Embodiments herein relate to a method of making roll formed objects of a bulk solidifying amorphous alloy comprising a metal alloy, and articles thereof. The roll forming includes forming a portion of the bulk solidifying amorphous alloy at a temperature greater than a glass transition temperature (Tg) of the metal alloy. The roll forming is done such that a time-temperature profile of the portion during the roll forming does not traverse through a region bounding a crystalline region of the metal alloy in a time-temperature-transformation (TTT) diagram of the metal alloy.

Described herein is a method of producing an alloy. The method includes pouring a stream of molten mixture of component elements of the alloy, separating the stream into discrete pieces, solidifying the discrete pieces by cooling before the discrete pieces contact any liquid or solid. Also described herein is another method of producing an alloy. This method includes pouring and solidifying a stream of molten mixture of component elements of the alloy into a rod or pulling a rod from a molten mixture of component elements of the alloy, before the rod contacts any liquid or solid, separating the rod into discrete pieces. An apparatus suitable for carrying out the methods above can include a container from which the molten stream is poured or the solid rod extends, one or more coil, conductive plates, a laser source, or an electron beam source arranged around the molten stream or the solid rod and configured to separate the molten stream or the solid rod into discrete pieces.

A soft magnetic powder has a composition represented by Fe.sub.100-a-b-c-d-e-fCu.sub.aSi.sub.bB.sub.cM.sub.dM.sub.eX.sub.f (at %) (wherein M is Nb, W, Ta, Zr, Hf, Ti, or Mo, M is V, Cr, Mn, Al, a platinum group element, Sc, Y, Au, Zn, Sn, or Re, X is C, P, Ge, Ga, Sb, In, Be, or As, and a, b, c, d, e, and f are numbers that satisfy the following formulae: 0.1a3, 0<b30, 0<c25, 5b+c30, 0.1d30, 0e10, and 0f10), wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and the Vickers hardness of the particles is 1000 or more and 3000 or less.

A method for manufacturing an amorphous alloy by using liquid pig iron is described. An exemplary embodiment provides a method for manufacturing an amorphous alloy, including providing liquid pig iron, adding an alloy material to the liquid pig iron, and solidifying the liquid pig iron.

A soft magnetic alloy including a composition having a formula of ((Fe.sub.(1-(+))X1.sub.X2.sub.).sub.(1-(a+b+c+d+e))M.sub.aB.sub.bP.sub.cCr.sub.dCu.sub.e).sub.1-fC.sub.f. X1 is one or more elements selected from a group of Co and Ni. X2 is one or more elements selected from a group of W, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements. M is one or more elements selected from a group of Nb, Hf, Zr, Ta, Ti, Mo, and V. 0.030a0.14, 0.028b0.20, 0<c0.014, 0<d0.040, 0e0.030, 0f0.040, 0, 0, and 0+0.50 are satisfied.

The instant invention relates to a magnetocaloric material based on NdPrFe.sub.17 melt-spun ribbons. This material has improved properties when compared with other similar magnetocaloric (MC) materials since it has an enhanced refrigeration capacity in the room temperature range due to its broader magnetic entropy change as function of the temperature curve. This material is useful as magnetic refrigerant as a part of magnetocaloric refrigerators.

A soft magnetic powder has a composition represented by Fe.sub.100-a-b-c-d-e-fCu.sub.aSi.sub.bB.sub.cM.sub.dM.sub.eX.sub.f (at %) (wherein M is at least one element selected from the group consisting of Nb and the like, M is at least one element selected from the group consisting of V and the like, X is at least one element selected from the group consisting of C and the like, and a, b, c, d, e, and f satisfy the following formulae: 0.1a3, 0<b30, 0<c25, 5b+c30, 0.1d30, 0e10, and 0f10), wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and an oxygen content is between 50 ppm and 700 ppm (mass ratio).

A soft magnetic powder has a composition represented by Fe.sub.100a-b-c-d-e-f-g-hCu.sub.aSi.sub.bB.sub.cM.sub.dM.sub.eX.sub.fAl.sub.gTi.sub.h (at %) (wherein M is at least one element selected from the group consisting of Nb and the like, M is at least one element selected from the group consisting of V and the like, X is at least one element selected from the group consisting of C and the like, and a, b, c, d, e, f, g, and h satisfy the following formulae: 0.1a3, 0<b30, 0<c25, 5b+c30, 0.1d30, 0e10, 0f10, 0.002g0.032, and 0h0.038), wherein a crystalline structure having a particle diameter of 1 to 30 nm is contained in an amount of 40 vol % or more.

An alloy composition which includes 82 atomic % to 86 atomic % Fe, 6 atomic % to 12 atomic % B, 3 atomic % to 8 atomic % P, 0.6 atomic % to 1.0 atomic % Cu, 0 atomic % to 5 atomic % C, 0 atomic % to 3 atomic % E, 0 wt. % to 0.5 wt. % Al, 0 wt. % to 0.3 wt. % Ti, 0 wt. % to 0.94 wt. % Mn, 0 wt. % to 0.082 wt. % S, 0 wt. % to 0.3 wt. % O and 0 wt. % to 0.01 wt. % N. In the alloy composition, E is at least one element selected from the group consisting of Zr, Hf, Nb, Ta, Mo, W, Cr, Ag, Zn, Sn, As, Sb, Bi, Y and a rare-earth element, wherein Cr is contained in an amount of 0 atomic % to 1 atomic %, and the total amount of Fe and E is 82 atomic % to 86 atomic %. The alloy composition has a structure which includes an amorphous phase.

Disclosed are embodiments of a vessel configured to contain a secondary magnetic induction field therein for melting materials, and methods of use thereof. The vessel can be used in an injection molding apparatus having an induction coil positioned adjacent to the vessel. The vessel can have a tubular body configured to substantially surround and receive a plunger tip. Longitudinal slots or gaps extend through the thickness of the body to allow and/or direct eddy currents into the vessel during application of an RF induction field from the coil. The body also includes temperature regulating lines configured to flow a liquid within. The temperature regulating lines can be provided to run longitudinally within the wall(s) of the body between its inner bore and outer surface(s). A flange may be provided at one end of the body to secure the body within an injection molding apparatus.