Effect of microstructure on creep behaviour of cast Mg97Y2Zn1 (at.%) alloy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F12%3A00385500" target="_blank" >RIV/68081723:_____/12:00385500 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.msea.2012.01.023" target="_blank" >http://dx.doi.org/10.1016/j.msea.2012.01.023</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.msea.2012.01.023" target="_blank" >10.1016/j.msea.2012.01.023</a>
Alternative languages
Result language
angličtina
Original language name
Effect of microstructure on creep behaviour of cast Mg97Y2Zn1 (at.%) alloy
Original language description
The creep resistance of the Mg97Y2Zn1 (at.%) alloy in the as-cast condition and after a isochronal thermal treatment up to 560 C is evaluated from 200 C to 350 C. The as-cast alloy shows a microstructure characterized bymagnesiumdendrites and a Long-Period Stacking Ordered Structure in the interdendritic regions. The heat treated alloy shows a fully lamellar structure within magnesium grains. In both cases, the stress dependence of the creep rate presents two different regions. For low temperature and/or high strain rates, the creep behaviour shows a high stress exponent (n = 11) and high activation energy. The alloy behaves as a metal matrix composite where the magnesium matrix transfers part of its load to the LPSO-phase. Moreover, the lamellar structure within the magnesium grains in the thermal treated alloy results in an additional barrier against creep deformation. At high temperature and/or low strain rates, creep is controlled by non-basal dislocation slip. The cast alloy showe
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
JI - Composite materials
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Science and Engineering A-Structural materials
ISSN
0921-5093
e-ISSN
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Volume of the periodical
539
Issue of the periodical within the volume
MARCH
Country of publishing house
CH - SWITZERLAND
Number of pages
8
Pages from-to
48-55
UT code for WoS article
000302047300008
EID of the result in the Scopus database
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