Global Patent Index - EP 0187452 B1

EP 0187452 B1 19910206 - A METHOD OF PROCESSING A NICKEL/TITANIUM-BASED SHAPE MEMORY ALLOY AND ARTICLE PRODUCED THEREFROM

Title (en)

A METHOD OF PROCESSING A NICKEL/TITANIUM-BASED SHAPE MEMORY ALLOY AND ARTICLE PRODUCED THEREFROM

Publication

EP 0187452 B1 19910206 (EN)

Application

EP 85308080 A 19851106

Priority

  • US 66877184 A 19841106
  • US 78337185 A 19851007

Abstract (en)

[origin: EP0187452A1] There is disclosed a method of processing a nickel/titanium-based shape memory alloy. The method comprises overdeforming the alloy so as to cause at least some amount of nonrecoverable strain, temporarily expanding the transformation hysteresis by raising the austenite transformation temperature, removing the applied stress and then storing the alloy at a temperature less than the new austenite transition temperature. There is also disclosed a method of preassembling a composite coupling which includes the steps of overdeforming a driver member, removing the stress, engaging the driver member and an insert and them warming the driver and insert to a temperature less than As min . Finally, there are disclosed couplings produced by these methods.

IPC 1-7

C22F 1/00

IPC 8 full level

C22F 1/00 (2006.01)

CPC (source: EP)

C22F 1/006 (2013.01)

Citation (examination)

Phy. Stat. Sol. (a) 75(1983) p. 373-377

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0187452 A1 19860716; EP 0187452 B1 19910206; CA 1269915 A 19900605; DE 3581721 D1 19910314

DOCDB simple family (application)

EP 85308080 A 19851106; CA 494649 A 19851105; DE 3581721 T 19851106