Kinetics of Static Recrystallization in the Coarse-grained Fe–40 At.%Al–Zr–B Alloy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F17%3A00004123" target="_blank" >RIV/46747885:24210/17:00004123 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27360/17:10238539 RIV/68378271:_____/17:00502068
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S1644966517300341" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1644966517300341</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.acme.2017.03.004" target="_blank" >10.1016/j.acme.2017.03.004</a>
Alternative languages
Result language
angličtina
Original language name
Kinetics of Static Recrystallization in the Coarse-grained Fe–40 At.%Al–Zr–B Alloy
Original language description
The aim of works was to describe mathematically the kinetics of static recrystallization of the alloy type Fe–40 at.%Al–Zr–B (with 24.6 Al–0.01 B–0.18 Zr–0.01 C in wt.%) with the coarse-grained structure. The microstructure of the laboratory castings made of this extremely brittle alloy was homogenized by hot rolling of the material in the protective capsules and by the long-term annealing at 1200 °C. An initial microstructure with average grain size 0.77 ± 0.27 mm was obtained. Based on the isothermal plastic deformation tests and EBSD analysis, the static recrystallization kinetics of the prepared coarse-grained B2 iron aluminide after strain 0.20 was mathematically described. Recrystallized fraction depends on deformation/annealing temperature (900–1100 °C) as well as on annealing time. The activation energy of static recrystallization was calculated as 255 kJ mol-1. Competition between dynamic recovery and static recrystallization was proved after strain 0.35 and annealing temperature 1100 °C. Static recrystallization starts relatively easily in the studied alloy, but a very long-term annealing is quite necessary for the complete course of recrystallization. The mean size of recrystallized grains falls with the decreasing annealing temperature (0.47 ± 0.15 mm for temperature 1100 °C, and 0.22 ± 0.04 mm for 900 °C). Even at a temperature of 1200 °C the annealing after deformation should last approx. 1 min for obtaining the fully recrystallized microstructure. That is why the standard hot forming technologies should be combined by an interpass annealing in order to refine sufficiently the coarse grains.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Archives of Civil and Mechanical Engineering
ISSN
1644-9665
e-ISSN
—
Volume of the periodical
17
Issue of the periodical within the volume
4
Country of publishing house
PL - POLAND
Number of pages
11
Pages from-to
816-826
UT code for WoS article
000416528900009
EID of the result in the Scopus database
2-s2.0-85017691132