Methods for Ni-Ti based alloys preparation and their comparison

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Methods for Ni-Ti based alloys preparation and their comparison

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Methods for Ni-Ti based alloys preparation and their comparison

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F09%2F1573" target="_blank" >GA106/09/1573: Optimalizace chemického složení, strukturních charakteristik a mechanických vlastností slitini NiTi pro biomechanické účely</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

METAL 2010

ISBN

978-80-87294-17-8

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

861-866

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Rožnov pod Radhoštěm

Datum konání akce

18. 5. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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