Abstract: The disclosed permanent magnet has a coercive force of larger than 500 Oe, a residual magnetic flux density of larger than 5 kG, and a maximum energy product of larger than 2 MGOe, and it consisting essentially of 48.about.66.9 Atm % of iron, 33.about.47 Atm % of platinum, and 0.1.about.10 Atm % of niobium. It includes a crystal structure of an incomplete single .gamma.1 phase of a face-centered tetragonal system due to either the composition thereof or heat treatment applied thereto. The permanent magnet are made by heating an alloy of the above main composition at 900.degree..about.1,400.degree. for one minute to ten hours and quenching the alloy at a high speed of faster than 30.degree. C./minute but slower than 2,000.degree. C./sec.

Abstract: A high damping capacity alloy comprising of 0.3-20% by weight of Si and the remainder of Al and, as the case may be, further comprising of 0.1-50% by weight in total of at least one subingredient of Pb, Sb, Ge, Ce, Ni, Co, Fe, Nb, Zr, Ti, Ca and B, the alloy having a damping capacity of not less than 6.times.10.sup.-3 after cold working with a reduction of area of at least 5%, and a process for producing the same.

Abstract: A wear-resistant alloy of high permeability having an effective permeabil of at least about 3,000 at 1 KHz, a saturation magnetic flux density of at least about 4,000 G, and a recrystallization texture of {110}<112>+{311}<112> is provided. The alloy is produced by cold working a forged or hot worked ingot of an alloy of a desired composition at a cold working ratio of at least about 50%, heating the cold worked alloy at a temperature which is below the m.p. of the alloy and not less than about 900.degree. C. and cooling the heated alloy from a temperature which is not less than an order-disorder transformation point (about 600.degree. C.) of the alloy. Alternatively, the alloy is produced by reheating the cooled alloy to a temperature which is not over than the order-disorder transformation point, and cooling the reheated alloy.

Abstract: A wear-resistant alloy of high permeability having an effective permeabil of at least about 3,000 at 1 KHz, a saturation magnetic flux density of at least about 4,000 G, and a recrystallization texture of {110}<112>+{311}<112> is provided. The alloy is produced by cold working a forged or hot worked ingot of an alloy of a desired composition at a cold working ratio of at least about 50%, heating the cold worked alloy at a temperature which is below the m.p. of the alloy and not less than about 900.degree. C., and cooling the heated alloy from a temperature which is not less than an order-disorder transformation point (about 600.degree. C.) of the alloy. Alternatively, the alloy is produced by reheating the cooled alloy to a temperature which is not over than the order-disorder transformation point, and cooling the reheated alloy.

Abstract: The disclosed permanent magnet has a coercive force of larger than 500 Oe, a residual magnetic flux density of larger than 5 kG, and a maximum energy product of larger than 2 MGOe, and it consisting essentially of 48.about.66.9 Atm % of iron, 33.about.47 Atm % of platinum, and 0.1.about.10 Atm % of niobium. It includes a crystal structure of an incomplete single .gamma..sub.1 phase of a face-centered tetragonal system due to either the composition thereof or heat treatment applied thereto. The permanent magnet is made by heating an alloy of the above main composition at 900.degree..about.400.degree. for one minute to ten hours and quenching the alloy at a high speed of faster than 30.degree. C./minute but slower than 2,000.degree. C./sec.

Abstract: A wear-resistant alloy of high permeability having an effective permeabil of at least about 3,000 at 1 KHz, a saturation magnetic flux density of at least about 4,000 G, and a recrystallization texture of {110}<112>+{311}<112> is provided. The alloy is produced by cold working a forged or hot worked ingot of an alloy of a desired composition at a cold working ratio of at least about 50%, heating the cold worked alloy at a temperature which is below the m.p. of the alloy and not less than about 900.degree. C., and cooling the heated alloy from a temperature which is not less than an order-disorder transformation point (about 600.degree. C.) of the alloy. Alternatively, the alloy is produced by reheating the cooled alloy to a temperature which is not over than the order-disorder transformation point, and cooling the reheated alloy.

