An oxygen solid solution titanium sintered compact includes a matrix made of a titanium component having an α-phase, oxygen atoms dissolved as a solute of solid solution in a crystal lattice of the titanium component, and metal atoms dissolved as a solute of solid solution in the crystal lattice of the titanium component.

A field of additive manufacturing and more particularly to a method of additive manufacturing through the addition of a metallic material, the melting of runs of the metallic material through the application of energy, and solidification of the runs. In this method, the intensity, per unit length of run, of the energy supplied for melting one or more initial runs of the metallic material applied to a first part of a component is appreciably lower than that of the energy supplied for melting one or more subsequent runs of the metallic material added to the initial runs.

In an example of a 3D printing method, build material particles are applied to form a layer. Each build material particle includes a metal core and a metal oxide outer shell. The layer is patterned by selectively applying a reactive chemical on at least a portion of the layer to initiate a redox reaction with the metal oxide outer shells of the build material particles in contact with the reactive chemical, which reduces the metal oxide outer shells of the build material particles in contact with the reactive chemical and exposes the metal cores of the build material particles in contact with the reactive chemical. The patterned layer is exposed to rapid thermal processing to sinter the exposed metal cores to form a part layer. Any intact build material particles remain unsintered.

To provide Ti—Cu alloy formulations and additive manufacturing process configurations for fabrication of a bulk metallic glass (BMG) product that is biocompatible and antimicrobial, compositions of Ti-based metal alloy powder, comprising: Ti; Cu within a range of 5-30 atomic percent; transition metal within a range of 0-50 atomic percent, wherein such transition metal is one or a plurality of Zr, Nb, Ta, Pd, and Co, are disclosed. Moreover, additive manufacturing processes disclosed herein are capable of fabricating a bulk metallic glass of one or a combination of following phasic structures: fully amorphous microstructure; amorphous beta titanium phase; amorphous copper phase; and amorphous (Ti,M).sub.2Cu phase. The resulting biocompatible metal alloy product may be a medical device, particularly but not limited to a medical implant.

Disclosed herein are embodiments of methods, devices, and assemblies for processing feedstock materials using microwave plasma processing. Specifically, the feedstock materials disclosed herein pertains to scrap materials, dehydrogenated or non-hydrogenated feed material, and recycled used powder. Microwave plasma processing can be used to spheroidize and remove contaminants. Advantageously, microwave plasma processed feedstock can be used in various applications such as additive manufacturing or powdered metallurgy (PM) applications that require high powder flowability.

A method for additive manufacturing three-dimensional objects from metals and their alloys in the process of melting subsequent layers of the alloying material in the form of a powder with a laser beam or an electron beam with the manufacturing of the object itself and support structures which are subsequently removed from the object itself through chemical etching of the material, characterized in that the support structures have a permeability higher than 10.sup.-12 m.sup.2, measured in the direction parallel to the plane defined by the layer of the deposited powder, with the thickness of the support structure wall is no larger than 1 mm, and the etching liquid contains at least one component which on its own causes a passive layer to form on the surface of the processed material and the etching liquid is subject to ultrasounds with an intensity larger than the cavitation threshold in the medium.

The present invention discloses a method for manufacturing a thin-walled metal component by three-dimensional (3D) printing and hot gas bulging. The present invention uses 3D printing to obtain a complex thin-walled preform, which reduces a deformation during subsequent hot gas bulging. The present invention avoids local bulging thinning and cracking, undercuts at the parting during die closing, and wrinkles due to the uneven distribution of cross-sectional materials, etc. The present invention obtains a high accuracy in the form and dimension through hot gas bulging. After a desired shape is obtained by hot gas bulging, a die is closed to keep the component under high temperature and high pressure for a period of time, so that a grain and a phase of the material are transformed to form a desired microstructure.

The invention relates to a device (1) for manufacturing a part (100) made of metallic material, comprising a depositing member (2) made of said metallic material. The device (1) further comprises an impacting member (4) of the material being deposited by emitting an energy beam (5), so as to locally modify its crystalline structure.

The invention relates to powder metallurgy, in particular to a method for metallothermal reduction of feedstock elements made from feedstock being a solid solution of oxides of various elements in titanium oxide, using magnesium and/or calcium as reducing agents. Processes include hydrolysis of an aqueous solution of a titanium-containing salt to obtain primary particles of crystalline titanium oxide, calcination of a precipitate of titanium oxides/hydroxides, formation of feedstock elements from a milled powder of a solid solution of dopants in titanium oxide, reduction of feedstock elements in one step using calcium metal or reduction of feedstock elements in two steps, using magnesium metal or calcium metal in the first step, and calcium metal in the second step. The aim of the invention is to produce alloy powders of titanium metal with a particularly low oxygen content.

A dissimilar material joining product according to at least one embodiment of the disclosure includes a base material, a cladding layer formed of a dissimilar material having a different main component element from that of the base material and formed to cover at least a part of the base material, and an additively manufactured layer formed of a dissimilar material having a different main component element from that of the base material and joined to the base material with the cladding layer interposed therebetween.