Dynamic Recrystallization and Activation Energy at Hot Forming of the Alloy Fe-40Al-Zr-B

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F11%3A86081397" target="_blank" >RIV/61989100:27360/11:86081397 - 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

Dynamic Recrystallization and Activation Energy at Hot Forming of the Alloy Fe-40Al-Zr-B

Original language description

The fundamental aim was to determine the activation energy of the iron aluminide of the type Fe-40Al-Zr-B. Composition of the studied material in wt.% was 24.4 Al ? 0.17 Mn ? 0.02 C ? 0.17 Zr ? 0.011 B (the remainder is Fe). The aluminium content corresponded to 40.0 at.%. The uniaxial hot compression tests of the cylindrical specimens were performed after the unified preheating to the temperature of 1200°C. The forming temperatures 800 ? 1200°C and the nominal strain rate values 0.05 ? 30 s-1 were chosen. The value of the apparent activation energy Q = 561 kJ x mol-1 in hot forming was calculated. The comparison of this very high value with other results showed an extremely strong strengthening effect of Zr and B in this alloy. Using the obtained value of the activation energy it was possible to derive the useful equations, describing the maximum deformation resistance and the start of the dynamic recrystallization of the investigated material in dependence on temperature and strain r

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

<a href="/en/project/GAP107%2F10%2F0438" target="_blank" >GAP107/10/0438: Physical and metallurgical aspects of deformation behaviour of iron aluminides with extremely low plasticity</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Hutnické listy

ISSN

0018-8069

e-ISSN

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Volume of the periodical

64

Issue of the periodical within the volume

6

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

4

Pages from-to

62-65

UT code for WoS article

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EID of the result in the Scopus database

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