Other

Japan Science and Technology Agency

Tanaka Kikinzoku Kogyo K.k.

Daido Tokushuko Kabushiki Kaisha

Tohoku Techno Arch Co., Ltd.

Tohoku University

Terumo Kabushiki Kaisha

National Institute of Advanced Industrial Science and Technology

Hitachi, Ltd.

Toyota Jidosha Kabushiki Kaisha

Honda Motor Co., Ltd.

The Furukawa Electric Co., Ltd.

Nippon Seisen Co., Ltd.

Mitsubishi Hitachi Power Systems, Ltd.

Dowa Metaltech Co., Ltd.

Kiyohito Ishida

Jun Sato

Yutaka Sato

Ryosuke Kainuma

Toshihiro Omori

Katsunari Oikawa

Yuji Sutou

Ikuo Ohnuma

Kiyoshi Yamauchi

Koichi Sakairi

Kunihiro Tanaka

Yuuki Tanaka

Takashi Ebata

Tetsuya Shimizu

Tatsuya Nakazawa

Hiraku Murayama

Toshiharu Noda

Michio Okabe

Sadayuki Nakamura

Yoshikazu Ishii

Shozo Abeyama

Shinya Imano

Masahiro Ohta

Toru Sukigara

Satoshi Hirano

Shigeki Ueta

Yasushi Yamada

Seunghwan Park

Sumio Kise

Toyonobu Tanaka

Koichi Ishikawa

Yuji Yagi

Takashi Atsumi

Satoshi Teshigawara

Hiroaki Nishida

Kozo Ozaki

Mototsugu Osaki

Misato Fujii

Yoshikazu Takaku

Muneki Nakamura

Tatsuo Fujiwara

Katunari Oikawa

Ryouichi Souba

Toshiyuki Murakami

Koji Ishikawa

Takayuki Shimizu

Kazuto Terai

Tetsuo Shiraga

Kenji Nakamizo

Yukinori Matsuda

Tomio Kono

Hiroyuki Kokawa

Ikuo Nakagawa

Tomoki Shiota

Seiji Kurata

Shingo Kawata

Masakuni Fujikura

Yuji Sutoh

Takehito Hagisawa

Naohiro Abe

Takayuki Akizuki

Keisuke Ando

Misato Nakano

Mikio Shirai

Akira Ogawa

Takeshi Kanomata

Toshihiro Ohmori

Takayuki Inoguchi

Toshimitsu Fujii

Masahito Hatori

Masahiro Hayashi

Michio Miura

Yozo Tsugane

Takashi Kimura

Takashi Mizushima

The present invention relates to a Ni-based heat-resistant alloy including Ir: 5.0 mass % or more and 50.0 mass % or less, Al: 1.0 mass % or more and 8.0 mass % or less, W: 5.0 mass % or more and 25.0 mass % or less, and balance Ni, having an L1-structured &#x3b3;' phase present in the matrix, and including at least one of Zr: 0.01 mass % or more and 3.0 mass % or less and Hf: 0.01 mass % or more and 3.0 mass % or less. This Ni-based heat-resistant alloy has improved toughness over a conventional Ni-based heat-resistant alloy based on a Ni&#x2014;Ir&#x2014;Al&#x2014;W-based alloy, and is also excellent in ambient-temperature strength.

Ni-based heat-resistant alloy

The present invention relates to a Ni-based heat-resistant alloy including Ir: 5.0 mass % or more and 50.0 mass % or less, Al: 1.0 mass % or more and 8.0 mass % or less, W: 5.0 mass % or more and 25.0 mass % or less, and balance Ni, having an L1-structured &#x3b3;' phase present in the matrix, and including at least one of Ru: 0.8 mass % or more and 5.0 mass % or less and Re: 0.8 mass % or more and 5.0 mass % or less. This Ni-based heat-resistant alloy has improved toughness over a conventional Ni-based heat-resistant alloy based on a Ni&#x2014;Ir&#x2014;Al&#x2014;W-based alloy, and is also excellent in ambient-temperature strength.

A Cu&#x2014;Al&#x2014;Mn-based alloy having superelastic characteristics and having a recrystallized texture substantially formed of a &#x3b2; single phase, in which 70% or more of crystal grains is within a range of 0&#xb0; to 50&#xb0; in a deviation angle from &#x3c;001&#x3e; orientation of a crystalline orientation measured in a working direction by electron back-scatter diffraction patterning.

