Thermal analysis of FeAl intermetallic compound sintered at heating rate of 300 degrees C/min

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43921125" target="_blank" >RIV/60461373:22310/20:43921125 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0925838819342240?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925838819342240?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2019.152978" target="_blank" >10.1016/j.jallcom.2019.152978</a>

Result language

angličtina

Original language name

Thermal analysis of FeAl intermetallic compound sintered at heating rate of 300 degrees C/min

Original language description

Only differential thermal analysis at low heating rates or mathematical modelling have been used to determine Fe-Al phase formation reactions up to this day. In this work, Self-propagating High-temperature Synthesis high-speed reaction was analysed during extremely high heating rates using scanning electron microscope with energy dispersive spectroscopy and X-ray diffraction in this work. Samples, whose chemical composition corresponded to FeAl phase, were sintered at heating rate of 300 degrees C/min, the highest heating rate applied so far. The course of heating was observed by optical pyrometer with sampling rate of 0.02 s. Pre-combustion peak (diffusion stage) was identified in the alloy prior steep combustion peak corresponding to SHS reaction itself. Accordingly to the temperature development, a FeAl phase formed initially allowing to react with aluminium and forming Fe2Al5 phase. Furthermore, the later mentioned phase partially reacted with aluminium resulting in a presence of metastable FeAl3 phase. Resulted microstructure was composed of only FeAl phase. This is completely reverse order of phase formation as was presented in previous studies focusing on lower heating rates where Fe2Al5 formed first during diffusion stage followed by the formation of FeAl at SHS reaction. (C) 2019 Elsevier B.V. All rights reserved.

Czech name

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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

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GA17-07559S" target="_blank" >GA17-07559S: Processing of innovative iron-based intermetallics by mechanical alloying and spark plasma sintering</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

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

Name of the periodical

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

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Volume of the periodical

819

Issue of the periodical within the volume

April

Country of publishing house

US - UNITED STATES

Number of pages

4

Pages from-to

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UT code for WoS article

000507378300092

EID of the result in the Scopus database

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