Abstract: A high damping capacity alloy comprising of 0.3-20% by weight of Si and the remainder of Al and, as the case may be, further comprising of 0.1-50% by weight in total of at least one subingredient of Pb, Sb, Ge, Ce, Ni, Co, Fe, Nb, Zr, Ti, Ca and B, the alloy having a damping capacity of not less than 6.times.10.sup.-3 after cold working with a reduction of area of at least 5%, and a process for producing the same.

Abstract: The disclosed alloy has a temperature coefficient of electric resistance h an absolute value smaller than 100 ppm/.degree.C. in a temperature range between the order-disorder transformation point and melting point thereof, which alloy is made by molding an alloy consisting of 59.0-88.0 wt. % of palladium and the remainder of iron with a small amount of impurities, quenching the molded alloy from a temperature between the above-mentioned order-disorder transformation point and melting point to room temperature, cold working the quenched alloy for shaping, and annealing the shaped alloy.

Abstract: A high damping capacity alloy comprising of 0.1-95% by weight of Zn and the remainder of Al and, as the case may be, further comprising of 0.1-50% by weight in total of at least one subingredient of Sn, Pb, Sb, Ce, Cu Ta, Ni, Co, Fe, Nb, Zr, Si, Ti, Ca and B, the alloy having a damping capacity of not less than 6.times.10.sup.-3 after cold working with a reduction of area of at least 5%, and a process for producing the same.

Abstract: The disclosed magnetic alloy essentially consists of 60-86% of nickel (Ni), .5-14% of niobium (Nb), 0.001-5% in sum of at least one element selected from the group consisting of gold, silver, platinum group elements, gallium, indium, thallium, strontium, and barium, and the balance of iron with a trace of impurities, which alloy renders magnetic properties suitable for recording-and-reproducing head upon specific heat treatment.

Abstract: The disclosed alloy has a temperature coefficient of electric resistance with an absolute value smaller than 100 ppm/.degree.C. in a temperature range between the order-disorder transformation point and melting point thereof, which alloy is made by molding an alloy consisting of 59.0-88.0 wt. % of palladium and the remainder of iron with a small amount of impurities, quenching the molded alloy from a temperature between the above-mentioned order-disorder transformation point and melting point to room temperature, cold working the quenched alloy for shaping, and annealing the shaped alloy.

Abstract: An electrical resistant alloy for use in a sensing coil having a small temperature dependence of electric resistance over a wide temperature range and a method of producing the same are disclosed. This alloy consists of 55.5 to 60.6 wt % of palladium and 44.5 to 39.4 wt % of silver and an inevitable amount of impurities, and has a temperature coefficient of electric resistance of .+-.20.times.10.sup.-6 /.degree.C. over a temperature range of -50.degree. C. to +730.degree. C.

Abstract: An electrical resistant alloy for use in a sensing coil having a small temperature dependence of electric resistance over a wide temperature range and a method of producing the same are disclosed. This alloy consists of 55.5 to 60.6 wt % of palladium and 44.5 to 39.4 wt % of silver and an inevitable amount of impurities, and has a temperature coefficient of electric resistance of .+-.20.times.10.sup.-6 /.degree.C. over a temperature range of -50.degree. C. to +730.degree. C.

Abstract: A magnet alloy useful for a magnetic recording and reproducing head consist f by weight of 70 to 86% of nickel, more than 1% and less than 14% of niobium, and 0.001 to 3% of beryllium as main ingredients and 0.01 to 10% of total amount of subingredients selected from the group consisting of not more than 8% of molybdenum, not more than 7% of chromium, not more than 10% of tungsten, not more than 7% of titanium, not more than 7% of vanadium, not more than 10% of manganese, not more than 7% of germanium, not more than 5% of zirconium, not more than 2% of rare earth metal, not more than 10% of tantalum, not more than 1% of boron, not more than 5% of aluminum, not more than 5% of silicon, not more than 5% of tin, not more than 5% of antimony, not more than 10% of cobalt and not more than 10% of copper, a small amount of impurities and the remainder iron and having initial permeability of more than 3,000, maximum permeability of more than 5,000, and Vickers hardness of more than 130.

