Kabushiki Kaisha Toyota Chuo Kenkyusho

Isamu Ueda

Hajime Kato

Hiroyuki Mori

Yasushi Iwata

Hiroshi Kawahara

Kazuaki Nishino

Hiroshi Hohjo

Yoshihiko Sugimoto

Toshio Horie

Hiroaki Iwahori

Hajime Ikuno

Nobuaki Suzuki

Ken-ichi Suzuki

Gaku Kitahara

Hiroyuki Kawabata

Akira Yamada

Shoji Hotta

There is provided an electron conductive and corrosion-resistant materialcontaining titanium (Ti), boron (B) and nitrogen (N) in an atomic ratio satisfying 0.05&#x2266;[Ti]&#x2266;0.40, 0.20&#x2266;[B]&#x2266;0.40, and 0.35&#x2266;[N]&#x2266;0.55 (provided that [Ti]+[B]+[N]=1). Further, there is provided a method of manufacturing an electron conductive and corrosion-resistant material, wherein boron nitride powder adheres to the surface of a substrateof which at least the surface is made of titanium or a titanium alloy, and is then heated. Furthermore, there is provided a method of manufacturing an electron conductive and corrosion-resistant material, wherein the surface of a substrateof which at least the surface is made of titanium or a titanium alloy is borided and then heated. In addition, there is provided a method of manufacturing an electron conductive and corrosion-resistant material, wherein a TiBlayer formed of TiBparticles is formed by spraying TiBpowder onto a metal substrateand then nitriding the TiBlayer.

Metal separator for fuel cell and method for producing the same

Aluminum alloys and castings are provided that have excellent practical fatigue resistances. The alloy includes, based upon 100 mass %, 4-12 mass % of Si, less than 0.2 mass % of Cu, 0.1-0.5 mass % of Mg, 0.2-3.0 mass % of Ni, 0.1-0.7 mass % of Fe, 0.15-0.3 mass % of Ti, and the balance of aluminum (Al) and impurities. The alloy has a metallographic structure, which includes a matrix phase primarily of &#x3b1;-Al and a skeleton phase crystallizing around the matrix phase in a network shape. The matrix phase is strengthened by precipitates containing Mg. Because of the strengthened matrix phase, and the skeleton phase that surrounds it, the castings have high strength, high fatigue strength, and high thermo-mechanical fatigue resistance.

Aluminum alloys for casting and aluminum alloy castings

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Kasugai, Japan

Isamu Ueda