Cu&#x2014;Al&#x2014;Mn-based alloy exhibiting stable superelasticity and method of producing the same

The present invention relates to a NiIr-base heat-resistant alloy which includes a Ni&#x2014;Ir&#x2014;Al&#x2014;W-base alloy which contains Ir: 5.0 to 50.0 mass %, Al: 1.0 to 8.0 mass %, W: 5.0 to 20.0 mass %, and the balance is Ni, and a &#x3b3;' phase having an L1structure precipitating and dispersing in a matrix as an essential strengthening phase, and a ratio (Y/X) of a peak intensity (Y) of (201) plane of the IrW phase observed in the range of 2&#x3b8;=48&#xb0; to 50&#xb0; to a peak intensity (X) of (111) plane of the &#x3b3;&#x2032; phase observed in the range of 2&#x3b8;=43&#xb0; to 45&#xb0; in X-ray diffraction analysis is 0.5 or less. The alloy exhibits good high-temperature property stably.

Ni-Ir-based heat-resistant alloy and process for producing same

The present invention is a heat-resistant Ni-base alloy including a Ni&#x2014;Ir&#x2014;Al&#x2014;W alloy having essential additive elements of Ir, Al, and W added to Ni, wherein the heat-resistant Ni-base alloy includes Ir: 5.0 to 50.0 mass %, Al: 1.0 to 8.0 mass %, and W: 5.0 to 20.0 mass %, the balance being Ni, and a &#x3b3;' phase having an L1structure disperses in a matrix as an essential strengthening phase. The heat-resistant material including the Ni-base alloy may contain one or more additive elements selected from B: 0.001 to 0.1 mass %, Co: 5.0 to 20.0 mass %, Cr: 1.0 to 25.0 mass %, Ta: 1.0 to 10.0 mass %, Nb: 1.0 to 5.0 mass %, Ti: 1.0 to 5.0 mass %, V: 1.0 to 5.0 mass %, and Mo: 1.0 to 5.0 mass %, or 0.001 to 0.5 mass % of C.

Heat-resistant Ni-base alloy and method of producing the same

A hydrogen gas generating member includes a metal alloy having dispersed aluminum. The metal alloy includes an Al&#x2014;X alloy, where X is Sn: 10.1 to 99.5% by mass, Bi: 30.1 to 99.5% by mass, In: 10.1 to 99.5% by mass, Sn +Bi: 20.1 to 99.5% by mass, Sn +In: to 10 to 99.5% by mass, Bi+In: 20.1 to 99.5% by mass, or Sn+Bi+In: 20 to 99.5% by mass. Hydrogen gas is generated by bringing the hydrogen gas generating member into contact with water.

Hydrogen gas generating member and hydrogen gas producing method therefor

The present invention is a heat-resistant material comprising a Rh-based alloy, wherein the Rh-based alloy is a high heat-resistant and high strength alloy comprising a Rh-based alloy where Al and W as essential additive elements are added to Rh (0.2 to 15.0 mass % of Al, 15.0 to 45.0 mass % of W and Rh as the remainder), and a &#x3b3;' phase (Rh(Al, W)) having an L1structure is dispersed as a strengthening phase in a matrix. The Rh-based alloy of the present invention can be further improved in workability and high temperature oxidation characteristics by optionally adding B, C, Mg, Ca, Y, La or misch metals, Ni, Co, Cr, Fe, Mo, Ti, Nb, Ta, V, Zr, Hf, Ir, Re, Pd, Pt or Ru as an additive element. The Rh-based alloy of the present invention is a heat-resistant material having excellent high-temperature-resistant characteristics and a good balance of factors such as weight.

Highly heat-resistant and high-strength Rh-based alloy and method for manufacturing the same

A copper alloy wire is a filamentary material of a copper alloy containing, in percent by mass, Ni: 3.0 to 15.0%, Al: 0.5 to 5.0%, and Si: 0.1 to 3.0%, with the remainder being composed of Cu and incidental impurities, which is provided with the tensile strength (&#x3c3;B) of 900 to 1300 MPa and electrical conductivity of 10 to 22% IACS and, in addition to that property, satisfies an intensity ratio of A:B:C of 1.0:1.2 to 6.0:2.2 to 8.0 when A, B and C represent diffraction intensities of Cu (111), Cu (200) and Cu (220), respectively, according to an X-ray diffraction method in a predetermined cross section, and which is used for an operation or contact spring by incorporating in mobile phones and various small electronic instruments by formulating into a copper alloy spring used, particularly, for an electrical conductive spring.

