Quenched-in vacancies and hardening of Fe-Al intermetallics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F20%3A00541075" target="_blank" >RIV/61389021:_____/20:00541075 - isvavai.cz</a>
Result on the web
<a href="http://przyrbwn.icm.edu.pl/APP/PDF/137/app137z2p41.pdf" target="_blank" >http://przyrbwn.icm.edu.pl/APP/PDF/137/app137z2p41.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.12693/APhysPolA.137.255" target="_blank" >10.12693/APhysPolA.137.255</a>
Alternative languages
Result language
angličtina
Original language name
Quenched-in vacancies and hardening of Fe-Al intermetallics
Original language description
The role of vacancies in hardening of Fe-Al intermetallic alloys were studied in the present work for a wide range of Al concentrations from 20 to 50 at%. The alloys quenched from 1000 °C as well as those annealed subsequently at 520 °C for 1 h were subject to study. Slow-positron beam experiments combined with Vicker's microhardness tests were utilised. Hardness of Fe-Al alloys exhibited a somewhat complex dependence on Al content which could not be fully explained purely by consideration of intermetallic phases formed. This happens due to additional hardening effect caused by quenched-in vacancies. The concentrations of vacancies were estimated from positron back-diffusion data and found to rise for Al content above 25 at%. Correlation of vacancy concentrations with hardness data for the quenched and annealed alloys has revealed that hardening of alloys with a low Al content (< 30 at%) is originated predominantly by anti-phase boundaries while hardening induced by quenched-in vacancies dominates for alloys with a higher Al content (30-50 at%).
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
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Physica Polonica A
ISSN
1898-794X
e-ISSN
—
Volume of the periodical
137
Issue of the periodical within the volume
2
Country of publishing house
PL - POLAND
Number of pages
5
Pages from-to
255-259
UT code for WoS article
000529332100042
EID of the result in the Scopus database
2-s2.0-85083816844