Abstract: A constant-modulus alloy, which has a low saturation magnetic flux density to provide weakly magnetic properties, a high Young's modulus, a low temperature coefficient of Young's modulus, and high hardness, is provided. A hairspring, a mechanical driving apparatus and a watch and clock, in which the alloy is used, are provided. The alloy consists of Co, Ni, Cr, Mo. and Fe. The alloy is healed and cooled before being subjected to repeated wiredrawing and intermediate annealing, forming a wire with a fiber structure having a <111> fiber axis. The wire is then cold rolled into a sheet and heated to obtain optimal magnetic insensitivity and hardness.

Abstract: [Task] A constant-modulus alloy, which has a low saturation magnetic flux density to provide weakly magnetic properties, a high Young's modulus, a low temperature coefficient of Young's modulus, and high hardness, is provided. A hairspring, a mechanical driving apparatus and a watch and clock, in which the alloy is used, are provided. [Means for Solution] The alloy consists essentially of, by atomic weight ratio, 20 to 40% Co and 7 to 22% Ni, with the total of Co and Ni being 42.0 to 49.5%, 5 to 13% Cr and 1 to 6% Mo, with the total of Cr and Mo being 13.5 to 16.0%, and with the balance being essentially Fe (with the proviso that Fe is present in an amount of 37% or more) and inevitable impurities. The alloy is heated to a temperature of 1100 degrees C. or higher and lower than the melting point, followed by cooling. The alloy is subsequently subjected to repeated wiredrawing and intermediate annealing at 800 to 950 degrees C., thereby forming a wire at a working ratio of 90% or more.

Abstract: High temperature coefficient of resistance (TCR) appropriate for the sensor evices is attained by an alloy consisting, by atomic %, of from 5 to 65% of Fe, and from 0.01 to 20% in total of at least one auxiliary component selected from the group consisting of 20% or less of Ni, 20% or less of Co, 20% or less of Ag, 20% or less of Au, 20% or less of Pt, 10% or less of Rh, 10% or less of Ir, 10% or less of Os, 10% or less of Ru, 10% or less of Cr, 5% or less of V, 5% or less of Ti, 5% or less of Zr, 5% or less of Hf, 8% or less of Mo, 5% or less of Nb, 10% or less of W, 8% or less of Ta, 3% or less of Ga, 3% or less of Ge, 3% or less of In, 3% or less of Be, 5% or less of Sn, 3% or less of Sb, 5% or less of Cu, 5% or less of Al, 5% or less of Si, 2% or less of C, 2% or less of B, and 5% or less of a rare earth element, the balance being essentially Pd and minor amount of impurities, and said alloy having 4000.times.10.sup.-6.degree. C..sup.-1 or more of TCR in a temperature range of from 0.degree. to 200.

Abstract: The present invention relates to a wear-resistant high permeability alloy nsisting of Ni, Nb, C and Fe, a wear-resistant high permeability alloy consisting of Ni, Nb, C and Fe as main components and at least one element selected from the group consisting of Cr, Mo, Ge, Au, Co, V, W, Cu, Ta, Mn, Al, Si, Ti, Zr, Hf, Sn, Sb, Ga, In, Tl, Zn, Cd, rare earth element, platinum element, Be, Ag, Sr, B, P, N, O, S as a secondary component and a method of manufacturing the same and a magnetic recording and reproducing head, and an object of the invention is to obtain an excellent wear-resistant magnetic alloy having easy forging processability, a large effective permeability, a saturated flux density of more than 4000G, and a recrystallization texture of {110}<112>+{311}<112>+{111}<112>, and a wear-resistant high permeability alloy consisting by weight of Ni 60-90%, Nb 0.5-14%, C 0.0003-0.

Abstract: The present invention provides a method for manufacturing a wear resistant igh permeability alloy consisting by weight of 60-90% Ni, 0.5-14% Nb, 0.0003-0.3% N and O in total (excluding 0% of N or O), and a remainder of Fe. The alloy has more than 3000 of effective permeability at 1 KHz, more than 4000 G of a saturated flux density and a recrystallization texture of {110}<112>+{311}<112>.

Abstract: The present invention provides a wear resistant high permeability magnetic lloy Ni, Nb, N, O and Fe as main components. The alloy may include secondary components of at least one element selected from the group consisting of Cr, Mo, Ge, Au, Co, V, W, Cu, Ta, Mn, Al, Si, Ti, Zr, Hf, Sn, Sb, Ga, In, Tl, Zn, Cd, rare earth element, platinum element, Be, Ag, Sr, Ba, B, P, C and S. The magnetic alloy has good wear resistance having easy forgeability, a large effective permeability, more than 4000 G of a saturated flux density and a recrystallization texture of {110}<112>+{311}<112>.

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: 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 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: 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: 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.

Abstract: A heat treated, wear-resistant high-permeability alloy consisting of Si, at least one element selected from Y and La series elements and Fe, and a heat treated, wear-resistant high-permeability alloy consisting of Si, Al, at least one element selected from Y and La series elements and Fe as main ingredients and containing at least one element selected from the group consisting of V, Nb, Ta, Cr, Mo, W, Cu, Ge, Ti, Ni, Co, Mn, Zr, Sn, Sb, Be and Pb as subingredients, have an initial permeability of more than 1,000, a maximum permeability of more than 3,000, a hardness of more than 490 (Hv) and an average grain size of smaller than 2 mm, and are particularly suitable as a magnetic material for magnetic heads in magnetic recording and reproducing systems.

Abstract: A rectangular hysteresis magnetic alloy consisting of 0.5-10 wt. % of Nb the balance of Fe and a rectangular hysteresis magnetic alloy consisting of 0.5-10 wt. % of Nb, 0.01-60 wt. % in total amount of at least one element selected from the group consisting of 0-10% of V, 0-25% of Ta, 0-25% of Cr, 0-20% of Mo, 0-10% of W, 0-30% of Ni, 0-20% of Cu, 0-45% of Co, 0-5% of Ti, 0-5% of Zr, 0-5% of Si, 0-5% 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 oersteds, excellent forgeability and workability and are particularly suitable as a magnetic material for electromagnetic devices requiring rectangular hysteresis loop.