Temperature effect on magnetic characteristics of Fe-Cr-Co-Si alloy specimens processed by thermomagnetic treatments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F25%3A10259456" target="_blank" >RIV/61989100:27230/25:10259456 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:001627510700001" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:001627510700001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/10667857.2025.2595685" target="_blank" >10.1080/10667857.2025.2595685</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Temperature effect on magnetic characteristics of Fe-Cr-Co-Si alloy specimens processed by thermomagnetic treatments

Popis výsledku v původním jazyce

Fe-Cr-Co magnets getting research focus due to the rapid increase of magnet demand, especially for super-speed motors owing to their remanence values equivalent to that of NdFeB super magnets. In this work, the magnetic characteristics in Fe-Cr-Co-Si alloy samples were induced by processing through isothermal thermomagnetic and step aging treatments, and then, the samples were investigated for thermal effect on magnetic characteristics. The effects of an increase in temperature on the remanence, coercivity and energy product were measured using a BH-Curve tracer. The specimens were prepared from the thermomagnetically processed and aged alloy bricks. Demagnetisation curves were measured at temperatures ranging from 20 degrees C to 400 degrees C, and the results were also analysed for thermal variation coefficients. A decline in magnetic properties with increasing temperature was noted. At 400 degrees C, the magnetic induction is reduced by 0.03%, the coercivity by 0.018% and the energy product decreased by 0.12% per kelvin.

Název v anglickém jazyce

Temperature effect on magnetic characteristics of Fe-Cr-Co-Si alloy specimens processed by thermomagnetic treatments

Popis výsledku anglicky

Fe-Cr-Co magnets getting research focus due to the rapid increase of magnet demand, especially for super-speed motors owing to their remanence values equivalent to that of NdFeB super magnets. In this work, the magnetic characteristics in Fe-Cr-Co-Si alloy samples were induced by processing through isothermal thermomagnetic and step aging treatments, and then, the samples were investigated for thermal effect on magnetic characteristics. The effects of an increase in temperature on the remanence, coercivity and energy product were measured using a BH-Curve tracer. The specimens were prepared from the thermomagnetically processed and aged alloy bricks. Demagnetisation curves were measured at temperatures ranging from 20 degrees C to 400 degrees C, and the results were also analysed for thermal variation coefficients. A decline in magnetic properties with increasing temperature was noted. At 400 degrees C, the magnetic induction is reduced by 0.03%, the coercivity by 0.018% and the energy product decreased by 0.12% per kelvin.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Materials Technology

ISSN

1066-7857

e-ISSN

1753-5557

Svazek periodika

40

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

nestránkováno

Kód UT WoS článku

001627510700001

EID výsledku v databázi Scopus

2-s2.0-105023836825