The preferential formation of Ni2Al3, Fe2Al5, and Ti2Al5 phases in aluminide systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00555937" target="_blank" >RIV/68378271:_____/22:00555937 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/22:43924863

Výsledek na webu

<a href="https://doi.org/10.1016/j.matchemphys.2022.125859" target="_blank" >https://doi.org/10.1016/j.matchemphys.2022.125859</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matchemphys.2022.125859" target="_blank" >10.1016/j.matchemphys.2022.125859</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The preferential formation of Ni2Al3, Fe2Al5, and Ti2Al5 phases in aluminide systems

Popis výsledku v původním jazyce

The preferential formation of phases in Ni–Al, Fe–Al, and Ti–Al systems was observed at the interface of solidsolid and solid-liquid phases. It was found that phases already formed at temperatures lower than the melting point of aluminum. The Ni2Al3, Fe2Al5 and Ti2Al5 phases formed preferentially in the Ni–Al, Fe–Al and Ti–Al systems, respectively. The favored formation was not associated with thermodynamic assumptions, but was caused by crystal structures of arisen phases. The mentioned phases could form due to the two reasons, (i) similarities of their lattice parameters to lattice parameters of the individual elements (Ni, Fe, Ti, or Al) and (ii) the total volume of its lattice. The lattice volumes of Ni2Al3, Fe2Al5, and Ti2Al5 phases are always smaller than that of NiAl3, FeAl3, and TiAl3 phases. The last listed phases are ordinarily accepted by other authors as the phases, which form preferentially based on thermodynamic data only. This work disproves such claims and shows the reason for preferential phases’ formation.

Název v anglickém jazyce

The preferential formation of Ni2Al3, Fe2Al5, and Ti2Al5 phases in aluminide systems

Popis výsledku anglicky

The preferential formation of phases in Ni–Al, Fe–Al, and Ti–Al systems was observed at the interface of solidsolid and solid-liquid phases. It was found that phases already formed at temperatures lower than the melting point of aluminum. The Ni2Al3, Fe2Al5 and Ti2Al5 phases formed preferentially in the Ni–Al, Fe–Al and Ti–Al systems, respectively. The favored formation was not associated with thermodynamic assumptions, but was caused by crystal structures of arisen phases. The mentioned phases could form due to the two reasons, (i) similarities of their lattice parameters to lattice parameters of the individual elements (Ni, Fe, Ti, or Al) and (ii) the total volume of its lattice. The lattice volumes of Ni2Al3, Fe2Al5, and Ti2Al5 phases are always smaller than that of NiAl3, FeAl3, and TiAl3 phases. The last listed phases are ordinarily accepted by other authors as the phases, which form preferentially based on thermodynamic data only. This work disproves such claims and shows the reason for preferential phases’ formation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Materials Chemistry and Physics

ISSN

0254-0584

e-ISSN

1879-3312

Svazek periodika

280

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

5

Strana od-do

125859

Kód UT WoS článku

000763866700003

EID výsledku v databázi Scopus

2-s2.0-85124502125