Properties of Ni-Ti-X shape memory alloys produced by arc re-melting

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43914399" target="_blank" >RIV/60461373:22310/17:43914399 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/17:00509855

Výsledek na webu

<a href="http://dx.doi.org/10.12776/ams.v23i2.856" target="_blank" >http://dx.doi.org/10.12776/ams.v23i2.856</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12776/ams.v23i2.856" target="_blank" >10.12776/ams.v23i2.856</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Properties of Ni-Ti-X shape memory alloys produced by arc re-melting

Popis výsledku v původním jazyce

This paper deals with Ni-Ti46 and Ni-Ti-X wt. % alloys prepared by arc re-melting under argon protective atmosphere. The melting was repeated three times to obtain a homogenous chemical composition of samples. Niobium, vanadium and silicon were chosen as alloying elements and they were added into the alloy in an amount of 5 wt. %. Microstructure, phase composition, hardness and transformation behaviour were investigated parameters. Properties of cast alloys are compared with alloys of the same chemical composition prepared by powder metallurgy method ? self-propagating high-temperature synthesis (SHS). Arc re-melting produced a more homogeneous microstructure with a lower content of the Ti2Ni phase than powder metallurgy methods in case of Ni-Ti-X alloys. Quite a high amount of the secondary phase (a mixture of the Ni2Ti, NiTi and Ti2 Ni phases) was created in the microstructure of Ni-Ti46 wt. % alloy. The addition of silicon caused an increase of transformation temperatures and hardness.

Název v anglickém jazyce

Properties of Ni-Ti-X shape memory alloys produced by arc re-melting

Popis výsledku anglicky

This paper deals with Ni-Ti46 and Ni-Ti-X wt. % alloys prepared by arc re-melting under argon protective atmosphere. The melting was repeated three times to obtain a homogenous chemical composition of samples. Niobium, vanadium and silicon were chosen as alloying elements and they were added into the alloy in an amount of 5 wt. %. Microstructure, phase composition, hardness and transformation behaviour were investigated parameters. Properties of cast alloys are compared with alloys of the same chemical composition prepared by powder metallurgy method ? self-propagating high-temperature synthesis (SHS). Arc re-melting produced a more homogeneous microstructure with a lower content of the Ti2Ni phase than powder metallurgy methods in case of Ni-Ti-X alloys. Quite a high amount of the secondary phase (a mixture of the Ni2Ti, NiTi and Ti2 Ni phases) was created in the microstructure of Ni-Ti46 wt. % alloy. The addition of silicon caused an increase of transformation temperatures and hardness.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA14-03044S" target="_blank" >GA14-03044S: Příprava slitin NiTi s tvarovou pamětí reaktivní sintrací</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Acta Metallurgica Slovaca

ISSN

1335-1532

e-ISSN

—

Svazek periodika

23

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

6

Strana od-do

141-146

Kód UT WoS článku

000405936700006

EID výsledku v databázi Scopus

2-s2.0-85021780713