Aging Enhanced Super-Elasticity and Ductility of a Cold NiTiTa Alloy
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
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Detail(s)
Original language | English |
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Journal / Publication | Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science |
Online published | 15 Jun 2022 |
Publication status | Online published - 15 Jun 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.
Citation Format(s)
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, 22, 62) › 21_Publication in refereed journal › peer-review