Title:
ねじ部を有するＣｕ－Ａｌ－Ｍｎ系形状記憶合金成形体及びその製造方法
Document Type and Number:
Japanese Patent JP7103588
Kind Code:
B2
Abstract:
A formed body of Cu-Al-Mn-based shape-memory alloy according to the present invention comprises a screw portion, wherein the screw portion is a form-rolled portion. A method for producing a formed body of Cu-Al-Mn-based shape-memory alloy according to the present invention comprises a step forming a screw portion having superelasticity by plastically working at least a portion of a material for the formed body with form-rolling in a state that a crystal structure is an A2-type structure and then, subjecting heat-treatment so as to convert the A2-type crystal structure into an L21-type crystal structure. The screw portion can be formed with good working property, and has excellent fatigue resistance property and breaking resistance property.
Inventors:
Juno Kise
Toyonobu Tanaka
Kenji Kazuma
Koji Ishikawa
Nana Kataoka
Yokoyama Shigekazu
Toyohiko Higashida
Yoshitaka Higashi
Toyonobu Tanaka
Kenji Kazuma
Koji Ishikawa
Nana Kataoka
Yokoyama Shigekazu
Toyohiko Higashida
Yoshitaka Higashi
Application Number:
JP2019016373A
Publication Date:
July 20, 2022
Filing Date:
January 31, 2019
Export Citation:
Assignee:
Furukawa Techno Material Co., Ltd.
Sekisui House Co., Ltd.
Sekisui House Co., Ltd.
International Classes:
C22C9/05; B21H3/02; C22C9/01; C22F1/08; F16B35/00
Domestic Patent References:
| JP2017141491A | ||||
| JP2004009135A |
Attorney, Agent or Firm:
Takuya Saito
Kimura Kiyoshi
Kimura Kiyoshi