The Effect of Heat Treatment on the Structure And High - Temperature Strength of Fe3Al - Based Iron Aluminide Doped by Carbona nd Carbide-forming Element

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F20%3A00007695" target="_blank" >RIV/46747885:24210/20:00007695 - isvavai.cz</a>

Result on the web

<a href="https://iopscience.iop.org/article/10.1088/1757-899X/723/1/012030/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/723/1/012030/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/723/1/012030" target="_blank" >10.1088/1757-899X/723/1/012030</a>

Result language

angličtina

Original language name

The Effect of Heat Treatment on the Structure And High - Temperature Strength of Fe3Al - Based Iron Aluminide Doped by Carbona nd Carbide-forming Element

Original language description

A structural study as well as the determination of ó0.2 compression yield stress at high temperatures have been performed on the Fe3Al-based iron aluminide doped by Nb (5 at. %) and C (1.5 at. %). The carbon occurrence leads to the formation of three-phase structure. Fe3Al matrix, niobium carbides and (Fe, Al)2Nb Laves phase were observed in the structure of investigated alloys. Precipitates were inhomogeneously distributed in as cast state alloy. The annealing at 1000 °C for 50 hrs. leads to more homogenously distribution of secondary phase particles and also to refinement of grain size. The strengthening mechanism of material at high temperatures was detected as a combination of strengthening by incoherent precipitates (NbC and Laves phase) and a solid solution hardening by Nb atoms. Effect of two reinforcing mechanisms together with homogeneously precipitate’s distribution increase the values of ó0.2 compression yield stress about 50 MPa in whole measured temperature range (600 – 800 °C) in comparison to similar intermetallic’s system Fe-Al-Zr-C. Phase composition of the alloy was studied by means of scanning electron microscopy (SEM) equipped by energy dispersive X-ray spectrometer (EDX). The electron backscattered diffraction (EBSD) was used for phase verification and grain size visualizatio

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybrid Materials for Hierarchical Structure</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

Article name in the collection

IOP Conference Series: Materials Science and Engineering

ISBN

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ISSN

1757-8981

e-ISSN

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Number of pages

7

Pages from-to

"art. no. 012030"

Publisher name

Institute of Physics Publishing

Place of publication

Bristol

Event location

Plzeň

Event date

Jan 1, 2019

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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