Creep Behavior of a Zirconium 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_____%2F12%3A00385170" target="_blank" >RIV/68081723:_____/12:00385170 - 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

Creep Behavior of a Zirconium Alloy Processed by Equal-Channel Angular Pressing

Popis výsledku v původním jazyce

A Zr 2.5 wt%Nb alloy was processed by equal-channel angular pressing and then tested under creep conditions at 623 K using a tensile stress within the range from 120 to 300 MPa. The results show conventional power-law creep with a stress exponent of n >3 which is consistent with an intragranular dislocation process involving the glide and climb of dislocations. It is demonstrated that di usion creep is not important in these tests. For comparison purposes, the experiments were conducted using both theunprocessed alloy and after processing by equal-channel angular pressing. It was found that under same testing conditions the measured minimum creep rates in the pressed alloy with ultra ne grain sizes were faster than in the same alloy in a coarse-grained unprocessed condition.

Název v anglickém jazyce

Creep Behavior of a Zirconium Alloy Processed by Equal-Channel Angular Pressing

Popis výsledku anglicky

A Zr 2.5 wt%Nb alloy was processed by equal-channel angular pressing and then tested under creep conditions at 623 K using a tensile stress within the range from 120 to 300 MPa. The results show conventional power-law creep with a stress exponent of n >3 which is consistent with an intragranular dislocation process involving the glide and climb of dislocations. It is demonstrated that di usion creep is not important in these tests. For comparison purposes, the experiments were conducted using both theunprocessed alloy and after processing by equal-channel angular pressing. It was found that under same testing conditions the measured minimum creep rates in the pressed alloy with ultra ne grain sizes were faster than in the same alloy in a coarse-grained unprocessed condition.

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/GAP108%2F11%2F2260" target="_blank" >GAP108/11/2260: Vztah mezi mikrostrukturou a creepovým chováním precipitačně zpevněných slitin připravených metodou ECAP</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Acta Physica Polonica. A

ISSN

0587-4246

e-ISSN

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Svazek periodika

122

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

5

Strana od-do

485-489

Kód UT WoS článku

000309019200016

EID výsledku v databázi Scopus

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