A method may include annealing a material including iron and nitrogen in the presence of an applied magnetic field to form at least one Fe.sub.16N.sub.2 phase domain. The applied magnetic field may have a strength of at least about 0.2 Tesla (T).

The present disclosure provides an iron-based amorphous alloy as shown in formula (I): Fe.sub.aSi.sub.bB.sub.cP.sub.dM.sub.e (I); wherein a, b, c, d, and e are each independently atomic percentages of corresponding components; 80.5≤a≤84.0, 3.0≤b≤9.0, 8.0≤c≤15.0, 0.001≤d≤0.3, e≤0.4, and a+b+c+d+e=100; M is impurity element. The present disclosure provides an iron-based amorphous strip which has a saturation magnetic induction less than 1.62T. The present disclosure also provides a method for preparing the iron-based amorphous alloy. Further, after appropriate heat treatment, excellent soft magnetic properties will be obtained. The alloy material can be used as core material in the manufacture of power transformer, generator and engine.

An amorphous soft magnetic alloy of the formula (Fe.sub.1-αTM.sub.α).sub.100-w-x-y-zP.sub.wB.sub.xL.sub.ySi.sub.z Ti.sub.pC.sub.qMn.sub.rCu.sub.s, wherein TM is Co or Ni; L is Al, Cr, Zr, Mo or Nb; 0≤α≤0.3, 2≤w≤18 at %, 2≤x≤18 at %, 15≤w+x≤23 at %, 1<y≤5 at %, 0≤z≤4 at %; p, q, r, and s represents an addition ratio such that the total mass of Fe, TM, P, B, L and Si is 100, and 0≤p≤0.3, 0≤q≤0.5, 0≤r≤2, 0≤s≤1 and r+s>0; the composition fulfills one of the following conditions: L is Cr, Zr, Mo or Nb; or L is a combination of Al and Cr, Zr, Mo or Nb, wherein 0<Al≤5 at %, 1≤Cr≤4 at %, 0<Zr≤5 at %, 2≤Mo≤5 at %, and 2≤Nb≤5 at %; the alloy has a crystallization start temperature (Tx) which is 550° C. or less, a glass transition temperature (Tg) which is 520° C. or less, and a supercooled liquid region represented by ΔTx=Tx−Tg, which is 20° C. or more.

An Fe-base, soft magnetic alloy is disclosed. The alloy has the general formula Fe.sub.100-a-b-c-d-x-y M.sub.aM′.sub.bM″.sub.cM′″.sub.d P.sub.x Mn.sub.y where M is Co and/or Ni, M′ is one or more of Zr, Nb, Cr, Mo, Hf, Sc, Ti, V, W, and Ta, M″ is one or more of B, C, Si, and Al, and M′″ is selected from the group consisting of Cu, Pt, Ir, Zn, Au, and Ag. The subscripts a, b, c, d, x, and y represent the atomic proportions of the elements and have the following atomic percent ranges: 0≤a≤10, 0≤b≤7, 5≤c≤20, 0≤d≤5, 0.1≤x≤15, and 0.1≤y≤5.
The balance of the alloy is iron and usual impurities. Alloy powder, a magnetic article made therefrom, and an amorphous metal article made from the alloy are also disclosed.

The present invention relates to a silicon based alloy comprising between 45 and 95% by weight of Si; max 0.05% by weight of C; 0.4-30% by weight Cr; 0.01-10% by weight of Al; 0.01-0.3% by weight of Ca; max 0.10% by weight of Ti; up to 25% by weight of Mn; 0.005-0.07% by weight of P; 0.001-0.02% by weight of S; the balance being Fe and incidental impurities in the ordinary amount, a method for the production of said alloy and the use thereof.

Disclosed are a high strength-ductility matched oxide-particles dispersion steel, a preparation method and application thereof, belonging to the technical field of novel structural materials. The high strength-ductility matched oxide-particles dispersion steel comprises the following components in percentage by mass: chromium (Cr) 11.0-13.0 percent (%), tungsten (W) 1.0-2.0%, vanadium (V) 0.1-0.2%, yttrium (Y) 0.3-0.4%, oxygen (O) 0.05-0.15%, silicon (Si) 1.5-2.5%, carbon (C)0.0016%, with iron (Fe) and unavoidable impurities accounting for a rest. The high strength-ductility matched oxide-particles dispersion steel in the present application is prepared, using a powder metallurgical preparation method, by introducing high-content of silicon elements and introducing high-density oxide particles with a complete core-shell structure using a specific heat treatment regime.

A method may include annealing a material including iron and nitrogen in the presence of an applied magnetic field to form at least one Fe.sub.16N.sub.2 phase domain. The applied magnetic field may have a strength of at least about 0.2 Tesla (T).

A method may include annealing a material including iron and nitrogen in the presence of an applied magnetic field to form at least one Fe.sub.16N.sub.2 phase domain. The applied magnetic field may have a strength of at least about 0.2 Tesla (T).

Systems and methods in accordance with embodiments of the invention fabricate objects including amorphous metals using techniques akin to additive manufacturing. In one embodiment, a method of fabricating an object that includes an amorphous metal includes: applying a first layer of molten metallic alloy to a surface; cooling the first layer of molten metallic alloy such that it solidifies and thereby forms a first layer including amorphous metal; subsequently applying at least one layer of molten metallic alloy onto a layer including amorphous metal; cooling each subsequently applied layer of molten metallic alloy such that it solidifies and thereby forms a layer including amorphous metal prior to the application of any adjacent layer of molten metallic alloy; where the aggregate of the solidified layers including amorphous metal forms a desired shape in the object to be fabricated; and removing at least the first layer including amorphous metal from the surface.

Provided is a soft magnetic alloy including Fe, as a main component, and including C. the soft magnetic alloy includes an Fe composite network phase having Fe-rich grids connected in a continuous measurement range including 80000 grids, each of which size is 1 nm1 nm1 nm. An average of C content ratio of the Fe-poor grids having cumulative frequency of 90% or more from lower C content is 5.0 times or more to an average of C content ratio of the whole soft magnetic alloy.