The present invention relates to a method for producing a component of a -TiAl alloy, in which, in a first step, a forging blank made of a -TiAl alloy is built up from a powder material by an additive method, and subsequently, in a second step, the forging blank is reshaped into a semi-finished product, wherein the degree of reshaping over the entire forging blank is high enough that, in a third step, the structure is recrystallized during a heat treatment. In addition, the invention relates to a component produced therefrom.

The present invention relates to a method for producing a component of a -TiAl alloy, in which, in a first step, a forging blank made of a -TiAl alloy is built up from a powder material by an additive method, and subsequently, in a second step, the forging blank is reshaped into a semi-finished product, wherein the degree of reshaping over the entire forging blank is high enough that, in a third step, the structure is recrystallized during a heat treatment. In addition, the invention relates to a component produced therefrom.

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.

The present invention relates to a method for producing a component of a composite material comprising a metal matrix and incorporated intermetallic phases, which method comprises providing powders of at least one member of the group which comprises pure chemical elements, alloys, chemical compounds and material composites, the powder corresponding overall to the chemical composition which the composite material to be produced is intended to have, each individual powder being different to the chemical composition of the composite material to be produced, compacting the powders, bonding the powders to one another to form a unit and thermoplastically shaping the unit.

The present invention discloses a cold additive and hot forging combined forming method of amorphous alloy parts. The present invention belongs to the field of cold additive manufacturing technology and thermoplastic forming of amorphous alloy, and more particularly relates to a cold additive and hot forging combined forming method of amorphous alloy parts, the method comprising: (1) making amorphous alloy powder into a pre-forging blank by the micro-jetting and bonding 3D printing technology; and (2) placing the pre-forging blank in the step (1) in a closed forging die to perform hot closed-die forging so as to obtain an amorphous alloy part, wherein the contour size and shape of the pre-forging blank are designed according to the contour size and shape of the inner cavity of the closed forging die; and an exhaust hole is provided in the closed forging die such that gas generated by gasification or decomposition of the binder at a hot die forging temperature is discharged through the exhaust hole in the closed forging die. In the present invention, a bulk amorphous alloy part with a large size and a complex shape can be prepared by the cold additive and hot forging combined forming method.

The present invention discloses a cold additive and hot forging combined forming method of amorphous alloy parts. The present invention belongs to the field of cold additive manufacturing technology and thermoplastic forming of amorphous alloy, and more particularly relates to a cold additive and hot forging combined forming method of amorphous alloy parts, the method comprising: (1) making amorphous alloy powder into a pre-forging blank by the micro-jetting and bonding 3D printing technology; and (2) placing the pre-forging blank in the step (1) in a closed forging die to perform hot closed-die forging so as to obtain an amorphous alloy part, wherein the contour size and shape of the pre-forging blank are designed according to the contour size and shape of the inner cavity of the closed forging die; and an exhaust hole is provided in the closed forging die such that gas generated by gasification or decomposition of the binder at a hot die forging temperature is discharged through the exhaust hole in the closed forging die. In the present invention, a bulk amorphous alloy part with a large size and a complex shape can be prepared by the cold additive and hot forging combined forming method.

The invention relates to a temperature control system for additive manufacturing and method for same. The temperature control system comprises: a cladding device configured to fuse a material and form a cladding layer, the cladding device comprising a first energy source; a micro-forging device coupled to the cladding device for forging the cladding layer; a detecting device; a control module; and an adjusting module coupled to at least one of the first energy source and the micro-forging device.

The present invention belongs to the technical field of the preparation of alloy materials, and discloses a high strength and toughness alloy material, a method for preparing the alloy material by semi-solid sintering, and application thereof. The preparation method comprises the three steps of mixing powders, preparing alloy powders by high-energy ball milling, and semi-solid sintering of alloy powders, the key point lies in the two-step sintering, wherein the temperature is heated to less than the initial melting temperature of the lowest-temperature melting peak of the alloy powder, under the sintering pressure conditions, and carried out a sintering densification treatment; after pressure release, the temperature is heated to the sintering temperature Ts, and maintained at the same temperature, and a semi-solid processing is carried out, with a sintering temperature Ts: Tsthe initial melting temperature of the lowest-temperature melting peak of the alloy powder, Tsthe initial melting temperature of the highest-temperature melting peak of the alloy powder. By using the present method, a variety of high melting point alloy systems comprising such as Ti-based, Ni-based alloy system, and the like are carried out a semi-solid processing, so as to obtain an alloy material with a novel microstructure such as nanocrystalline, ultra-fine crystalline, fine crystalline or bimodal structure, and the like, and having excellent performances, which can be widely used in the fields of aerospace, military, instruments and the like.