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Published in: Metallurgical and Materials Transactions A 9/2022

15-06-2022 | Brief Communication

Aging Enhanced Super-Elasticity and Ductility of a Cold NiTiTa Alloy

Authors: Song Cai, Jeremy E. Schaffer, Yang Ren

Published in: Metallurgical and Materials Transactions A | Issue 9/2022

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Abstract

A cold NiTiTa alloy was found to be very brittle in the fully annealed condition due to its high-austenite stability, which suppressed stress-induced-martensite transformation and dislocation slip. However, ductility and super-elasticity are largely improved by formation of Ti3Ni4 and Ti2Ni3 precipitates upon aging at lower temperatures. Cold work promotes Ti2Ni3 precipitation during aging. Compared to the as-drawn material, the fully annealed material shows higher strain recovery and elongation after aging for a short amount of time.

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Metadata
Title
Aging Enhanced Super-Elasticity and Ductility of a Cold NiTiTa Alloy
Authors
Song Cai
Jeremy E. Schaffer
Yang Ren
Publication date
15-06-2022
Publisher
Springer US
Published in
Metallurgical and Materials Transactions A / Issue 9/2022
Print ISSN: 1073-5623
Electronic ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-022-06738-7

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