Copper alloy wire and copper alloy spring

A process for producing a Co-base alloy which has a basic composition including, in terms of mass proportion, 0.1%-10% Al, 3.0-45% W, and Co as the remainder and has an intermetallic compound of the L1type [Co(Al,W)] dispersed and precipitated therein. Part of the Co may be replaced with Ni, Ir, Fe, Cr, Re, or Ru, while part of the Al and W may be replaced with Ni, Ti, Nb, Zr, V, Ta or Hf. The intermetallic compound [Co(Al, W)] has a high melting point, and this compound and the matrix are mismatched little with respect to lattice constant. Thus, the cobalt-base alloy can have high-temperature strength equal to that of nickel-base alloys and excellent structure stability.

Cobalt-base alloy with high heat resistance and high strength and process for producing the same

An Fe-based shape memory alloy comprising 25-42 atomic % of Mn, 12-18 atomic % of Al, and 5-12 atomic % of Ni, the balance being Fe and inevitable impurities, and an Fe-based shape memory alloy comprising 25-42 atomic % of Mn, 12-18 atomic % of Al, and 5-12 atomic % of Ni, as well as 15 atomic % or less in total of at least one selected from the group consisting of 0.1-5 atomic % of Si, 0.1-5 atomic % of Ti, 0.1-5 atomic % of V, 0.1-5 atomic % of Cr, 0.1-5 atomic % of Co, 0.1-5 atomic % of Cu, 0.1-5 atomic % of Mo, 0.1-5 atomic % of W, 0.001-1 atomic % of B and 0.001-1 atomic % of C, the balance being Fe and inevitable impurities.

Fe-based shape memory alloy and its production method

A guide wire includes a distal core member made of a ferrous alloy which has shape memory properties and superelasticity. The ferrous alloy preferably includes substantially two phases, and has a difference of 100&#xb0; C. or less between an Af point and an Ms point in a thermal hysteresis of martensitic transformation and reverse transformation. The guide wire may include a proximal core member made of an iron-containing alloy and having a higher modulus of elasticity than the distal core member. The two core members may be joined together by welding to form a core of the guide wire.

Guide wire and stent

A Co-base alloy which has a basic composition including, in terms of mass proportion, 0.1%-10% Al, 3.0-45% W, and Co as the remainder and has an intermetallic compound of the Lltype [Co(Al,W)] dispersed and precipitated therein. Part of the Co may be replaced with Ni, Ir, Fe, Cr, Re, or Ru, while part of the Al and W may be replaced with Ni, Ti, Nb, Zr, V, Ta or Hf. The intermetallic compound [Co(Al, W)] has a high melting point, and this compound and the matrix are mismatched little with respect to lattice constant. Thus, the cobalt-base alloy can have high-temperature strength equal to that of nickel-base alloys and excellent structure stability.

A Co-based alloy being useful as a spiral spring, common spring, wire, cable guide, steel belt, build-up material, guide wire, stent, catheter, etc. There is provided a Co-based alloy having a composition of Co&#x2014;Al binary system containing 3-13% Al loaded with at least one workability enhancing element selected from among 001 to 50% Ni, 0.01 to 40% Fe and 0.01 to 30% Mn and having a lamellar structure wherein f.c.c. structure &#x3b1;-phase and &#x3b2;(B2)-phase are repeated in layers. The lamellar structure is so regulated that the occupancy ratio of the whole structure is 30 vol. % or above and the layer spacing is 100 &#x3bc;m or less. The Co-based alloy may contain at least one optional component selected from among Ga, Cr, V, Ti, Mo, Nb, Zr, W, Ta, Hf, Si, Rh, Pd, Ir, Pt, Au, B, C and P may be added in a total amount of 0.01 to 60%.

High-strength co-based alloy with enhanced workability and process for producing the same

It is an object to provide a friction stir tool excellent in productivity, high temperature strength, and wear resistance at high temperatures. The friction stir tool is formed of a Co-based alloy comprising crystal grains containing a &#x3b3;' precipitate phase dispersed and precipitated therein, and a crystal grain boundary region and a precipitate phase between adjacent crystal grains, in which the precipitate phase is at least one phase selected from a &#x3bc; phase, a Laves phase and a carbide phase.

Friction stir tool

A zinc based solder materialof the present invention is prepared by providing on the surface of a zinc based material, from which an oxide filmhas been removed or at which an oxide filmdoes not exist, with a coating layercontaining primarily a metal whose oxide is more easily reducible than the oxide film. In a joined body and a power semiconductor module of the present invention, the zinc based solder materialis used in the joining portion, and after joining, the coating layerdoes not exist.

Solder material, method for manufacturing the same, joined body, method for manufacturing the same, power semiconductor module, and method for manufacturing the same

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Sendai, Japan

Kiyohito Ishida