Transformation characteristics of selected ternary and quaternary shape memory alloys from systems Ni-Ti-(X); (X=Cu, Co, Mo)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F10%3A86075270" target="_blank" >RIV/61989100:27360/10:86075270 - 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

Transformation characteristics of selected ternary and quaternary shape memory alloys from systems Ni-Ti-(X); (X=Cu, Co, Mo)

Popis výsledku v původním jazyce

Transformation in Ni-Ti-Cu alloys containing Cu up to approx. 5at.% occurs as in binary alloys. This means that it is a single-phase transformation. If the content of Cu in the alloy is higher than approx. 7at.%, high temperature phase B2 is transformedto martensite B19 and afterwards to martensite B19´. Ni-Ti-Co alloys transform according to the sequence B2->R->B19´, i.e. similarly as certain group of binary alloys or alloys of the system Ni-Ti-Fe. Alloys Ni46-Ti50-Co4, Ni40-Ti50-Cu10 and Ni44.5-Ti50-Cu5-Mo0.5 (at.%) were chosen as experimental material. The alloys were prepared by high frequency induction vacuum melt in graphite crucible, casting was made into graphite moulds. The casting was then re-forged by hot swaging and drawn to the final formof wire. The paper is focused on investigation of transformation characteristics of the above mentioned alloys in dependence on heat treatment or forming. Measurement of transformation temperatures was made by resistometric method.

Název v anglickém jazyce

Transformation characteristics of selected ternary and quaternary shape memory alloys from systems Ni-Ti-(X); (X=Cu, Co, Mo)

Popis výsledku anglicky

Transformation in Ni-Ti-Cu alloys containing Cu up to approx. 5at.% occurs as in binary alloys. This means that it is a single-phase transformation. If the content of Cu in the alloy is higher than approx. 7at.%, high temperature phase B2 is transformedto martensite B19 and afterwards to martensite B19´. Ni-Ti-Co alloys transform according to the sequence B2->R->B19´, i.e. similarly as certain group of binary alloys or alloys of the system Ni-Ti-Fe. Alloys Ni46-Ti50-Co4, Ni40-Ti50-Cu10 and Ni44.5-Ti50-Cu5-Mo0.5 (at.%) were chosen as experimental material. The alloys were prepared by high frequency induction vacuum melt in graphite crucible, casting was made into graphite moulds. The casting was then re-forged by hot swaging and drawn to the final formof wire. The paper is focused on investigation of transformation characteristics of the above mentioned alloys in dependence on heat treatment or forming. Measurement of transformation temperatures was made by resistometric method.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

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 periodika

Hutnické listy

ISSN

0018-8069

e-ISSN

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Svazek periodika

63

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

93-97

Kód UT WoS článku

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EID výsledku v databázi Scopus

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