High-temperature and low-stress creep anisotropy of single-crystal superalloys
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F13%3A00398847" target="_blank" >RIV/68081723:_____/13:00398847 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.actamat.2013.01.052" target="_blank" >http://dx.doi.org/10.1016/j.actamat.2013.01.052</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.actamat.2013.01.052" target="_blank" >10.1016/j.actamat.2013.01.052</a>
Alternative languages
Result language
angličtina
Original language name
High-temperature and low-stress creep anisotropy of single-crystal superalloys
Original language description
The high-temperature and low-stress creep (1293 K, 160 MPa) of the single-crystal Ni-based superalloy LEK 94 is investigated, comparing the tensile creep behavior of miniature creep specimens in [0 0 1] and [1 1 0] directions. In the early stages of creep, the [0 0 1]-direction loading shows higher minimum creep rates, because a greater number of microscopic crystallographic slip systems are activated, the dislocation networks at gamma/gamma' interfaces accommodate lattice misfit better, and gamma channels are wider. After the creep rate minimum, creep rates increase more strongly as a function of strain for [1 1 0] tensile loading. This may be related to the nature of rafting during [1 1 0] tensile creep, which results in a more open topology of the gamma channels. It may also be related to more frequent gamma' cutting events compared with [1 0 0] tensile creep.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA202%2F09%2F2073" target="_blank" >GA202/09/2073: Deformation mechanisms of in-situ composite materials</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Materialia
ISSN
1359-6454
e-ISSN
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Volume of the periodical
61
Issue of the periodical within the volume
8
Country of publishing house
GB - UNITED KINGDOM
Number of pages
18
Pages from-to
2926-2943
UT code for WoS article
000317797700019
EID of the result in the Scopus database
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