Tokyo Institute of Technology

The Furukawa Electric Co., Ltd.

Tanaka Kikinzoku Kogyo K.k.

Furukawa Techno Material Co., Ltd.

Yuri Shinohara

Hideki Hosoda

Tomonari Inamura

Masaki Tahara

Keisuke Saito

Kenji Goto

Sumio Kise

Misato Fujii

Fumiyoshi Yamashita

Ryota Morishige

Kota Fuchiwaki

A Ti&#x2014;Ni-based alloy, which has a torsion angle for Interface I that is a junction plane between habit plane variants of a martensitic phase, of less than 1.00&#xb0;; a wire, an electrically conductive actuator, and a temperature sensor, each of which uses that alloy; and a method of producing the Ti&#x2014;Ni-based alloy.

Ti&#x2014;Ni-based alloy; wire, electrically conductive actuator, and temperature sensor, each using this alloy; and method of producing a Ti&#x2014;Ni-based alloy

The present invention provides a superelastic alloy containing Au in an amount of 8.0% by mass or more and 20.0% by mass or less and at least one of Cr and Mo as essential additive elements, Ta as an optional additive element, and Ti and inevitable impurities as a balance, wherein the Cr equivalent calculated on the basis of the following formula for the relationship of the Cr content, the Mo content and the Ta content is within the range of more than 0.5 and less than 8.0. The alloy is a Ni-free superelastic alloy, and has favorable X-ray-imaging property. Accordingly, the alloy can be suitably used in medical fields.Cr equivalent=[Cr content (% by mass)]+([Mo content (% by mass)]/1.7)+([Ta content (% by mass)]/15)&#x2003;&#x2003;[Formula 1]

Superelastic alloy

Growing community of inventors

Tokyo, Japan

Yuri Shinohara