Abstract: Electromagnetic steel sheet from a high-purity steel slab, composed essentially of Si 2.0 to 8.0 wt %, Mn 0.005 to 3.0 wt % and Al 0.0010 to 0.012 wt % with each of Se, S, N and O each not more than 30 ppm.

Abstract: An improved process that is commercially practical for forming an oxide film cobalt conversion coating exhibiting corrosion resistance and paint adhesion properties on a substrate, where the substrate is aluminum or aluminum alloy, the process including the steps of: (a) providing an oxide film forming cobalt conversion solution comprising an aqueous reaction solution, containing no triethanolamine (TEA), prepared by reacting the following starting materials: (1) a water soluble cobalt-II salt CoX2 where X=Cl, Br, NO3, CN, SCN, ⅓PO4, ½SO4, ½CO3, formate, or acetate; (2) a water soluble complexing agent selected from the group consisting of MeNO2, MeAc, MeFm, NH4Ac, and NH4Fm where Me is Na, K, or Li; Ac is acetate; and Fm is formate; (3) an accelerator selected from the group consisting of NaClO3, NaBrO3, and NaIO3; (4) water; and (b) contacting the substrate with the aqueous reaction solution for a sufficient amount of time to oxidize the surface of the substrate, whereby the oxid

Abstract: A method for producing a grain-oriented electrical steel sheet excellent in magnetic property, comprising the steps of; heating a slab containing a prescribed amount of Al to a temperature of 1,200° C. or higher, hot-rolling the slab into a hot-rolled strip, annealing the strip as required, cold-rolling it once or twice or more with intermediate annealing(s), and decarburization annealing the cold rolled sheet, and final box annealing after the application of an annealing separator to prevent strip sticking during the annealing, characterized by heating the slab to a temperature (slab heating temperature Ts (° C.)) higher than the complete solution temperature of substances having intensities as inhibitors and nitriding treating the decarburization annealed steel sheet before the commencement of secondary recrystallization during the final box annealing.

Abstract: A glassy metal alloy consists essentially of the formula CoaNibFecMdBeSifCg where M is at least one element selected from the group consisting of Cr, Mo, Mn and Nb, “a-g” are in atom percent and the sum of “a-g” equals 100, “a” ranges from about 25 to about 60, “b” ranges from about 5 to about 45, “c” ranges from about 6 to about 12, “d” ranges from about 0 to about 3, “e” ranges from about 5 to 25, “f” ranges from about 0 to about 15 and “g” ranges from about 0 to 6, said alloy having a value of the saturation magnetostriction between −3 ppm and +3 ppm. The alloy can be cast by rapid solidification from the melt into ribbon, sheet or wire form. The alloy exhibits rounded or rectangular or sheared B-H hysteresis behaviors in its as-cast condition.

Abstract: A conversion coating solution and process forms a stable and corrosion-resistant layer on metal substrates or layers or, more preferably, on a boehmite layer or other base conversion coating. The conversion coating process involves contacting the substrate, layer or coating with an aqueous alkali metal isomolybdate solution in order to convert the surface of the substrate, layer or coating to a stable conversion coating. The aqueous alkali metal molybdates are selected from sodium molybdate (Na2MoO4), lithium molybdate (Li2MoO4), potassium molybdate (K2MoO4), or combinations thereof, with the most preferred alkali metal molybdate being sodium molybdate. The concentration of alkali metal molybdates in the solution is preferably less than 5% by weight.

Abstract: A method of coating a substrate is provided. A metallic layer comprising at least about 8% nickel is deposited by thermal spraying on a substrate. The metallic layer has an average density greater than about 80%. A slurry layer comprising from about 10% to about 90% aluminum or alloy thereof is deposited on the metallic layer. Heating to a temperature in excess of 500° C. (932° F.) results in the formation of an intermetallic layer of NiAl. The resulting coating is particularly suited for protecting the surfaces of incinerators or other combustion chambers.

Abstract: A method of processing a Ni—Ti—Nb based alloy which contains from about 4 to about 14 atomic percent Nb and in which the ratio of atomic percent Ni to atomic percent Ti is from about 3.8 to 1.2, comprising working the alloy sufficient to impart a textured structure to the alloy, at a temperature below the recrystallisation temperature of the alloy. Preferably, the alloy is worked at least 10%, by a technique such as rolling or drawing, or another technique which produces a similar crystal structure. The alloy has increased stiffness compared with Ni—Ti binary alloys with superelastic properties.

