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MORAVČÍK, I. JAN, Č. DE ALMEIDA GOUVÊA, L. ČUPERA, J. GUBÁN, I. DLOUHÝ, I.
Original Title
Nitrogen Interstitial Alloying of CoCrFeMnNi High Entropy Alloy through Reactive Powder Milling
Type
journal article in Web of Science
Language
English
Original Abstract
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
Keywords
metallurgy; interstitial; microstructure; powder technology; multi-principal element alloys
Authors
MORAVČÍK, I.; JAN, Č.; DE ALMEIDA GOUVÊA, L.; ČUPERA, J.; GUBÁN, I.; DLOUHÝ, I.
Released
4. 4. 2019
Publisher
MDPI
Location
Online
ISBN
1099-4300
Periodical
ENTROPY
Year of study
21
Number
4
State
Swiss Confederation
Pages from
1
Pages to
7
Pages count
URL
https://www.mdpi.com/1099-4300/21/4/363
Full text in the Digital Library
http://hdl.handle.net/11012/179550
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", journal="ENTROPY", year="2019", volume="21", number="4", pages="1--7", doi="10.3390/e21040363", issn="1099-4300", url="https://www.mdpi.com/1099-4300/21/4/363" }