According to one embodiment, a tungsten wire includes a tungsten alloy containing rhenium. The tungsten wire includes a protrusion peak density (Spd) of 7000 or more and 11000 or less as a surface roughness parameter.

A TiFe-based sintered alloy material including two phases of an phase and a phase, in which a content of iron is 0.5% or more and 7% or less on a weight basis, a phase containing an iron component is dispersed in an independent state in an phase, an area ratio of the phase containing an iron component is 60% or less of an entire area, and an equiaxed crystal grain is contained in the phase.

A TiFe-based sintered alloy material including two phases of an phase and a phase, in which a content of iron is 0.5% or more and 7% or less on a weight basis, a phase containing an iron component is dispersed in an independent state in an phase, an area ratio of the phase containing an iron component is 60% or less of an entire area, and an equiaxed crystal grain is contained in the phase.

A syntactic metal foam composite that is substantially fully dense except for syntactic porosity is formed from a mixture of ceramic microballoons and matrix forming metal. The ceramic microballoons have a uniaxial crush strength and a much higher omniaxial crush strength. The mixture is continuously constrained while it is consolidated. The constraining force is less than the omniaxial crush strength. The substantially fully dense syntactic metal foam composite is then constrained and deformation worked at a substantially constant volume. The deformation working is typically performed at a yield strength that is adjusted by way of selecting a working temperature at which the yield strength is approximately less than the omniaxial crush strength of the included ceramic microballoons. This deformation causes at least work hardening and grain refinement in the matrix metal.

A syntactic metal foam composite that is substantially fully dense except for syntactic porosity is formed from a mixture of ceramic microballoons and matrix forming metal. The ceramic microballoons have a uniaxial crush strength and a much higher omniaxial crush strength. The mixture is continuously constrained while it is consolidated. The constraining force is less than the omniaxial crush strength. The substantially fully dense syntactic metal foam composite is then constrained and deformation worked at a substantially constant volume. The deformation working is typically performed at a yield strength that is adjusted by way of selecting a working temperature at which the yield strength is approximately less than the omniaxial crush strength of the included ceramic microballoons. This deformation causes at least work hardening and grain refinement in the matrix metal.

A green compact conveying mechanism includes: a conveyance path for a green compact obtained by compressively forming powder in a sheet shape; an extrusion part that sends the green compact to the downstream side of the conveyance path by extruding the green compact; and a buckling inducing part that is arranged in the conveyance path, causes the green compact to be easily bent locally, and induces buckling at that site.

A method for manufacturing a magnesium-based thermoelectric conversion material of the present invention includes a raw material-forming step of forming a raw material for sintering by adding silicon oxide in an amount within a range equal to or greater than 0.5 mol % and equal to or smaller than 13.0 mol % to a magnesium-based compound, and a sintering step of heating the raw material for sintering at a temperature within a range equal to or higher than 750 C. and equal to or lower than 950 C. while applying pressure equal to or higher than 10 MPa to the raw material for sintering so as to form a sintered substance.

In some embodiments, an exemplary method directed toward non-destructive methods of inspecting additively manufactured parts includes: additively manufacturing a metal part, the metal part configured with an additive manufacturing grain structure indicative of the type of additive process utilized to construct the metal part, wherein the grain structure is configured with a first ultrasonic signal attenuation level when assessed via ultrasonic inspection; imparting an amount of strain on the metal part to transform the additive manufacturing grain structure having a first ultrasonic signal attenuation level to a grain structure having second ultrasonic signal attenuation level, wherein the second ultrasonic signal attenuation level is lower than the first ultrasonic signal attenuation level; and inspecting the metal part via a non-destructive testing evaluation method to confirm whether the metal part passes a part build specification.

In some embodiments, an exemplary method directed toward non-destructive methods of inspecting additively manufactured parts includes: additively manufacturing a metal part, the metal part configured with an additive manufacturing grain structure indicative of the type of additive process utilized to construct the metal part, wherein the grain structure is configured with a first ultrasonic signal attenuation level when assessed via ultrasonic inspection; imparting an amount of strain on the metal part to transform the additive manufacturing grain structure having a first ultrasonic signal attenuation level to a grain structure having second ultrasonic signal attenuation level, wherein the second ultrasonic signal attenuation level is lower than the first ultrasonic signal attenuation level; and inspecting the metal part via a non-destructive testing evaluation method to confirm whether the metal part passes a part build specification.

A sputtering target containing molybdenum and at least one metal from the group tantalum and niobium. The average content of tantalum and/or niobium is from 5 to 15 at % and the molybdenum content is greater than or equal to 80 at %. The sputtering target has at least a matrix with an average molybdenum content of greater than or equal to 92 at % and particles which are composed of a solid solution containing at least one metal from the group of tantalum and niobium, and molybdenum, with an average molybdenum content of greater than or equal to 15 at % and are embedded in the matrix. There is also described a method of producing a sputtering target.