Abstract: In accordance with the present invention, an apparatus and method for application of a chemical process on a component surface is provided. In an embodiment for an apparatus for preparing a component surface for application of a chemical process, the apparatus includes a base, an o-ring retainer, an o-ring, a boot, and a retention ring. The component is mounted on the base. The o-ring is positioned on the o-ring retainer and the o-ring retainer is inserted through an aperture in the component and mated with the base. The assembled component, base, o-ring retainer, and o-ring are positioned within the boot. The retention ring is positioned around the boot.

Abstract: According to the invention, a nonoriented electromagnetic steel sheet being small in the magnetic anisotropy in a high frequency zone and thus excellent in the magnetic properties as a rotating machine and having an excellent press formability such as punching property or the like can be obtained stably by adjusting a chemical composition of the oriented electromagnetic steel sheet to a given range, and establishing the following equation (1) between L, C average iron loss W15/50(L+C)[W/kg] and L, C average magnetic flux density B50(L+C)[T] with respect to measured values of magnetic properties using Epstein test pieces: B50(L+C)≧0.03·W15/50(L+C)+1.63  (1) and satisfying a ratio of D iron loss W10/400(D)[W/kg] to L, C average iron loss W10/400(L+C)[W/kg] by the following equation (2): W10/400(D)/W10/400(L+C)≦1.

Abstract: The present invention provides a method for producing a composite hard magnetic material, wherein a composite powder—prepared by mixing; a composite hard magnetic material produced by consolidating a composite powder prepared by mixing an alloy powder having an amorphous phase containing a main component Co and at least Sm, and an alloy powder comprising an amorphous phase as a principal phase and containing at least Fe and/or Co, rare earth elements R and B; an alloy powder having an amorphous phase containing a main component Co and at least Sm; and an alloy powder having an amorphous phase containing at least Fe and/or Co, rare earth elements R and B—is consolidated by taking advantage of softening phenomenon caused by crystallization of the amorphous phase in the alloy powder comprising an amorphous phase as a principal phase.

Abstract: A creep resistant titanium aluminide alloy having fine particles such as boride particles at colony boundaries and/or grain boundary equiaxed structures. The alloy can include alloying additions such as ≦10 at % W, Nb and/or Mo. The alloy can be free of Cr, V, Mn, Cu and/or Ni and can include, in atomic %, 45 to 55% Ti, 40 to 50% Al, 1 to 10% Nb, 0.1 to 2% W, up to 1% Mo and 0.1 to 0.8% B or the alloy can include, in weight %, 50 to 65% Ti, 25 to 35% Al, 2 to 20% Nb, up to 5% Mo, 0.5 to 10% W and 0.01 to 0.5% B.

Abstract: A non-oriented electrical steel sheet excellent in permeability whose steel contains, in percentage by weight, 0.1%≦Si≦1.0%, 0.1%≦Mn≦0.8%, 0.1%≦Al≦1.0% and the balance of Fe and unavoidable impurities, and which has an ay transformation, an electrical resistivity of not less than 10×10−8 &OHgr;m and not greater than 32×10−8 &OHgr;m and a permeability &mgr;{fraction (15/60)} of not less than 1500 (Gauss/Oe); and a method of producing the same.

Abstract: A soft magnetic alloy strip is manufactured by a single roll method. The soft magnetic alloy strip is 0.2×d mm or less (, which “d” is a width of the strip,) in warpage in the widthwise direction of the strip, and has a continuous, long length not less than 50 m, in which a width of an air pockets occurring on a roll contact face is not more than 35 &mgr;m, a length of the air pockets is not more than 150 &mgr;m, and the centerline average roughness Ra of the roll contact face is not more than 0.5 &mgr;m.

Abstract: The invention relates to a process for the coating of electric steel strips with an oxide powder as annealing separator by the application of an aqueous solution which contains mainly MgO and also at least one additive, including a chlorine-containing compound. The characterizing feature of the invention is that the additive added to the aqueous solution is ammonium chloride (NH4Cl or NH4Cl.nH2O).

