Different creep behaviour and microstructure of ECAP aluminium with the identical ECAP history

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F10%3A00349529" target="_blank" >RIV/68081723:_____/10:00349529 - 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
Different creep behaviour and microstructure of ECAP aluminium with the identical ECAP history
Original language description
Experiments were conducted on extremely coarse - grained Al (99.99%. The subsequent extrusion passes were performed by route A (no rotation between subsequent passes) up to 2 ECAP passes. Creep tests in tension were performed on the as-pressed samples at473 K and applied stress 15 MPa. It was found that the ultrafine - grained Al specimens with the same ECAP history showed the scatter in the creep properties. In this work the microstructure changes within grains with different crystallographic orientations and near their high - angle boundaries of coarse-grained state in the sample after different ECAP passes were studied. Mutual comparison of the results of microstructural characterization of microstructure of as-received coarse-grained state and thestate after different ECAP passes were performed. It is concluded that the scatter in creep properties could be influenced by inhomogeneity of ECAP microstructure.
Czech name
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Czech description
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Project
<a href="/en/project/GPP108%2F10%2FP469" target="_blank" >GPP108/10/P469: Influence of initial crystallographic orientation on creep behaviour of SPD materials</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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