Title:
IRON-BASED ALLOY AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2008/023734
Kind Code:
A1
Abstract:
A ferromagnetic iron-based alloy which can have a large reversible strain upon application/removal
of a magnetic-field gradient.The iron-based alloy contains one or more of 0.01-11%
Al, 0.01-7% Si, and 0.01-26% Cr or contains one or more of 0.01-11% Al, 0.01-7%
Si, 0.01-26% Cr, and 35-50% Ni. It has twin crystals incorporated therein through
working at a rate of work of 10% or higher, and has an areal proportion of twin boundaries
to crystal-grain boundaries of 0.2 or higher. According to need, the alloy may
further contain one or more of 0.01-5% Ti, 0.01-10% V, 0.01-5% Mn, 0.01-30% Co,
0.01-10% Ni, 0.01-5% Cu, 0.01-5% Zr, 0.01-5% Nb, 0.01-5% Mo, 0.01-5% Hf, 0.01-5%
Ta, 0.01-5% W, 0.001-1% B, 0.001-1% C, 0.001-1% P, and 0.001-1% S.
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Inventors:
ISHIDA, Kiyohito (5-20, Kamisugi 3-chome Aoba-k, Sendai-shi Miyagi 11, 9800011, JP)
石田 清仁 (〒11 宮城県仙台市青葉区上杉３－５－２０ Miyagi, 9800011, JP)
KAINUMA, Ryosuke (172-15, Aza-Sekine Tekurad, Natori-shi Miyagi 31, 9811231, JP)
貝沼 亮介 (〒31 宮城県名取市手倉田字堰根１７２－１５ Miyagi, 9811231, JP)
OIKAWA, Katsunari (3-4-503, Mikamine 1-choume Taihaku-k, Sendai-shi Miyagi 26, 9820826, JP)
及川 勝成 (〒26 宮城県仙台市太白区三神峯１－３－４－５０３ Miyagi, 9820826, JP)
石田 清仁 (〒11 宮城県仙台市青葉区上杉３－５－２０ Miyagi, 9800011, JP)
KAINUMA, Ryosuke (172-15, Aza-Sekine Tekurad, Natori-shi Miyagi 31, 9811231, JP)
貝沼 亮介 (〒31 宮城県名取市手倉田字堰根１７２－１５ Miyagi, 9811231, JP)
OIKAWA, Katsunari (3-4-503, Mikamine 1-choume Taihaku-k, Sendai-shi Miyagi 26, 9820826, JP)
及川 勝成 (〒26 宮城県仙台市太白区三神峯１－３－４－５０３ Miyagi, 9820826, JP)
Application Number:
JP2007/066284
Publication Date:
February 28, 2008
Filing Date:
August 22, 2007
Export Citation:
Assignee:
Japan Sceince and TechnologyAgency (4-1-8, Honcho Kawaguti-shi Saitama, 12, 3320012, JP)
独立行政法人 科学技術振興機構 (〒12 埼玉県川口市本町４丁目１番８号 Saitama, 3320012, JP)
ISHIDA, Kiyohito (5-20, Kamisugi 3-chome Aoba-k, Sendai-shi Miyagi 11, 9800011, JP)
石田 清仁 (〒11 宮城県仙台市青葉区上杉３－５－２０ Miyagi, 9800011, JP)
KAINUMA, Ryosuke (172-15, Aza-Sekine Tekurad, Natori-shi Miyagi 31, 9811231, JP)
貝沼 亮介 (〒31 宮城県名取市手倉田字堰根１７２－１５ Miyagi, 9811231, JP)
OIKAWA, Katsunari (3-4-503, Mikamine 1-choume Taihaku-k, Sendai-shi Miyagi 26, 9820826, JP)
独立行政法人 科学技術振興機構 (〒12 埼玉県川口市本町４丁目１番８号 Saitama, 3320012, JP)
ISHIDA, Kiyohito (5-20, Kamisugi 3-chome Aoba-k, Sendai-shi Miyagi 11, 9800011, JP)
石田 清仁 (〒11 宮城県仙台市青葉区上杉３－５－２０ Miyagi, 9800011, JP)
KAINUMA, Ryosuke (172-15, Aza-Sekine Tekurad, Natori-shi Miyagi 31, 9811231, JP)
貝沼 亮介 (〒31 宮城県名取市手倉田字堰根１７２－１５ Miyagi, 9811231, JP)
OIKAWA, Katsunari (3-4-503, Mikamine 1-choume Taihaku-k, Sendai-shi Miyagi 26, 9820826, JP)
International Classes:
C22C38/00; C21D8/12; C22C19/03; H01F1/147
Attorney, Agent or Firm:
OKUYAMA, Yuki (4F Yoyogi-Livin', 5-21-12 Sendagay, Shibuya-kuTokyo 51, 1510051, JP)
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