Methods for Ni-Ti based alloys preparation and their comparison

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F10%3A86075216" target="_blank" >RIV/61989100:27360/10:86075216 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Methods for Ni-Ti based alloys preparation and their comparison
Original language description
Temperatures of phase transformations and properties of the Ni-Ti and Ni-Ti-X based shape memory alloys are in the first place highly dependent on processing technology. At present, the Ni-Ti-(X) based alloys are mostly prepared in vacuum, and various methods of melting are used (electron-beam melting, arc melting, high-frequency induction melting). Another possibility for the preparation should be plasma melting. Complications during preparation are caused mainly by carbon, nitrogen and oxygen, which could form non-metallic inclusions. Due to titanium carbide formation in Ni-Ti matrix, the concentrations of nickel and titanium are shifted, so this leads to change of the temperature of martensitic transformation. Creation of a low-melting phase Ti2Ni,which causes a distinct susceptibility to hot formation of cracks, is another issue arising during melting of Ni-Ti alloys. The presented work is focused on comparison of individual methods of preparation of the alloys mentioned above.
Czech name
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Czech description
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Project
<a href="/en/project/GA106%2F09%2F1573" target="_blank" >GA106/09/1573: Optimization of the chemical composition, structural characteristics and mechanical properies of NiTi alloys for biomechanical applicatipons</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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