Annealing effects in hot-deformed Al-Mn-Sc-Zr alloys
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10316199" target="_blank" >RIV/00216208:11320/15:10316199 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/15:00236936
Result on the web
<a href="http://dx.doi.org/10.4149/km_2015_5_295" target="_blank" >http://dx.doi.org/10.4149/km_2015_5_295</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4149/km_2015_5_295" target="_blank" >10.4149/km_2015_5_295</a>
Alternative languages
Result language
angličtina
Original language name
Annealing effects in hot-deformed Al-Mn-Sc-Zr alloys
Original language description
Microstructure, thermal, electrical and mechanical properties of the hot-extruded and hot-rolled AlMnScZr alloys were studied. The electrical resistometry and microhardness together with differential scanning calorimetry measurements were compared with microstructure development observed by transmission electron microscopy, X-ray diffraction, and electron backscatter diffraction. Fine subgrain or grain structure developed and fine coherent AL(3)(Sc,Zr) particles precipitated during hot deformation and subsequent cooling. The distinct resistivity changes are mainly caused by precipitation of Mn-containing particles. The pronounced two-stage development of the AL(6)(Mn,Fe)-phase precipitation was observed. Nevertheless, the precipitation has a negligible effect on microhardness. The presence of the Mn-containing particles with a size of similar to 50 nm inside subgrains or grains and similar to 2 mu m at subgrain or grain boundaries has a significant antirecrystallization effect. The combination of Mn, Sc and Zr additions to Al suppresses recrystallization during isothermal annealing at 550 degrees C. Hot deformation has no effect on the apparent activation energy values of the Al3Sc-phase precipitation (Q = 109 kJ mol(-1)) and Al6Mn-phase precipitation (Q = 156 kJ mol(-1)).
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
JG - Metallurgy, metal 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
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Kovové materiály
ISSN
0023-432X
e-ISSN
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Volume of the periodical
53
Issue of the periodical within the volume
5
Country of publishing house
SK - SLOVAKIA
Number of pages
10
Pages from-to
295-304
UT code for WoS article
000366344600001
EID of the result in the Scopus database
2-s2.0-84947075776