Generation And Stability Of Reversible Shape

 Change In NiTi Memory Alloys

A.C. Kneissl; H. Scherngell

doi:10.2495/SM980261

Generation And Stability Of Reversible Shape Change In NiTi Memory Alloys

Price

Free (open access)

Transaction

WIT Transactions on The Built Environment

Volume

Pages

Published

1998

Size

894 kb

Paper DOI

10.2495/SM980261

WIT Press

Author(s)

A.C. Kneissl & H. Scherngell

Abstract

Shape Memory Alloys (SMA) are promising materials for actuator components. This work focuses on the principal aspects underlying the deformation phenome- non known as Two-Way Shape Memory Effect (TWSME). On wire specimens of a near equiatomic NiTi alloy such an effect is achieved by a thermomechanical treatment. Depending on the training parameters and heat treatment conditions, different magnitudes of reversible shape change are obtained. Further experi- mental work concentrates on the stability of this special effect throughout cyclic application. Again a strong influence of the initial microstructure on the degrada- tion characteristic is observed. 1 Introduction The term shape memory refers to the ability of certain alloys

Keywords

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Code

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