Influence of Cobalt and Molybdenum Additives on the Structure and Shape Memory Parameters of Reaction-Sintered Porous Nickel Titanium Alloys
- Authors: Artyukhova N.V.1, Yasenchuk Y.F.1, Garin A.S.1, Gyunter V.E.1
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Affiliations:
- Tomsk State University
- Issue: Vol 44, No 7 (2018)
- Pages: 650-653
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/207811
- DOI: https://doi.org/10.1134/S1063785018070192
- ID: 207811
Cite item
Abstract
We have studied the structure and properties of porous nickel titanium (TiNi) alloys obtained upon reaction sintering of Ti and Ni powders with Co and Mo additives. It is established that Co and Mo doping additives retain the compaction of Ni powder achieved at the initial stage of sintering. The maximum deformation of porous samples loaded in the austenite state was observed upon adding Co, while the addition of Mo resulted in minimum deformation. The addition of Co leads to single-stage martensitic transformation in TiNi phase, while the addition of Mo leads to the two-stage transformation that is more homogeneous over the volume. Both Co and Mo additives lead to increase in the maximum accumulated strain due to the formation of favorably oriented stress-induced martensite and reoriented quench-induced martensite.
About the authors
N. V. Artyukhova
Tomsk State University
Author for correspondence.
Email: artyukhova_nad@mail.ru
Russian Federation, Tomsk, 634050
Yu. F. Yasenchuk
Tomsk State University
Email: artyukhova_nad@mail.ru
Russian Federation, Tomsk, 634050
A. S. Garin
Tomsk State University
Email: artyukhova_nad@mail.ru
Russian Federation, Tomsk, 634050
V. E. Gyunter
Tomsk State University
Email: artyukhova_nad@mail.ru
Russian Federation, Tomsk, 634050