A method and an apparatus (10) for generating a three-dimensional work piece containing an information code are provided. The method comprises the steps of applying a raw material powder (18) onto a carrier (14) by means of a powder application device (16), irradiating electromagnetic or particle radiation (22) onto the raw material powder (18) applied onto the carrier (14) by means of an irradiation device (20), and controlling the operation of the powder application device (16) and the irradiation device (20) so as to generate an information code pattern (36) on or in the work piece (12), wherein the information code pattern (36) is defined by the microstructure (34) of the work piece (12).

A method of hardfacing a metal component includes welding a surface area of the metal component using a Cold Metal Transfer (CMT) process. The method of hardfacing the metal component includes performing the CMT welding process in a weaving pattern over the surface area of the component. A consumable, low carbon steel wire electrode is used in the CMT process.

A dust core contains a powder of a crystalline magnetic material powder and a powder of an amorphous magnetic material. The sum of the content of the crystalline magnetic material powder and the content of the amorphous magnetic material powder is 83 mass percent or more. The mass ratio of the content of the crystalline magnetic material powder to the sum of the content of the crystalline magnetic material powder and the content of the amorphous magnetic material powder is 20 mass percent or less. The median diameter D50a of the amorphous magnetic material powder is greater than or equal to the median diameter D50c of the crystalline magnetic material powder. A 10% cumulative diameter D10a in a volume-based cumulative particle size distribution of the amorphous magnetic material powder is 9.5 ?m or less.

A dust core contains a powder of a crystalline magnetic material powder and a powder of an amorphous magnetic material. The sum of the content of the crystalline magnetic material powder and the content of the amorphous magnetic material powder is 83 mass percent or more. The mass ratio of the content of the crystalline magnetic material powder to the sum of the content of the crystalline magnetic material powder and the content of the amorphous magnetic material powder is 20 mass percent or less. The median diameter D50a of the amorphous magnetic material powder is greater than or equal to the median diameter D50c of the crystalline magnetic material powder. A 10% cumulative diameter D10a in a volume-based cumulative particle size distribution of the amorphous magnetic material powder is 9.5 ?m or less.

A process for manufacturing which comprises the following steps: a) supplying an aluminium alloy particle powder, b) applying a layer of powder to a solid substrate or to an underlying powder layer, c) locally melting the applied powder layer by laser beam scanning, to form a molten bath comprising a first surface in contact with the substrate or the underlying powder layer, d) cooling the molten bath at a cooling rate Vr to solidify it, where zirconium has been added before step c), the zirconium representing at least 0.7% by mass, relative to the total mass of the aluminium alloy, and the cooling rate Vr at the start of solidification at the first surface of the molten bath being: less than Vrmax=w*9.106-4.106 where w is the percentage by mass of zirconium, andstrictly greater than Vrmin=106 K/s.

A process for manufacturing which comprises the following steps: a) supplying an aluminium alloy particle powder, b) applying a layer of powder to a solid substrate or to an underlying powder layer, c) locally melting the applied powder layer by laser beam scanning, to form a molten bath comprising a first surface in contact with the substrate or the underlying powder layer, d) cooling the molten bath at a cooling rate Vr to solidify it, where zirconium has been added before step c), the zirconium representing at least 0.7% by mass, relative to the total mass of the aluminium alloy, and the cooling rate Vr at the start of solidification at the first surface of the molten bath being: less than Vrmax=w*9.106-4.106 where w is the percentage by mass of zirconium, andstrictly greater than Vrmin=106 K/s.

The present disclosure provides a rare earth sintered magnet satisfying the general formula (Nd, La, Sm)FeB-M, where the element M is one or more elements selected from the group consisting of Cu, Al, and Ga, the rare earth sintered magnet including: a main phase including crystal grains based on an R.sub.2Fe.sub.14B crystal structure; a first subphase that is crystalline and mainly composed of an oxide phase represented by (Nd, La, Sm)O; and a second subphase that is crystalline and mainly composed of an oxide phase represented by (Nd, La)O. The concentration of Sm is higher in the first subphase than in the second subphase, and the concentration of the element M is higher in the second subphase than in the first subphase.

According to aspects of the present disclosure, a ternary alloy includes a dual-phase microstructure including a first phase and a second phase. The first phase defines a hexagonal close-packed structure with a stoichiometric ratio of Al.sub.4Fe.sub.1.7Si. The second phase defines a face-centered cubic structure with a stoichiometric ratio of Al.sub.3Fe.sub.2Si. The dual-phase microstructure is stable above about 800 C., and the dual-phase microstructure has a first-phase abundance greater than about 50 parts by weight and a second-phase abundance less than about 50 parts by weight based on 100 parts by weight of the ternary alloy.

The cemented carbide of the present disclosure is a cemented carbide comprising a first phase composed of a tungsten carbide particle and a second phase comprising cobalt as a main component, wherein a total content of the first phase and the second phase in the cemented carbide is 97% by volume or more, an average value of an equivalent circle diameter of the tungsten carbide particle is 0.8 m or less, a cobalt content of the cemented carbide is 3% by mass or more and 10% by mass or less, a vanadium content of the cemented carbide is 0.01% by mass or more and 0.30% by mass or less, and a maximum value of the vanadium content in an interface region between a (0001) crystal plane of the tungsten carbide particle and the second phase is 15 atomic % or less.

A method for producing a reinforced alloy powder containing a metal matrix in which crystalline oxide particles are dispersed, including: (i) providing a powder mixture including a parent metal powder including a master alloy for forming the metal matrix and an additional powder including an intermediate; (ii) milling the powder mixture by a mechanical synthesis process to make a precursor powder; and (iii) subjecting the precursor powder to a thermal plasma generated by a plasma torch including a plasma gas. The master alloy is iron-based, nickel-based, or aluminum-based. The intermediate is at least one of YFe.sub.3, Y.sub.2O.sub.3, Fe.sub.2O.sub.3, Fe.sub.2Ti, FeCrWTi, TiH.sub.2, TiO.sub.2, Al.sub.2O.sub.3, HfO.sub.2, SiO.sub.2, ZrO.sub.2, ThO.sub.2, and MgO. In (iii), the precursor powder is injected into the plasma torch at a flow rate of 10-30 g/min, a power of the plasma torch is 20-40 kW, and a pressure in a reaction chamber of the plasma torch is 25-100 kPa.