Mechanism of the intermediary phase formation in Ti-20 wt. % al mixture during pressureless reactive sintering

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43919748" target="_blank" >RIV/60461373:22310/19:43919748 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/1996-1944/12/13/2171/htm" target="_blank" >https://www.mdpi.com/1996-1944/12/13/2171/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma12132171" target="_blank" >10.3390/ma12132171</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mechanism of the intermediary phase formation in Ti-20 wt. % al mixture during pressureless reactive sintering

Popis výsledku v původním jazyce

This work aims to describe the mechanism of intermediary phases formation in TiAl20 (wt. %) alloy composition during reactive sintering. The reaction between titanium and aluminum powders was studied by in situ diffraction and the results were confirmed by annealing at various temperatures. It was found that the Ti2Al5 phase formed preferentially and its formation was detected at 400 °C. So far, this phase has never been found in this alloy composition during reactive sintering processes. Subsequently, the Ti2Al5 phase reacted with the titanium, and the formation of the major phase, Ti3Al, was accompanied by the minor phase, TiAl. Equations of the proposed reactions are presented in this paper and their thermodynamic and kinetic feasibility are supported by Gibbs energies of reaction and reaction enthalpies. © 2019 by the authors.

Název v anglickém jazyce

Mechanism of the intermediary phase formation in Ti-20 wt. % al mixture during pressureless reactive sintering

Popis výsledku anglicky

This work aims to describe the mechanism of intermediary phases formation in TiAl20 (wt. %) alloy composition during reactive sintering. The reaction between titanium and aluminum powders was studied by in situ diffraction and the results were confirmed by annealing at various temperatures. It was found that the Ti2Al5 phase formed preferentially and its formation was detected at 400 °C. So far, this phase has never been found in this alloy composition during reactive sintering processes. Subsequently, the Ti2Al5 phase reacted with the titanium, and the formation of the major phase, Ti3Al, was accompanied by the minor phase, TiAl. Equations of the proposed reactions are presented in this paper and their thermodynamic and kinetic feasibility are supported by Gibbs energies of reaction and reaction enthalpies. © 2019 by the authors.

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

2019

Kód důvěrnosti údajů

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

Název periodika

Materials

ISSN

1996-1944

e-ISSN

—

Svazek periodika

12

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

000477043900135

EID výsledku v databázi Scopus

2-s2.0-85068849463