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

Song CAI; Jeremy E. SCHAFFER; Yang REN

doi:10.1007/s11661-022-06738-7

Author(s)

Song CAI
Jeremy E. SCHAFFER
Yang REN

Related Research Unit(s)

Department of Physics

Detail(s)

Original language	English
Journal / Publication	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Online published	15 Jun 2022
Publication status	Online published - 15 Jun 2022

Link(s)

DOI	DOI https://doi.org/10.1007/s11661-022-06738-7
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85132118449&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(563b277d-4ecb-4931-852c-b4f5bca24094).html

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.

Citation Format(s)

[ RIS ] [ BibTeX ]

Aging Enhanced Super-Elasticity and Ductility of a Cold NiTiTa Alloy. / CAI, Song; SCHAFFER, Jeremy E.; REN, Yang.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 15.06.2022.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

CAI, S, SCHAFFER, JE & REN, Y 2022, 'Aging Enhanced Super-Elasticity and Ductility of a Cold NiTiTa Alloy', Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. https://doi.org/10.1007/s11661-022-06738-7

CAI, S., SCHAFFER, J. E., & REN, Y. (2022). Aging Enhanced Super-Elasticity and Ductility of a Cold NiTiTa Alloy. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. Advance online publication. https://doi.org/10.1007/s11661-022-06738-7

CAI S, SCHAFFER JE, REN Y. Aging Enhanced Super-Elasticity and Ductility of a Cold NiTiTa Alloy. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 2022 Jun 15. Epub 2022 Jun 15. doi: 10.1007/s11661-022-06738-7

CAI, Song ; SCHAFFER, Jeremy E. ; REN, Yang. / Aging Enhanced Super-Elasticity and Ductility of a Cold NiTiTa Alloy. In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 2022.