Detail publikace
Nitrogen Interstitial Alloying of CoCrFeMnNi High Entropy Alloy through Reactive Powder Milling
MORAVČÍK, I. JAN, Č. DE ALMEIDA GOUVÊA, L. ČUPERA, J. GUBÁN, I. DLOUHÝ, I.
Anglický název
Nitrogen Interstitial Alloying of CoCrFeMnNi High Entropy Alloy through Reactive Powder Milling
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
The present work is focused on the synthesis of CoCrFeMnNi high entropy alloy (HEA) interstitially alloyed with nitrogen via powder metallurgy routes. Using a simple method, nitrogen was introduced to the HEA from the protective N2 gas atmosphere during mechanical alloying (MA) processing. The lattice parameter and amount of nitrogen in HEA were observed to be linearly proportional to the milling duration. The limited solubility of nitrogen in the main face centered cubic (FCC) phase resulted in the in-situ formation of nitrides and, accordingly, significant increase in the hardness values. It has been shown that fabrication of such nitrogen-doped HEA bulk materials can be conveniently achieved by a simple combination of MA + spark plasma sintering processes, without the need for adding nitrogen from other sources
Anglický abstrakt
The present work is focused on the synthesis of CoCrFeMnNi high entropy alloy (HEA) interstitially alloyed with nitrogen via powder metallurgy routes. Using a simple method, nitrogen was introduced to the HEA from the protective N2 gas atmosphere during mechanical alloying (MA) processing. The lattice parameter and amount of nitrogen in HEA were observed to be linearly proportional to the milling duration. The limited solubility of nitrogen in the main face centered cubic (FCC) phase resulted in the in-situ formation of nitrides and, accordingly, significant increase in the hardness values. It has been shown that fabrication of such nitrogen-doped HEA bulk materials can be conveniently achieved by a simple combination of MA + spark plasma sintering processes, without the need for adding nitrogen from other sources
Klíčová slova anglicky
metallurgy; interstitial; microstructure; powder technology; multi-principal element alloys
Vydáno
04.04.2019
Nakladatel
MDPI
Místo
Online
ISSN
1099-4300
Ročník
21
Číslo
4
Strany od–do
1–7
Počet stran
7
BIBTEX
@article{BUT156490,
author="Igor {Moravčík} and Jan {Čížek} and Larissa {Moravčíková de Almeida Gouvea} and Jan {Čupera} and Ivan {Gubán} and Ivo {Dlouhý},
title="Nitrogen Interstitial Alloying of CoCrFeMnNi High Entropy Alloy through Reactive Powder Milling",
year="2019",
volume="21",
number="4",
month="April",
pages="1--7",
publisher="MDPI",
address="Online",
issn="1099-4300"
}