Sumitomo Electric Industries, Limited

Toyota Jidosha Kabushiki Kaisha

Osamu Mizuno

Nozomu Kawabe

Takayasu Sugihara

Masahiro Yamakawa

Satoshi Aoyama

Koji Mori

Nobuyuki Okuda

Ryuichi Inoue

Masayuki Nishizawa

Kohji Inokuchi

Naoki Ito

Nobuyuki Mori

Kentaro Yoshida

Hiromichi Sato

Yukihiro Oishi

Takashi Uemura

Tomohiko Ihara

Masatada Numano

Jin-Joo Park

Mitsutaka Tsubokura

Takahiko Kitamura

Ryoko Kanda

Motoyoshi Tanaka

Katsuyuki Aoki

Taisuke Tsubota

Yugo Kubo

A composite member includes a metal sheet having a bent portion formed by bending, and a resin member joined to at least a part of the bent portion. The metal sheet includes an opening provided on an inner side of the bent portion, and a tapered recess that tapers off from an outer side of the bent portion toward the opening. The resin member includes an inner resin part filled in the recess, and an exposed resin part provided to be continuous with the inner resin part and to extend to an inner surface of the bent portion through an edge portion of the opening.

Composite member and composite-member manufacturing method

There are provided a magnesium alloy coil stock having good flatness and a method for producing the magnesium alloy coil stock, and a magnesium alloy structural member that uses the coil stock and a method for producing the magnesium alloy structural member. The coil stock is obtained by coiling a sheet composed of a magnesium alloy in a cylindrical shape, and the internal diameter of the coil stock is 1000 mm or less. The coil stock can be produced by rolling a cast material obtained by subjecting a magnesium alloy to continuous casting, subjecting the rolled sheet to warm leveling, and coiling the worked sheet in a cylindrical shape while the temperature just before coiling is decreased to 100&#xb0; C. or less.

Magnesium alloy coil stock

A magnesium alloy sheet is made of a magnesium alloy containing Al. Particles of an intermetallic compound containing at least one of Al and Mg are present in the sheet in a dispersed state. The sheet includes an oxide film which extends substantially over the surface of the sheet and which has a uniform thickness. The average size of the particles of the intermetallic compound is 0.5 &#x3bc;m or less. The percentage of the total area of the particles is 11% or less. Therefore, the magnesium alloy sheet is excellent corrosion resistance. A magnesium alloy structural member is provided.

Magnesium alloy sheet

A magnesium alloy structural member having excellent corrosion resistance is provided. The magnesium alloy structural member includes a magnesium alloy substrate that contains more than 7.5% by mass of Al and an anticorrosive layer formed on a surface of the substrate by chemical conversion treatment. The substrate contains a precipitate, typically, particles dispersed therein. The particles are made of an intermetallic compound containing at least one of Al and Mg and have an average particle size of 0.05 &#x3bc;m or more and 1 &#x3bc;m or less. The total area of the particles accounts for 1% by area or more and 20% by area or less. The anticorrosive layer includes a lower sublayer and a surface sublayer on the substrate in this order. The surface sublayer is denser than the lower sublayer. The substrate of the magnesium alloy structural member has high corrosion resistance because of a high Al content. The magnesium alloy structural member has excellent corrosion resistance because of the dense sublayer on the front side of the anticorrosive layer, which prevents a corrosive liquid from reaching the substrate. The porous lower sublayer can reduce the tendency of the anticorrosive layer to detach from the substrate, for example, upon impact and allows the magnesium alloy structural member to retain high corrosion resistance.

Magnesium alloy structural member

A magnesium alloy material having excellent impact resistance is provided. The magnesium alloy material is composed of a magnesium alloy that contains more than 7.5% by mass of Al and has a Charpy impact value of 30 J/cmor more. Typically, the magnesium alloy material has an elongation of 10% or more at a tension speed of 10 m/s in a high-speed tensile test. The magnesium alloy is composed of a precipitate, typically made of an intermetallic compound containing at least one of Al and Mg, and contains particles having an average particle size of 0.05 &#x3bc;M or more and 1 &#x3bc;m or less dispersed therein. The total area of the particles accounts for 1% by area or more and 20% by area or less. The magnesium alloy material containing fine precipitate particles dispersed therein has high impact absorption capacity through dispersion strengthening and has excellent impact resistance.

Magnesium alloy material

A hydrogen-permeable structure is disclosed, which includes a hydrogen-permeable base in which a fluctuation range of a d value by X-ray analysis measurement is at most 0.05% in a region within 2 &#x3bc;m deep from a surface, and an oxide proton conductive film formed on a surface thereof. The disclosure also relates to a method of manufacturing the hydrogen-permeable structure and a fuel cell using the hydrogen-permeable structure.

Hydrogen-permeable structure, method of manufacturing thereof and fuel cell using the same

A hydrogen permeable membrane () for selectively allowing hydrogen to permeate therethrough includes a metal base layer () containing vanadium (V), a metal coating layer () containing palladium (Pd), and an intermediate layer () that is formed between the metal base layer () and the metal coating layer () and made of a metal having a higher melting point than the metal base layer () and the metal coating layer () and possessing hydrogen permeability.

Hydrogen permeable membrane, fuel cell and hydrogen extracting apparatus equipped with the hydrogen permeable membrane, and method of manufacturing the hydrogen permeable membrane

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Itami, Japan

Osamu Mizuno