Alliage à mémoire de forme à base de fer et présentant d'excellentes caractériqus de mémoire de forme, de résistance à la corrosion et de résistance à l'oxydation aux températures élevées

Iron-based shape-memory alloy excellent in shape-memory property, corosion resistance and high-temperature oxidation resistance

Formgedächtnislegierung auf Eisenbasis mit vortrefflichen Formgedächtniseigenschaften und sehr guter Korrosionsbeständigkeit sowie Hochtemperaturoxydationsbeständigkeit

Abstract

An iron-based shape-memory alloy excellent in a shape-memory property, a corrosion resistance and a high-temperature oxidation resistance, consisting essentially of: chromium : from 5.0 to 20.0 wt.%, silicon : from 2.0 to 8.0 wt.%, at least one element selected from the group consisting of: manganese : from 0.1 to 14.8 wt.%, nickel : from 0.1 to 20.0 wt.%, cobalt : from 0.1 to 30.0 wt.%, copper : from 0.1 to 3.0 wt.%, and nitrogen : from 0.001 to 0.400 wt.%, where, Ni + 0.05 Mn + 0.4 Co + 0.06 Cu + 0.002 N ≧ 0.67 (Cr + 1.2 Si) - 3, and the balance being iron and incidental impurities.

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Patent Citations (3)

    Publication numberPublication dateAssigneeTitle
    EP-0176272-A1April 02, 1986Nippon Steel CorporationFormgedächtnislegierung und Verfahren zu ihrer Herstellung
    FR-1517767-AMarch 22, 1968Crucible Steel Co AmericaAciers inoxydables ferritiques
    FR-2237973-A1February 14, 1975Bethlehem Steel Corp

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Cited By (7)

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    CN-101370951-BOctober 27, 2010住友金属工业株式会社抗金属粉末化性能出色的金属材料
    DE-4029492-A1March 19, 1992Borchmann Michael, Juergen SchwichtenbergOrthopaedic teeth movement$ - uses alloy wire with shape memory characteristics and heated where bent
    DE-4118437-A1December 10, 1992I P Bardin Central Research In, Krupp Vdm AgHochsiliziumhaltiger, korrosionsbestaendiger, austenitischer stahl
    EP-0506488-A1September 30, 1992Mitsubishi Jukogyo Kabushiki Kaisha, Nkk CorporationIron-chromium-nickel-silicon shape memory alloys with excellent stress corrosion cracking resistance
    EP-0641868-A1March 08, 1995Sumitomo Metal Industries, Ltd., Sanyo Special Alloys, Ltd.Alliage ferreux non-magnétique à résistance à la corrosion et usinabilité excellentes
    US-5244513-ASeptember 14, 1993Mitsubishi Jukogyo Kabushiki Kaisha, Nkk CorporationFe-cr-ni-si shape memory alloys with excellent stress corrosion cracking resistance
    US-5501834-AMarch 26, 1996Sumitomo Metal Industries, Ltd., Sanyo Special Alloys, Ltd.Nonmagnetic ferrous alloy with excellent corrosion resistance and workability