MICROSTRUCTURE AND PROPERTIES OF NITINOL ALLOY REINFORCED WITH Ni-Ti INTERMETALLICS AND CARBIDES

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F25%3AN0000013" target="_blank" >RIV/26316919:_____/25:N0000013 - isvavai.cz</a>
Result on the web
<a href="https://www.icct.cz/cs/2025" target="_blank" >https://www.icct.cz/cs/2025</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
MICROSTRUCTURE AND PROPERTIES OF NITINOL ALLOY REINFORCED WITH Ni-Ti INTERMETALLICS AND CARBIDES
Original language description
Nitinol is well known for its unique properties, such as the shape memory effect and superelasticity. It is widely used in stents, bone fixations, joining elements, temperature sensors, actuators, and vibration dampers. The aim of this study is to investigate the effect of reinforcing intermetallic particles and carbides on the hardness, wear resistance, and microstructure of Nitinol. The samples were fabricated using direct energy deposition (DED) from powder feedstock. A pre-alloyed NiTi powder with the addition of nickel, a Ni79Ti21 (wt.%) powder mixture, and tungsten carbides (WC) was used as the feedstock material. The Ni3Ti intermetallic phase were formed in situ during the 3D printing process, while carbide particles were added separately. No defects such as cracks or pores were observed in microstructures of the carbides-reinforcement samples and the same time, the wear resistance of these samples increased significantly. On the contrary, cracks were found in samples rich in the Ni3Ti phase. The hardness of samples containing the Ni3Ti phase increased, while the hardness of the NiTi matrix in WCreinforced samples remained unchanged.
Czech name
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Czech description
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Project
<a href="/en/project/GA25-15757S" target="_blank" >GA25-15757S: Plasma valorization of waste into cutting-edge cermet composites for high kinetic energy dissipation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
PROCEEDINGS OF THE 12TH INTERNATIONAL CONFERENCE ON CHEMICAL TECHNOLOGY, ICCT
ISBN
978-80-88307-27-3
ISSN
2336-811X
e-ISSN
2336-8128
Number of pages
4
Pages from-to
132-135
Publisher name
Česká Společnost Průmyslové Chemie
Place of publication
Praha
Event location
Mikulov
Event date
Apr 14, 2025
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001678792400022

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