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Iron-based alloy having shape-memory property and superelasticity and method for manufacture thereof

外国特許コード F110004534
整理番号 A282-11WO
掲載日 2011年7月19日
出願国 中華人民共和国
出願番号 200680041479
公報番号 101305109
公報番号 101305109
出願日 平成18年11月2日(2006.11.2)
公報発行日 平成20年11月12日(2008.11.12)
公報発行日 平成23年9月28日(2011.9.28)
優先権データ
  • 特願2005-325393 (2005.11.9) JP
発明の名称 (英語) Iron-based alloy having shape-memory property and superelasticity and method for manufacture thereof
発明の概要(英語)

Disclosed is an iron-based alloy having a shape-memory property and superelasticity. The alloy comprises 25-35% by mass of Ni, 13-25% by mass of Co, 2-8% by mass of Al, at least one component selected from the group consisting of 1-5% by mass of Ti, 2-10% by mass of Nb and 3-20% by mass of Ta in a total amount of 1-20% by mass, and the remainder comprising substantially Fe and inavoidable impurities. The iron-based alloy is composed substantially of gamma-phase and gamma'-phase and has a re-crystallized coherent tissue wherein a specific crystal orientation is uniform in the gamma-phase, in which the difference between the reverse transformation end temperature and the martensitic transformation start temperature in the thermal hysteresis in martensitic transformation and reverse transformation is 100 DEG C or lower.

  • 出願人(英語)
  • JAPAN SCIENCE & TECH AGENCY
  • 発明者(英語)
  • ISHIDA KIYOHITO,
  • KAINUMA RYOSUKE,
  • SUTOU YUJI,
  • TANAKA YUUKI
国際特許分類(IPC)
参考情報 (研究プロジェクト等) CREST The Innovation of Simulation Technology and the Construction of Foundations for Its Practical Use AREA
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