate position toward another end to a temperature range equal to or more than a crystallization starting temperature, and stopping the heating when heating the amorphous alloy ribbon piece up to the intermediate position to the temperature range; and heating a region on the other end side with respect to the intermediate position of the amorphous alloy ribbon piece to the temperature range equal after the stopping of the heating in the sequentially heating.

Provided is an aluminum alloy material for die-casting that allows being manufactured at low-price and has a high strength property and a sufficient elongation property as an aluminum alloy, and a method for manufacturing the same. An aluminum alloy material for die-casting contains Si: 9.6 mass% to 12 mass%, Cu: 1.5 mass% to 3.5 mass%, Mg: more than 0.3 mass% to 1.6 mass%, Zn: 0.01 mass% to 3.5 mass%, Mn: 0.01 mass% to 0.7 mass%, Fe: 0.01 mass% to 1.3 mass%, and Al and inevitable impurities: balance when the aluminum alloy material for die-casting as a whole is 100 mass%, and a mass ratio of Fe to Mn (Fe/Mn) is 4.4 or less.

Provided is an aluminum alloy material for die-casting that allows being manufactured at low-price and has a high strength property and a sufficient elongation property as an aluminum alloy, and a method for manufacturing the same. An aluminum alloy material for die-casting contains Si: 9.6 mass% to 12 mass%, Cu: 1.5 mass% to 3.5 mass%, Mg: more than 0.3 mass% to 1.6 mass%, Zn: 0.01 mass% to 3.5 mass%, Mn: 0.01 mass% to 0.7 mass%, Fe: 0.01 mass% to 1.3 mass%, and Al and inevitable impurities: balance when the aluminum alloy material for die-casting as a whole is 100 mass%, and a mass ratio of Fe to Mn (Fe/Mn) is 4.4 or less.

Identifying a stable phase of a binary alloy comprising a solute element and a solvent element. In one example, at least two thermodynamic parameters associated with grain growth and phase separation of the binary alloy are determined, and the stable phase of the binary alloy is identified based on the first thermodynamic parameter and the second thermodynamic parameter, wherein the stable phase is one of a stable nanocrystalline phase, a metastable nanocrystalline phase, and a non-nanocrystalline phase. In different aspects, an enthalpy of mixing of the binary alloy may be calculated as a first thermodynamic parameter, and an enthalpy of segregation of the binary alloy may be calculated as a second thermodynamic parameter. In another example, a diagram delineating a plurality of regions respectively representing different stable phases of at least one binary alloy is employed, wherein respective regions of the plurality of regions are delineated by at least one boundary determined as a function of at least two thermodynamic parameters associated with grain growth and phase separation of the at least one binary alloy.

Identifying a stable phase of a binary alloy comprising a solute element and a solvent element. In one example, at least two thermodynamic parameters associated with grain growth and phase separation of the binary alloy are determined, and the stable phase of the binary alloy is identified based on the first thermodynamic parameter and the second thermodynamic parameter, wherein the stable phase is one of a stable nanocrystalline phase, a metastable nanocrystalline phase, and a non-nanocrystalline phase. In different aspects, an enthalpy of mixing of the binary alloy may be calculated as a first thermodynamic parameter, and an enthalpy of segregation of the binary alloy may be calculated as a second thermodynamic parameter. In another example, a diagram delineating a plurality of regions respectively representing different stable phases of at least one binary alloy is employed, wherein respective regions of the plurality of regions are delineated by at least one boundary determined as a function of at least two thermodynamic parameters associated with grain growth and phase separation of the at least one binary alloy.

A bioabsorbable implant including an elongated metallic element having more than 50% by weight a metal and being substantially free of rare earth elements, the elongated metallic element defining at least a portion of the bioabsorbable implant and including a wire formed into a discrete bioabsorbable expandable metal ring; at least two biostable ring elements, each biostable ring element having a biostable and radio-opaque metallic alloy, the bioabsorbable expandable metal ring being disposed adjacent to at least one of the biostable ring elements; at least one flexible longitudinal connector including a bioabsorbable polymer, the connector being disposed between at least two adjacent rings; and a coating having at least one pharmaceutically active agent disposed over at least a portion of one ring.

A bioabsorbable implant including an elongated metallic element having more than 50% by weight a metal and being substantially free of rare earth elements, the elongated metallic element defining at least a portion of the bioabsorbable implant and including a wire formed into a discrete bioabsorbable expandable metal ring; at least two biostable ring elements, each biostable ring element having a biostable and radio-opaque metallic alloy, the bioabsorbable expandable metal ring being disposed adjacent to at least one of the biostable ring elements; at least one flexible longitudinal connector including a bioabsorbable polymer, the connector being disposed between at least two adjacent rings; and a coating having at least one pharmaceutically active agent disposed over at least a portion of one ring.

A metallic glass part is provided. The metallic glass part includes an alloy core and a metallic glass shell surrounding the alloy core. The alloy core provides compressive force on the metallic glass shell at an interface between the alloy core and the metallic glass shell.

A metallic glass part is provided. The metallic glass part includes an alloy core and a metallic glass shell surrounding the alloy core. The alloy core provides compressive force on the metallic glass shell at an interface between the alloy core and the metallic glass shell.

A process for manufacturing ceramic-metal composite material, comprises dissolving ceramic powder into water to obtain an aqueous solution of ceramic; mixing metal powder having a multimodal particle size where largest particle size is one fourth of the minimum dimension of a device, with the aqueous solution of ceramic to obtain a powder containing ceramic precipitated on the surface of metal particles; mixing the powder containing ceramic precipitated on the surface of the metal particles, with ceramic powder having a particle size below 50 μm, to obtain a powder mixture; adding saturated aqueous solution of ceramic to the powder mixture to obtain an aqueous composition containing ceramic and metal; compressing the aqueous composition to form a disc of ceramic-metal composite material containing ceramic and metal; and removing water from the ceramic-metal composite material; wherein ceramic content of the disc is 10 vol-% to 35 vol-%. Alternatively, ceramic-ceramic composite material may be manufactured.