Abstract: An aluminum alloy, an aluminum alloy wire, an aluminum alloy stranded wire, a covered electric wire, and a wire harness that are of high toughness and high electrical conductivity, and a method of manufacturing an aluminum alloy wire are provided. The aluminum alloy wire contains not less than 0.005% and not more than 2.2% by mass of Fe, and a remainder including Al and an impurity. It may further contain not less than 0.005% and not more than 1.0% by mass in total of at least one additive element selected from Mg, Si, Cu, Zn, Ni, Mn, Ag, Cr, and Zr. The Al alloy wire has an electrical conductivity of not less than 58% IACS and an elongation of not less than 10%. The Al alloy wire is manufactured through the successive steps of casting, rolling, wiredrawing, and softening treatment.

Abstract: An aluminum (Al) alloy wire, which is an extra fine wire having a wire diameter of 0.5 mm or less, contains, in mass %, Mg at 0.03% to 1.5%, Si at 0.02% to 2.0%, at least one element selected from Cu, Fe, Cr, Mn and Zr at a total of 0.1% to 1.0% and the balance being Al and impurities, and has an electrical conductivity of 40% IACS or more, a tensile strength of 150 MPa or more, and an elongation of 5% or more. By producing the extra fine wire from an Al alloy of a specific composition containing Zr, Mn and other specific elements, though the extra fine wire is extra fine, it has a fine structure with a maximum grain size of 50 ?m or less and is superior in elongation.

Abstract: An aluminum (Al) alloy wire, which is an extra fine wire having a wire diameter of 0.5 mm or less, contains, in mass %, Mg at 0.03% to 1.5%, Si at 0.02% to 2.0%, at least one element selected from Cu, Fe, Cr, Mn and Zr at a total of 0.1% to 1.0% and the balance being Al and impurities, and has an electrical conductivity of 40% IACS or more, a tensile strength of 150 MPa or more, and an elongation of 5% or more. By producing the extra fine wire from an Al alloy of a specific composition containing Zr, Mn and other specific elements, though the extra fine wire is extra fine, it has a fine structure with a maximum grain size of 50 ?m or less and is superior in elongation.

Abstract: A magnesium-based composite member is provided with a through hole through which a fastening member for attachment to a fixing target is to be inserted. A substrate is provided with a substrate hole through which the fastening member is to be inserted, and made of a composite material which is a composite of SiC and a matrix metal which is any of magnesium and a magnesium alloy. A receiving portion is attached to the substrate and made of a metal material different from the matrix metal. The receiving portion is provided with a receiving portion hole through which the fastening member is to be inserted, and at least a part of an inner circumferential surface of the through hole is formed from an inner circumferential surface of the receiving portion hole.

Abstract: An aluminum alloy wire having excellent bending characteristics, strength, and electrically conductive characteristics, an aluminum alloy stranded wire, a covered electric wire including the above-described alloy wire or stranded wire, and a wire harness including the covered electric wire are provided. The aluminum alloy wire contains not less than 0.1% and not more than 1.5% by mass of Mg, not less than 0.03% and not more than 2.0% of Si, not less than 0.05% and not more than 0.5% of Cu, and a remainder including Al and an impurity, satisfies 0.8?Mg/Si ratio by mass ?3.5, has an electrical conductivity from 35% IACS to 58% IACS, a tensile strength from 150 MPa to 400 MPa, and an elongation not less than 2%. The aluminum alloy wire is manufactured through the steps of casting?rolling?wiredrawing?solution heat treatment.

Abstract: Provided are an aluminum-based terminal fitting in which a Sn layer has high peel resistance, and a terminal connecting structure of an electric wire provided with the terminal fitting. The aluminum-based terminal fitting includes a wire barrel portion (110) for connection to a conductor (210) constituted by aluminum or an aluminum alloy and provided in an electric wire (200), and a fitting portion (female fitting portion (130) or male fitting portion (140)) provided to extend from the wire barrel portion (110) and electrically connected to a separate terminal fitting. A Sn layer formed directly on a base material constituting the terminal fitting is provided on the contact region in the fitting portion.

Abstract: An aluminum alloy wire having excellent bending characteristics, strength, and electrically conductive characteristics, an aluminum alloy stranded wire, a covered electric wire including the above-described alloy wire or stranded wire, and a wire harness including the covered electric wire are provided. The aluminum alloy wire contains not less than 0.1% and not more than 1.5% by mass of Mg, not less than 0.03% and not more than 2.0% of Si, not less than 0.05% and not more than 0.5% of Cu, and a remainder including Al and an impurity, satisfies 0.8?Mg/Si ratio by mass ?3.5, has an electrical conductivity from 35% IACS to 58% IACS, a tensile strength from 150 MPa to 400 MPa, and an elongation not less than 2%. The aluminum alloy wire is manufactured through the steps of casting?rolling?wiredrawing?solution heat treatment.

