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

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Creep Behavior of a Zirconium Alloy Processed by Equal-Channel Angular Pressing
Original language description
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.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Project
<a href="/en/project/GAP108%2F11%2F2260" target="_blank" >GAP108/11/2260: The link between microstructure and creep behaviour of precipitate strengthened alloys processed by ECAP</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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