Publication detail

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.

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

7

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"
}