Abstract: An object is to obtain a stable electric connection resistance under a mild crimping condition. The present invention is a terminal connector 12 that includes a crimp portion 30 to be crimped to an electric wire. The crimp portion 30 includes a base material, an aluminum layer or an aluminum alloy layer a surface on the base material, and a hard layer on a surface of the aluminum layer or the aluminum alloy layer. The hard layer is harder than the base material. The present invention may be an electric wire with a terminal connector 10 that includes the above terminal connector 12 and a covered electric wire 40 that includes a core wire 42 made of aluminum or aluminum alloy. The crimp portion 30 of the terminal connector 12 is crimped to the core wire 42.

Abstract: An aluminum alloy, an aluminum alloy wire, an aluminum alloy stranded wire, a covered electric wire, and a wire harness that are of high toughness and high electrical conductivity, and a method of manufacturing an aluminum alloy wire are provided. The aluminum alloy wire contains not less than 0.005% and not more than 2.2% by mass of Fe, and a remainder including Al and an impurity. It may further contain not less than 0.005% and not more than 1.0% by mass in total of at least one additive element selected from Mg, Si, Cu, Zn, Ni, Mn, Ag, Cr, and Zr. The Al alloy wire has an electrical conductivity of not less than 58% IACS and an elongation of not less than 10%. The Al alloy wire is manufactured through the successive steps of casting, rolling, wiredrawing, and softening treatment.

Abstract: An aluminum alloy, an aluminum alloy wire, an aluminum alloy stranded wire, a covered electric wire, and a wire harness that are of high toughness and high electrical conductivity, and a method of manufacturing an aluminum alloy wire are provided. The aluminum alloy wire contains not less than 0.005% and not more than 2.2% by mass of Fe, and a remainder including Al and an impurity. It may further contain not less than 0.005% and not more than 1.0% by mass in total of at least one additive element selected from Mg, Si, Cu, Zn, Ni, Mn, Ag, Cr, and Zr. The Al alloy wire has an electrical conductivity of not less than 58% IACS and an elongation of not less than 10%. The Al alloy wire is manufactured through the successive steps of casting, rolling, wiredrawing, and softening treatment.

Abstract: A composite member suitable for a heat radiation member of a semiconductor element and a method of manufacturing the same are provided. This composite member is a composite of magnesium or a magnesium alloy and SiC, and it has porosity lower than 3%. This composite member can be manufactured by forming an oxide film on a surface of raw material SiC, arranging coated SiC having the oxide film formed in a cast, and infiltrating this coated SiC aggregate with a molten metal (magnesium or the magnesium alloy). The porosity of the composite member can be lowered by improving wettability between SiC and the molten metal by forming the oxide film. According to this manufacturing method, a composite member having excellent thermal characteristics such as a coefficient of thermal expansion not lower than 4 ppm/K and not higher than 10 ppm/K and thermal conductivity not lower than 180 W/m·K can be manufactured.

Abstract: A composite member suitable for a heat radiation member of a semiconductor element and a method of manufacturing the same are provided. This composite member is a composite of magnesium or a magnesium alloy and SiC, and it has porosity lower than 3%. This composite member can be manufactured by forming an oxide film on a surface of raw material SiC, arranging coated SiC having the oxide film formed in a cast, and infiltrating this coated SiC aggregate with a molten metal (magnesium or the magnesium alloy). The porosity of the composite member can be lowered by improving wettability between SiC and the molten metal by forming the oxide film. According to this manufacturing method, a composite member having excellent thermal characteristics such as a coefficient of thermal expansion not lower than 4 ppm/K and not higher than 10 ppm/K and thermal conductivity not lower than 180 W/m·K can be manufactured.

Abstract: An oxide film is formed on the surface of a sample made from a metal material by holding the above-described sample at a temperature of 800° C. or higher and 1,100° C. or lower in an oxygen-containing atmosphere, and the sample provided with the oxide film is immersed in a corrosive solution containing an acid and NaCl for a predetermined time. After immersion, the corrosion state (degree of denseness of oxide film, cracking state, and the like) of the sample is evaluated. The corrosion resistance of the sample can be evaluated appropriately and conveniently in a short period of time by causing accelerated corrosion in an environment simulating the actual environment of an internal combustion engine.

