Quenched-in Vacancies and Hardening of Fe-Al Intermetallics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10423668" target="_blank" >RIV/00216208:11320/20:10423668 - isvavai.cz</a>

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JWRC7ew1i5" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JWRC7ew1i5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12693/APhysPolA.137.255" target="_blank" >10.12693/APhysPolA.137.255</a>

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 degrees C as well as those annealed subsequently at 520 degrees C for 1 h were subject to study. Slow-positron beam experiments combined with Vicker&apos;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 (&lt; 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

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Acta Physica Polonica A

ISSN

0587-4246

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