A rotating electric machine according to embodiments is a rotating electric machine including a rotor including a first core and being capable of rotating around a rotating shaft; and a stator disposed to face the rotor in the axial direction of the rotating shaft, the first core including a first pressed powder material having a plurality of first flaky magnetic metal particles and a first intercalated phase, the first flaky magnetic metal particles having an average thickness of from 10 nm to 100 μm, each first flaky magnetic metal particle having a first flat surface and a first magnetic metal phase including at least one first element selected from the group consisting of Fe, Co, and Ni, the average value of the ratio of the average length in the first flat surface with respect to the average thickness being from 5 to 10,000, the first intercalated phase existing between the first flaky magnetic metal particles and including at least one second element selected from the group consisting of oxygen (O), carbon (C), nitrogen (N), and fluorine (F), wherein in the first pressed powder material, the first flat surfaces are oriented approximately in parallel with a first principal plane of the first pressed powder material and have the difference in magnetic permeability on the basis of direction within the first principal plane, and the first principal plane of the first pressed powder material is disposed to be approximately perpendicular to the radial direction of the rotating electric machine.

A rotating electric machine according to embodiments is a rotating electric machine including a rotor including a first core and being capable of rotating around a rotating shaft; and a stator disposed to face the rotor in the axial direction of the rotating shaft, the first core including a first pressed powder material having a plurality of first flaky magnetic metal particles and a first intercalated phase, the first flaky magnetic metal particles having an average thickness of from 10 nm to 100 μm, each first flaky magnetic metal particle having a first flat surface and a first magnetic metal phase including at least one first element selected from the group consisting of Fe, Co, and Ni, the average value of the ratio of the average length in the first flat surface with respect to the average thickness being from 5 to 10,000, the first intercalated phase existing between the first flaky magnetic metal particles and including at least one second element selected from the group consisting of oxygen (O), carbon (C), nitrogen (N), and fluorine (F), wherein in the first pressed powder material, the first flat surfaces are oriented approximately in parallel with a first principal plane of the first pressed powder material and have the difference in magnetic permeability on the basis of direction within the first principal plane, and the first principal plane of the first pressed powder material is disposed to be approximately perpendicular to the radial direction of the rotating electric machine.

An alloy includes: an average Ni concentration of 1.5 at.% or more and 15.5 at.% or less; an average Co concentration of 0 at.% or more and 10.0 at.% or less; an average B concentration of 3.0 at.% or more and 16.0 at.% or less; an average P concentration of 0.5 at.% or more and 10.0 at.% or less; an average Cu concentration of 0 at.% or more and 2.0 at.% or less; an average Si concentration of 0 at.% or more and 6.0 at.% or less; an average C concentration of 0 at.% or more and 6.0 at.% or less; a total of average concentrations of Nb, Mo, Zr, W, V, Hf, Ta, Al, Ti, and Cr of 0 at.% or more and 6.0 at.% or less; and a total of an average Fe concentration, the average Ni concentration, and the average Co concentration of 78.0 at.% or more and 88.0 at.% or less.

Disclosed are a neodymium-iron-boron magnet material, a raw material composition, a preparation method therefor and a use thereof. The raw material composition of the neodymium-iron-boron magnet material comprises the following components by mass percentage: 29.5-32.8% of R′, wherein R′ includes Pr and Nd, and Pr≥17.15%; Al≥0.5%; 0.90-1.2% of B; and 60-68% of Fe. The percentages are the mass percentages relative to the total mass of the raw material composition of the neodymium-iron-boron magnet material. Without adding a heavy rare earth element to the neodymium-iron-boron magnet material, the performance of the neodymium-iron-boron magnet material can still be significantly improved.

An aspect of the present disclosure provides an amorphous metal porous body that is a metal porous body including pores, the amorphous metal porous body including: powder particle connection bodies in which at least portions of amorphous alloy powder particles adjacent to each other are connected in a network structure; and a plurality of pores provided between the powder particle connection bodies.

A nanocomposite comprising crystalline grains in an amorphous matrix, the crystalline grains comprising an iron (Fe)-nickel (Ni) compound and being separated from one another by the amorphous matrix; and one or more barriers between the crystalline grains and the amorphous matrix, the barriers being configured to inhibit growth of the crystalline grains during forming of the crystalline grains, a barrier of the one or more barriers being between a crystalline grain and the amorphous matrix; wherein the amorphous matrix comprises an increased resistivity relative to a resistivity of the crystalline grains; and wherein the amorphous matrix is configured to reduce losses of the crystalline grains caused by a change in a magnetic field applied to the crystalline grains relative to losses of the crystalline grains that occur without the amorphous matrix.

A method for producing a hollow article made of amorphous metal comprising the steps of: a) providing a metal composition, b) melting the composition according to step a) in order to obtain a melt, c) introducing the melt according to step b) into a cavity of a casting mold, the casting mold comprising an inner core, at least a portion of the lateral surface of the inner core being surrounded by a separation element, d) cooling the melt in the casting mold in order to obtain a molded part made of amorphous metal, e) removing the inner core and the separation element from the molded part according to step d) in order to obtain a hollow article made of amorphous metal. The present invention also relates to a hollow article made of amorphous metal, more particularly to a pipe made of amorphous metal.

An Fe-based nano-crystalline alloy formed from an alloy composition of (FeE).sub.(100-X-Y-Z)B.sub.XP.sub.YCu.sub.Z having an amorphous phase as a main phase, wherein 79≦100-X-Y-Z≦86 atomic %, 4≦X≦9 atomic %, 1≦Y≦10 atomic %, and 0.5≦Z<1.2 atomic %, and wherein (FeE) includes Fe and at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, W, Cr, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, Y, N, O and a rare-earth element, wherein a combined total of said at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, W, Cr, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, Y, N, O and a rare-earth element is in an amount of 3 atomic % or less relative to the whole composition.

The present invention is to provide powder made of iron-based metallic glass, the corrosion resistance of which is improved over the conventional powder made of iron-based metallic glass. The basic composition includes a group of iron-based metallic elements that predominantly has Fe, a group of metalloid elements that consists of Si, B, P, and C, and a little amount of a group of elements for improving the degree of supercooling that consists of either or both of Nb and Mo. The powder made of the iron-based metallic glass is obtained by adding to the basic composition an element for improving the corrosion resistance. The obtained powder made of the iron-based metallic glass has an excellent corrosion resistance, an excellent magnetic property, and an excellent insulating property.

The present disclosure is directed and formulations and methods to provide alloys having relative high strength and ductility. The alloys may be provided in seamless tubular form and characterized by their particular alloy chemistries and identifiable crystalline grain size morphology. The alloys are such that they include boride pinning phases. In what is termed a Class 1 Steel the alloys indicate tensile strengths of 700 MPa to 1400 MPa and elongations of 10-70%. Class 2 Steel indicates tensile strengths of 800 MPa to 1800 MPa and elongations of 5-65%. Class 3 Steel indicates tensile strengths of 1000 MPa to 2000 MPa and elongations of 0.5-15%.