Abstract: The disclosed permanent magnet has a coercive force of 500 Oe or more, a idual magnetic flux density of 5 kG or more, and a maximum energy product of 2 MG. Oe or more. The magnet alloy consists essentially of platinum and iron, and has an initial state of homogeneous dispersion of .gamma..sub.1 phase of face-centered tetragonal type in a .gamma. phase matrix of face-centered cubic type. To produce the magnet, the alloy is heated at 900.degree. to 1,400.degree. C. for 1 minute to 100 hours for homogenizing solid solution treatment, and quenched in water or in air at a rate of 30.degree. C./minute to 2,000.degree. C./second.

Abstract: An electrical resistant alloy for use in a sensing coil having a small temperature dependence of electric resistance over a wide temperature range and a method of producing the same are disclosed. This alloy consists of 55.5 to 60.6 wt % of palladium and 44.5 to 39.4 wt % of silver and an inevitable amount of impurities, and has a temperature coefficient of electric resistance of .+-.20.times.10.sup.-6 /.degree.C. over a temperature range of -50.degree. C. to +730.degree. C.

Abstract: A method for producing a high damping capacity alloy comprising 0.1-10% by eight of at least one of W, Si and Ti and the remainder of Fe and, further comprising 0.01-45% in total, as a subingredient, of at least one of Cr, Al, Sb, Nb, V, Ta, Sn, Zn, Zr, Cd, Gd, Ga, P, Au, Ag, Ge, Sm, Se, Ce, La, Bi, Pt, Pd, Be, Mg, Re, Rh, Y, Pb, As, B, Eu and S, comprising the steps of(1) melting said starting material,(2) shaping the product into a desired form,(3) heating the thus formed article at a high temperature between its melting point and 800.degree. C. for more than 1 minute to 100 hours, and(4) cooling the article at a suitable cooling rate of 1.degree. C./second to 1.degree.0 C./hour,so as to have a high damping capacity of more than 2.times.10.sup.-3 and high cold workability over wide temperature range and a heat-treated high damping capacity alloy thereof.

Abstract: A high damping capacity alloy comprising 0.01-5% by weight of Cu and/or Mo and the remainder of Fe and, as the case may be, further comprising 0.01-40% in total, as an additional component, of at least one of Cr, Al, Ni, Mn, Sb, Nb, W, Ti, V, Ta, Si, Sn, Zn, Zr, Co, Pb, C and Y, the alloy having high damping capacity of more than 2.times.10.sup.-3 and high cold workability over wide temperature range.

Abstract: A high damping capacity alloy comprising 1-45% by weight of Co and the remainder being Fe and, as the case may be, further comprising 0.01-30% in total, as an additional component, of at least one of Ni, Cr, Al, Cu, Mn, Sb, Nb, Mo, W, Ti, V, Ta, Si, Sn, Zn, Zr, C and Y, the alloy having high damping capacity more than 2.times.10.sup.-3, high cold workability and high corrosion resistance over wide temperature range.

Abstract: A rectangular hysteresis magnetic alloy consisting of 0.5-25 wt. % of Ta the balance of Fe and a rectangular hysteresis magnetic alloy consisting of 0.5-25 wt. % of Ta, 0.01-60 wt. % in total amount of at least one element selected from the group consisting of 0-10% of V, 0-0.5% of Nb, 0-35% of Cr, 0-20% of Mo, 0-20% of W, 0-25% of Ni, 0-25% of Cu, 0-40% of Co, 0-5% of Ti, 0-5% of Zr, 0-5% of Si, 0-10% of Al, 0-5% of Ge, 0-5% of Sn, 0-5% of Sb, 0-3% of Be, 0-15% of Mn, 0-2% of Ce and 0-1.5% of C, and the balance of Fe have an excellent rectangular hysteresis loop, a coercive force of more than 2 oerstads, excellent forgeability and workability, and are particularly suitable as a magnetic material for electromagnetic devices requiring rectangular hysteresis loop.