Effect of severe plastic deformation on creep behaviour of a Ti-6Al-4V alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F13%3A00396602" target="_blank" >RIV/68081723:_____/13:00396602 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10853-013-7160-9" target="_blank" >http://dx.doi.org/10.1007/s10853-013-7160-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10853-013-7160-9" target="_blank" >10.1007/s10853-013-7160-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of severe plastic deformation on creep behaviour of a Ti-6Al-4V alloy

Popis výsledku v původním jazyce

This paper examines the effect of severe plastic deformation on creep behaviour of a Ti-6Al-4V alloy. The processed material with an ultrafine-grained (UFG) structure (d a parts per thousand 150 nm) was prepared by multiaxial forging. Uniaxial constant stress compression and constant load tensile creep tests were performed at 648-698 K and at stresses ranging between 300 and 600 MPa on the UFG processed alloy and, for comparison purposes, on its coarse-grained (CG) state. Creep behaviour was also investigated by nanoindentation method at room temperature under constant load. The results of the uniaxial creep tests showed that the minimum creep rates of the UFG specimens are significantly higher in comparison with those of the CG state. The CG alloy exhibits better creep resistance than the UFG one over the stress range used. The indentation creep tests showed that annealing had little effect on the creep behaviour in UFG Ti alloy at room temperature.

Název v anglickém jazyce

Effect of severe plastic deformation on creep behaviour of a Ti-6Al-4V alloy

Popis výsledku anglicky

This paper examines the effect of severe plastic deformation on creep behaviour of a Ti-6Al-4V alloy. The processed material with an ultrafine-grained (UFG) structure (d a parts per thousand 150 nm) was prepared by multiaxial forging. Uniaxial constant stress compression and constant load tensile creep tests were performed at 648-698 K and at stresses ranging between 300 and 600 MPa on the UFG processed alloy and, for comparison purposes, on its coarse-grained (CG) state. Creep behaviour was also investigated by nanoindentation method at room temperature under constant load. The results of the uniaxial creep tests showed that the minimum creep rates of the UFG specimens are significantly higher in comparison with those of the CG state. The CG alloy exhibits better creep resistance than the UFG one over the stress range used. The indentation creep tests showed that annealing had little effect on the creep behaviour in UFG Ti alloy at room temperature.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Science

ISSN

0022-2461

e-ISSN

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Svazek periodika

48

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

4789-4795

Kód UT WoS článku

000317367200042

EID výsledku v databázi Scopus

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