A method for manufacturing a three-dimensional semi-finished product comprises the steps of applying a first raw material powder to a carrier, applying a second raw material powder to the carrier, selectively irradiating the first raw material powder applied to the carrier with electromagnetic radiation or particle radiation, in order to manufacture a workpiece produced from the first raw material powder on the carrier by a generative layer construction method, and selectively irradiating the second raw material powder applied to the carrier with electromagnetic radiation or particle radiation, in order to manufacture a support element produced from the second raw material powder on the carrier by a generative layer construction method, wherein the support element produced from the second raw material powder has a higher thermal conductivity than the workpiece produced from the first raw material powder and wherein the support element dissipates heat introduced during the irradiation of the first and the second raw material powder.

Various embodiments of the present disclosure provide an additive manufacturing method. The method includes forming a first layer of a first ceramic material and forming a second layer of a second ceramic material. The method further includes contacting the first layer of the first ceramic material, the second layer of the second ceramic material, or both with a saturant. The method further includes heating the first layer of the first ceramic material, the second layer of the second ceramic material, or both to a temperature in a range of from about 50? C. to about 300? C. The method further includes applying pressure to the first layer of the first ceramic material, the second layer of the second ceramic material, or both. The pressure can be in a range of from about 10 kPa to about 800 MPa. The method further includes at least partially dissolving a portion of an external surface of a ceramic particle of the first layer of the first ceramic material, the second layer of the second ceramic material, or both. The method further includes fusing a portion of the dissolved portion of the external surface of the ceramic particle to from a product having a density in a range of from about 65% to about 100% relative to a corresponding fully densified product and optionally containing no organic binder.

Methods for producing aluminum metal matrix composite feedstocks are disclosed. A method in accordance with an aspect of the present disclosure may comprise heating a metal into a liquid, spraying the liquid through a nozzle to produce droplets, directing a stream of ceramic particles to contact the droplets to form a compound material, the compound material comprising the droplets and the ceramic particles, and obtaining a powder from the droplets.

The invention relates to a method for producing a steel shaped body, particularly, for example, a component for common rail fuel injection valves, comprising the method steps of: forming a powderous composition based on iron oxide, from oxide particles, with the addition of carbon and micro-alloy elements so as to adjust a bainitic microstructure; heating the powderous composition to a sinter temperature; reducing the shaped body obtained by sintering; and cooling the sintered shaped body to room temperature. As a result, from the three essential state phases in a state diagram (10), specifically the ferrite-perlite state range (11), the bainite state range (12) and the martensite state range (13), preferably the bainitic state phase is formed in a medium temperature range by the ferrite-perlite state range (11) being shifted to longer cooling periods and the martensite state range (13) being shifted to lower temperatures.

Provided is a powder for shaping through irradiation with an energy beam, the powder including: a sublimable substance; and a sublimation suppression material, wherein the sublimation suppression material is an inorganic compound, and wherein particles of the sublimation suppression material adhere to part of surfaces of particles of the sublimable substance.

A method includes providing a metallic first powder having a plurality of first particles with a first mean particle diameter. A second powder added to the first powder has a plurality of second particles with a second mean particle diameter less than the first mean particle diameter. Energy is applied to at least the second powder so as to selectively heat the second particles. The first powder is combined with the heated second powder to form a modified powder including modified powder particles. Modified powder particles have an interior portion containing an interior composition, and an outer surface portion with an outer composition different from the interior composition.

A bimodal metal nanocomposite of ceramic nanoparticles in a metal or metal alloy matrix has a microstructure showing a first hard phase containing the ceramic nanoparticles in the metal or metal alloy matrix, and a second soft phase comprising only the metal or metal alloy with few or no ceramic nanoparticles. The stiffness and yield strength of the bimodal metal nanocomposite is significantly increased compared to the metal or metal alloy alone, while the ductility of the metal or metal alloy is retained. A process for making the bimodal metal matrix nanocomposite includes milling a powder mixture of micrometer-size metal flakes and ceramic nanoparticles for a time sufficient to embed the ceramic nanoparticles into the metal flakes.

A three-dimensional shaped article production method according to the invention is a method for producing a three-dimensional shaped article by stacking layers formed in a predetermined pattern, wherein a series of steps including a composition supply step of supplying a composition containing a plurality of particles to a predetermined part, and a bonding step of bonding the particles by irradiation with a laser light is performed repeatedly, and the composition supply step includes a step of forming a first region using a first composition containing first particles as the composition, and a step of forming a second region using a second composition containing second particles which are different from the first particles as the composition, and the bonding of the particles in the first region and the bonding of the particles in the second region are performed by irradiation with laser lights with a different spectrum.

A powder metal composition for a powder metal material to be compacted, sintered, and heat treated is comparable to wrought 6063 aluminum alloy. The powder metal composition consists essentially of an aluminum powder metal with no pre-alloyed alloying additions, an aluminum-silicon powder metal, an elemental magnesium powder metal, optionally an elemental tin powder metal, and optionally a ceramic addition (which is not included when calculating the weight percentages of the alloying elements). A weight percent of silicon is in a range of 0.2 to 0.6 wt % of the powder metal composition, of magnesium is in a range of 0.5 to 0.9 wt %, and of tin is in a range of 0.0 to 1.0 wt %. This powder metal is compactable to form a green compact which is further sinterable and heat treatable to provide a powder metal composition comparable to a wrought 6063 aluminum alloy and which offers exceptional thermal conductivity.

A flowable blend of materials can include a first particulate material that includes an aluminum alloy where the aluminum alloy is at least approximately eighty percent by weight of the first particulate material and one or more metals selected from a group consisting of alkali metals, alkaline earth metals, group 12 transition metals, and basic metals having an atomic number equal to or greater than 31, where the one or more metals selected from the group total at least approximately two percent by weight of the first particulate material; and a second particulate material where the composition of the first particulate material differs from the composition of the second particulate material.