Abstract: A new high strength steel alloy characterized by having high DC magnetic saturation, ultra high tensile, yield and fatigue strengths that is particularly suited for use as a hammerspring in hammerbanks in impact printers and for other applications where magnetic alloys are used and high mechanical strength is desirable. The alloy is formed of the following composition in weight percent: about 20% to about 35% Co; about 2% to about 6.0% Ni; about 0.0 to about 0.15% C; about 0.75% to about 3% Mo; 0% to about 3.0% Cr; 0% to about 2% Mu; 0% to about 0.02% Si; 0% to about 0.003% P; 0% to about 0.001% S; 0% to about 0.005% 02+N2;with the balance comprised of Fe. A process for making the alloy includes homogenizing preferably at a temperature of 2150° F. for 24 hours, and solution treating at a temperature in the range of about 1500° F. to about 1700° F. under a vacuum or inert gas protective atmosphere; air-cooling; and precipitation aging at a temperature in the range of about 800° F.

Abstract: Grain-oriented magnetic steel sheet made by the method comprising of hot rolling and final finish annealing, wherein (1) the O content in the steel slab is limited to up to about 30 wtppm; (2) for the entire steel sheet including an oxide film before final finish annealing, from among impurities, the Al content is limited to up to about 100 wtppm, and the contents of B, V, Nb, Se, S, and N, to up to about 50 wtppm; and (3) during final finish annealing, the N content in the steel is, at least in the temperature region of from about 850 to 950° C., limited within the range of from about 6 to 80 wtppm.

Abstract: Disclosed is a thin alloy ribbon prepared by the strip casting method as an intermediate for the preparation of a sintered rare earth-based permanent magnet or, in particular, a neodymium/iron/boron-type permanent magnet. The thin alloy ribbon is characterized by a specific volume fraction of the four-phase coexisting region consisting of the &agr;-iron phase, R-rich phase, RXT4B4 phase and R2T14B phase each having an average grain diameter in a specified range and a specific volume fraction of the chill crystalline phase. When these requirements are satisfied, the sintered rare earth-based permanent magnet prepared from the thin alloy ribbons can be imparted with improved magnetic properties and high sintering density even without increasing the sintering temperature.

Abstract: There is provided a multielement rare earth-iron interstitial permanent magnetic material having the formula of (R1−&agr;R″&agr;)x(Mo1−&bgr;M&bgr;)y Fe100−x−y−zlz, wherein, R is a light rare earth element; R′ is a heavy rare earth element; &agr; is from 0.01 to 0.14; x is an atomic percent from 4 to 15; M is an element of IIIA, IVA, IVB, VB, VIB and VIIB families in the periodic table; &bgr; is from 0.01 to 0.98; y is an atomic percent from 3 to 20; l is an element occupying the interstitial site of the crystal selected from the first and the second periodic groups. There is also provided a process for producing high performance anisotropic magnetic powder and magnet by using the above-mentioned material.

Abstract: A powder magnetic core is made from powder containing Fe-based soft magnetic powder as a major component. Provided that an initial permeability of the core is &mgr;0 and that a permeability of the core observed when a magnetic field of 24 kA/m is applied to the core is &mgr;, &mgr;0 and &mgr; fulfill the relationship &mgr;/&mgr;0≧0.5. Specifically, the powder magnetic core is made from 60 to 75 volume % of soft magnetic powder having an aspect ratio (L2/L1) of 1 to 1.5 and the balance containing an insulating binder as a major component, and the content of the insulating binder is 5 to 20 parts by weight with respect to 100 parts by weight of the soft magnetic powder. The powder magnetic core shows a small reduction in the permeability even when the strength of a magnetic field applied thereto is increased.

Abstract: A magnetic material has a composition expressed by the following general formula, general formula: {(R1XR21-X)YBZT1-Y-Z}1-QNQ (where, R1 is at least one kind of element selected from rare earth elements, R2 is at least one kind of element selected from Zr, Hf, Ti and Sc, T is at least one kind of element selected from Fe and Co, and X, Y, Z and Q designate numerical values satisfying 0.5≦X<1, 0.05≦Y≦0.2, 0≦Z≦0.1 and 0.1≦Q≦0.2), and includes 5 volume % or more of a Th2Ni17 crystal phase. The magnetic material has a recrystallization texture of which average grain diameter is in the range of from 0.02 to 50 &mgr;m, and is excellent in magnetic property. Such a magnetic material is obtained by giving a HDDR treatment to a mother alloy of which principal phase is a Th2Ni17 crystal phase.