Structural and Magnetic Study of Fe–Al20–(Ti, Nb) Alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00525459" target="_blank" >RIV/68081723:_____/20:00525459 - isvavai.cz</a>

Výsledek na webu

<a href="http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=32&SID=F5chRzbnlNTjZYczQia&page=1&doc=1" target="_blank" >http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=32&SID=F5chRzbnlNTjZYczQia&page=1&doc=1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12693/APhysPolA.137.835" target="_blank" >10.12693/APhysPolA.137.835</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structural and Magnetic Study of Fe–Al20–(Ti, Nb) Alloys

Popis výsledku v původním jazyce

The present studies are devoted to a set of Fe80Al-based alloys in which Fe atoms are substituted bynTi (5 at.% or 8 at.%), and by 4 at.% Ti + 4 at.% Nb. The Mössbauer and magnetic observations are supported by chemical and structural analysis using scanning and transmission electron microscopy (TEM), and X-ray diffraction. The chemical compositions at all samples turn out to be in good agreement with the nominal one regardless investigated area, but certain differences are detected at sample containing Nb. In the sample modified by Ti+Nb, coherent precipitates uniformly distributed in Fe–Al-based matrix are identified by TEM. Regarding macroscopic magnetic properties the saturation magnetization decreases with increasing Ti content, however, a partial substitution of Ti by Nb evokes an opposite effect, i.e., an increase of the saturation magnetization by 87.5%. All ternary and quaternary alloys yield a higher temperature stability of magnetic properties as compare to the parent Fe80Al20. The Mössbauer results confirm the dominant ferromagnetic phase and the accompanied paramagnetic phase. Their relative amounts depend on the Ti and Nb alloying. The changes in magnetic microstructure are reflected in hyperfine parameters.

Název v anglickém jazyce

Structural and Magnetic Study of Fe–Al20–(Ti, Nb) Alloys

Popis výsledku anglicky

The present studies are devoted to a set of Fe80Al-based alloys in which Fe atoms are substituted bynTi (5 at.% or 8 at.%), and by 4 at.% Ti + 4 at.% Nb. The Mössbauer and magnetic observations are supported by chemical and structural analysis using scanning and transmission electron microscopy (TEM), and X-ray diffraction. The chemical compositions at all samples turn out to be in good agreement with the nominal one regardless investigated area, but certain differences are detected at sample containing Nb. In the sample modified by Ti+Nb, coherent precipitates uniformly distributed in Fe–Al-based matrix are identified by TEM. Regarding macroscopic magnetic properties the saturation magnetization decreases with increasing Ti content, however, a partial substitution of Ti by Nb evokes an opposite effect, i.e., an increase of the saturation magnetization by 87.5%. All ternary and quaternary alloys yield a higher temperature stability of magnetic properties as compare to the parent Fe80Al20. The Mössbauer results confirm the dominant ferromagnetic phase and the accompanied paramagnetic phase. Their relative amounts depend on the Ti and Nb alloying. The changes in magnetic microstructure are reflected in hyperfine parameters.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/GA17-22139S" target="_blank" >GA17-22139S: Teorií vedený vývoj nových superslitin na bázi Fe-Al</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Acta Physica Polonica. A

ISSN

0587-4246

e-ISSN

—

Svazek periodika

137

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

4

Strana od-do

835-838

Kód UT WoS článku

000558676100078

EID výsledku v databázi Scopus

2-s2.0-85087995301