A Fe-based nanocrystalline alloy powder having an alloy composition represented by the following Composition Formula (1) and having an alloy structure including nanocrystal particles:
Fe.sub.100-a-b-c-d-e-f-gCu.sub.aSi.sub.bB.sub.cMo.sub.dCr.sub.eC.sub.fNb.sub.g   Composition Formula (1), in which 100-a-b-c-d-e-f-g, a, b, c, d, e, f, and g each represent a percent (%) by atom of a relevant element, and a, b, c, d, e, f, and g satisfy 0.10≤a≤1.10, 13.00≤b≤16.00, 7.00≤c≤12.00, 0.50≤d≤5.00, 0.001≤e≤1.50, 0.05≤f≤0.40, and 0≤(g/(d+g))≤0.50, in Composition Formula (1).

Flaky magnetic metal particles of embodiments each have a flat surface and a magnetic metal phase containing iron (Fe), cobalt (Co), and silicon (Si). An amount of Co is from 0.001 at% to 80 at% with respect to the total amount of Fe and Co. An amount of Si is from 0.001 at% to 30 at% with respect to the total amount of the magnetic metal phase. The flaky magnetic metal particles have an average thickness of from 10 nm to 100 .Math.m. An average value of the ratio of the average length in the flat surface with respect to a thickness in each of the flaky magnetic metal particles is from 5 to 10,000. The flaky magnetic metal particles have the difference in coercivity on the basis of direction within the flat surface.

Flaky magnetic metal particles of embodiments each have a flat surface and a magnetic metal phase containing iron (Fe), cobalt (Co), and silicon (Si). An amount of Co is from 0.001 at% to 80 at% with respect to the total amount of Fe and Co. An amount of Si is from 0.001 at% to 30 at% with respect to the total amount of the magnetic metal phase. The flaky magnetic metal particles have an average thickness of from 10 nm to 100 .Math.m. An average value of the ratio of the average length in the flat surface with respect to a thickness in each of the flaky magnetic metal particles is from 5 to 10,000. The flaky magnetic metal particles have the difference in coercivity on the basis of direction within the flat surface.

A powder metal material for additive manufacturing contains: (A) a non-magnetic steel powder which is free of nitrogen; and (B) at least one powder selected from a chromium nitride powder and a ferrochromium nitride powder, a particle size of the component (B) is 10.0 μm≤D50≤25.0 μm in terms of volume average particle size, and a content of the component (B) is 0.1 mass % to 3.5 mass % with respect to a total amount of the powder metal material.

A method for manufacturing magnetic alloy powder constituted by magnetic grains whose alloy phase is coated with an oxide film, includes: providing a material powder for magnetic alloy whose Fe content is 96.5 to 99 percent by mass and which also contains Si and at least one of non-Si elements (element M) that oxidize more easily than Fe; and heat-treating the material powder and thus forming an oxide film on a surface of each grain constituting the material powder, to obtain a magnetic alloy powder, wherein a content of Fe in the alloy phase is higher than in the material powder; and at a location in the oxide film where its content of Si is in element distributions in a film thickness direction is highest, the content of Si is higher than a content of Fe, and also higher than its content of element M, at the location.

Disclosed herein are embodiments of a powder feedstock, such as for bulk welding, which can produce welds. The powder feedstock can include high levels of boron, and may be improved over previously used cored wires. Coatings can be formed from the powder feedstock which may have high hardness in certain embodiments, and low mass loss under ASTM standards.

The present disclosure provides a blended powder comprising a first ferroalloy powder and at least one iron powder or second ferroalloy powder. The present disclosure also provides a method for dry metal alloying, comprising combining powder comprising a first ferroalloy powder and at least one iron powder or second ferroalloy powder, and mixing the combined powders to form a blended powder.

The present invention provides a friction material and a brake pad having excellent wear resistance while exhibiting a high friction coefficient under high-temperature and high-speed conditions. A friction material containing: 40 mass % or more and 80 mass % or less of a matrix containing at least one kind selected from the group consisting of Ni and Fe; 10 mass % or more and 30 mass % or less of inorganic particles containing zircon particles, titania particles, and mullite particles; and 10 mass % or more and 30 mass % or less of a lubricant containing at least one kind selected from the group consisting of graphite, molybdenum disulfide, boron nitride and calcium fluoride, wherein a content of the zircon particles is 30 vol % or more and 36 vol % or less, a content of the titania particles is 30 vol % or more and 36 vol % or less, and a content of the mullite particles is 30 vol % or more and 36 vol % or less with respect to a total content of 100 vol % of the zircon particles, the titania particles, and the mullite particles.

According to an aspect of the present invention, a method for producing an oxide-dispersed strengthened alloy using organic-inorganic kneaded composition is provided. The method, comprises: a feedstock preparing step of preparing the organic-inorganic kneaded composition prepared by kneading, pulverizing and granulating ODS mixed powders and a polymer binder; a molding step of forming a semi-finished product having a predetermined shape using the organic-inorganic kneaded composition; a debinding step of removing the polymeric binder from the semi-finished product molded in the molding step; and a sintering step of extracting a final product having a predetermined shape by sintering and cooling the semi-finished product in which the polymeric binder has been removed in the debinding step.

Provided is a magnetic calorific composite material including a magnetic calorific material and an alloy-coated carbon material including an alloy coat having a melting point of 150° C. or lower, in which a content of the alloy-coated carbon material is 7.5 wt % to 22.5 wt %.