Abstract: An electrode material contains, on a mass percent basis, Al: 0.005% to 0.2%, Si: 0.2% to 1.6%, Cr: 0.05% to 1.0%, Ti: 0.05% to 0.5%, and Y: 0.2% to 1.0%. The remainder are Ni and inevitable impurities. The Si/Cr mass ratio is 1 or more. Because of the inclusion of specific amounts of Al, Si, Cr, and Y and the Si content higher than the Al content, the electrode material has an oxidation inhibiting effect. The inclusion of the specific amount of Ti can reduce the occurrence of expansion and cracking of the oxide film. Because of the inclusion of the specific amount of Y, the oxide film can maintain the microstructure even at high temperatures and have high resistance to high-temperature oxidation. Having a Si/Cr ratio of 1 or more, the oxide film has improved corrosion resistance and is resistant to corrosion by corrosive liquids.

Abstract: Provided are an aluminum-based terminal fitting in which a Sn layer has high peel resistance, and a terminal connecting structure of an electric wire provided with the terminal fitting. The aluminum-based terminal fitting includes a wire barrel portion (110) for connection to a conductor (210) constituted by aluminum or an aluminum alloy and provided in an electric wire (200), and a fitting portion (female fitting portion (130) or male fitting portion (140)) provided to extend from the wire barrel portion (110) and electrically connected to a separate terminal fitting. A Sn layer formed directly on a base material constituting the terminal fitting is provided on the contact region in the fitting portion.

Abstract: An object is to obtain a stable electric connection resistance under a mild crimping condition. The present invention is a terminal connector 12 that includes a crimp portion 30 to be crimped to an electric wire. The crimp portion 30 includes a base material, an aluminum layer or an aluminum alloy layer a surface on the base material, and a hard layer on a surface of the aluminum layer or the aluminum alloy layer. The hard layer is harder than the base material. The present invention may be an electric wire with a terminal connector 10 that includes the above terminal connector 12 and a covered electric wire 40 that includes a core wire 42 made of aluminum or aluminum alloy. The crimp portion 30 of the terminal connector 12 is crimped to the core wire 42.

Abstract: An aluminum alloy wire, an aluminum alloy stranded wire, a covered electric wire, and a wire harness that are of high toughness and high electrical conductivity, and a method of manufacturing an aluminum alloy wire. The aluminum alloy wire contains not less than 0.2% and not more than 1.0% by mass of Mg, not less than 0.1% and not more than 1.0% by mass of Si, not less than 0.1% and not more than 0.5% by mass of Cu, and a remainder including Al and an impurity, and satisfies 0.8 Mg/Si?2.7 by mass ratio. The Al alloy wire is manufactured through the successive steps of casting, rolling, wiredrawing, and softening treatment.

Abstract: An aluminum (Al) alloy wire, which is an extra fine wire having a wire diameter of 0.5 mm or less, contains, in mass %, Mg at 0.03% to 1.5%, Si at 0.02% to 2.0%, at least one element selected from Cu, Fe, Cr, Mn and Zr at a total of 0.1% to 1.0% and the balance being Al and impurities, and has an electrical conductivity of 40% IACS or more, a tensile strength of 150 MPa or more, and an elongation of 5% or more. By producing the extra fine wire from an Al alloy of a specific composition containing Zr, Mn and other specific elements, though the extra fine wire is extra fine, it has a fine structure with a maximum grain size of 50 ?m or less and is superior in elongation.

Abstract: An aluminum alloy, an aluminum alloy wire, an aluminum alloy stranded wire, a covered electric wire, and a wire harness that are of high toughness and high electrical conductivity, and a method of manufacturing an aluminum alloy wire are provided. The aluminum alloy wire contains not less than 0.005% and not more than 2.2% by mass of Fe, and a remainder including Al and an impurity. It may further contain not less than 0.005% and not more than 1.0% by mass in total of at least one additive element selected from Mg, Si, Cu, Zn, Ni, Mn, Ag, Cr, and Zr. The Al alloy wire has an electrical conductivity of not less than 58% IACS and an elongation of not less than 10%. The Al alloy wire is manufactured through the successive steps of casting, rolling, wiredrawing, and softening treatment.

Abstract: A magnesium-based composite member is provided with a through hole through which a fastening member for attachment to a fixing target is to be inserted. A substrate is provided with a substrate hole through which the fastening member is to be inserted, and made of a composite material which is a composite of SiC and a matrix metal which is any of magnesium and a magnesium alloy. A receiving portion is attached to the substrate and made of a metal material different from the matrix metal. The receiving portion is provided with a receiving portion hole through which the fastening member is to be inserted, and at least a part of an inner circumferential surface of the through hole is formed from an inner circumferential surface of the receiving portion hole.