Systems, methods, and compositions for improved warm-forming of light metal alloys, such as aluminum alloys, magnesium alloys, or titanium alloys, are disclosed. The systems and methods relate to pulse thermal processing, engineered plastic deformation, and micro-aging processes, as well as to the application of multi-functional lubricants. The disclosed multifunctional lubricant compositions provide a number of advantages when used in warm-forming processes, and in one embodiment, include organo-titanates and magnesium hydroxide, and in other embodiments an organo-titanate, magnesium hydroxide and boron nitride.

A method for producing a magnetic core includes a processing step of giving a desired shape to a strip made of an alloy composition, a heat-treating step of forming bcc-Fe crystals, and then a stacking step of obtaining a magnetic core having a shape. Here, the alloy composition is FeBSiPCuC and has an amorphous phase as a primary phase. In the heat-treating step, the strip is heated up to a temperature higher than a crystallization temperature of the alloy composition at a high heating rate.

A soft magnetic powder according to the present disclosure comprises a particle which comprises a plurality of nanosized crystallites and an amorphous phase existing around the crystallites, wherein the crystallites have an average grain diameter of 30 nm or less, and the amorphous phase has an average thickness of 30 nm or less; and wherein when a minor axis of a cross section of the particle is determined as r, an average Fe concentration in the amorphous phase is lower than an average Fe concentration in the crystallites in a region where a depth from a surface of the particle is 0.2 r or more and 0.4 r or less.

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.

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.

An FeNi alloy composition comprising an L1.sub.0-type FeNi ordered phase is provided, which satisfies at least one of the conditions that the sum of the content of Fe and the content of Ni is 90 at. % or less and that the FeNi alloy composition contains Si, and preferably satisfies at least one of the conditions that the ratio of the content of Fe to the content of Ni is 0.3 or more and 5 or less and that the sum of the content of Fe and the content of Ni is 65 at. % or more.

The object of the present invention is to provide an alloy ribbon capable of having excellent adhesiveness between the alloy ribbons when a plurality of the alloy ribbons is stacked; and also, to provide a magnetic core using the alloy ribbon. The present invention is an alloy ribbon comprising metals scattered on at least one surface of the alloy ribbon, in which diameters of the scattered metals are 1 m or more, and the scattered metals include Cu.

One embodiment provides a composition, the composition comprising: an alloy that is at least partially amorphous and is represented by a chemical formula: (Zr, Ti).sub.aM.sub.bN.sub.cSn.sub.d, wherein: M is at least one transition metal element; N is Al, Be, or both; a, b, c, and d each independently represents an atomic percentage; and a is from about 30 to 70, b is from about 25 to 60, c is from about 5 to 30, and d is from about 0.1 to 5.

A device for the production of a metallic strip using a rapid solidification technology is provided. The device includes a movable heat sink with an external surface onto which a melt is poured and on which the melt solidifies to produce the strip, and which device includes a rolling device which can be pressed against the external surface of the movable heat sink while the heat sink is in motion.

A soft magnetic alloy has a main component of Fe. The soft magnetic alloy contains P. A Fe-rich phase and a Fe-poor phase are contained. An average concentration of P in the Fe-poor phase is 1.5 times or larger than an average concentration of P in the soft magnetic alloy by number of atoms.