The effect of high hydrostatic pressure on creep behaviour of pure Al and a Cu-0.2 wt% Zr alloy processed by equal-channel angular pressing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F13%3A00421226" target="_blank" >RIV/68081723:_____/13:00421226 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.msea.2013.07.018" target="_blank" >http://dx.doi.org/10.1016/j.msea.2013.07.018</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.msea.2013.07.018" target="_blank" >10.1016/j.msea.2013.07.018</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of high hydrostatic pressure on creep behaviour of pure Al and a Cu-0.2 wt% Zr alloy processed by equal-channel angular pressing

Popis výsledku v původním jazyce

The effect of an application of high hydrostatic pressure on the microstructure, nanoscale porosity and creep behaviour of high purity aluminium and a Cu-0.2 wt% Zr alloy processed by ECAP was examined with an emphasis on creep resistance and lifetime. It was found that, under the same loading conditions, specimens subjected to a subsequent high hydrostatic compression pressure prior to creep exposure exhibited longer times to creep fracture than those pressed by ECAP only. However, this impact continuously decreases with the increasing number of ECAP passes. A detailed quantitative microstructure study was conducted using TEM, SEM-EBSD and a small-angle X-ray scattering (SAXS) method and dilatometry. These analyses revealed that a general increase inthe creep resistance of pressurized material may be explained by an increase in the density and the corresponding decrease in the nanoporosity of the material. Further, it was revealed that the fraction of high-angle grain boundaries incr

Název v anglickém jazyce

The effect of high hydrostatic pressure on creep behaviour of pure Al and a Cu-0.2 wt% Zr alloy processed by equal-channel angular pressing

Popis výsledku anglicky

The effect of an application of high hydrostatic pressure on the microstructure, nanoscale porosity and creep behaviour of high purity aluminium and a Cu-0.2 wt% Zr alloy processed by ECAP was examined with an emphasis on creep resistance and lifetime. It was found that, under the same loading conditions, specimens subjected to a subsequent high hydrostatic compression pressure prior to creep exposure exhibited longer times to creep fracture than those pressed by ECAP only. However, this impact continuously decreases with the increasing number of ECAP passes. A detailed quantitative microstructure study was conducted using TEM, SEM-EBSD and a small-angle X-ray scattering (SAXS) method and dilatometry. These analyses revealed that a general increase inthe creep resistance of pressurized material may be explained by an increase in the density and the corresponding decrease in the nanoporosity of the material. Further, it was revealed that the fraction of high-angle grain boundaries incr

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

Materials Science and Engineering A-Structural materials

ISSN

0921-5093

e-ISSN

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Svazek periodika

584

Číslo periodika v rámci svazku

NOV

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

103-113

Kód UT WoS článku

000324605100015

EID výsledku v databázi Scopus

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