On the measurement of recovery strains of thermo-mechanically cycled Ni-Ti memory alloy

Krzysztof Kus; Piotr Chwiedziewicz

doi:10.1117/12.726766

10 April 2007 On the measurement of recovery strains of thermo-mechanically cycled Ni-Ti memory alloy

Krzysztof Kus, Piotr Chwiedziewicz

Proceedings Volume 6597, Nanodesign, Technology, and Computer Simulations; 659712 (2007) https://doi.org/10.1117/12.726766
Event: Nanodesign, Technology, and Computer Simulations, 2006, Olsztyn, Poland

Abstract

This paper includes an experimental study of strains variation (recovery and permanent strains) in a Ni-Ti alloy due to thermo-mechanical cycling. The shape memory effect (SME) was evaluated in strip-shaped specimens using a special bending apparatus and discussed with respect to different thermo-mechanical loading paths. The definite transformation temperatures of the studied alloy were achieved by applying several heat-treatments at various temperatures and for different times, and observing the phase transformation behaviour using DSC analysis. To identify the phases present after annealing the specimens were subjected to XRD measurements. It was found that the nature of transformation cycle during the two applied thermo-mechanical loading paths (especially a stress during reverse transformation) and the changes developed in microstructure of the cycled material can both affect the strains behaviour.

Citation Download Citation

Krzysztof Kus and Piotr Chwiedziewicz "On the measurement of recovery strains of thermo-mechanically cycled Ni-Ti memory alloy", Proc. SPIE 6597, Nanodesign, Technology, and Computer Simulations, 659712 (10 April 2007); https://doi.org/10.1117/12.726766

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available