Wear resistant CoCrFeMnNi0.8V High Entropy Alloy with Multi Length-Scale Hierarchical Microstructure

S. Gonzalez; A. K. Sfikas; Spyros Kamnis; Carlos Garay; A. Hurtado-Macias; R. Martínez-Sánchez

doi:10.1016/j.matlet.2022.133504

Wear resistant CoCrFeMnNi0.8V High Entropy Alloy with Multi Length-Scale Hierarchical Microstructure

S. Gonzalez^*, A. K. Sfikas, Spyros Kamnis, Carlos Garay, A. Hurtado-Macias, R. Martínez-Sánchez

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

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Abstract

This work shows a CoCrFeMnNi0.8V high entropy alloy (HEA) with multiple length-scale hierarchical microstructure, obtained upon cooling at ∼ 62.5 K/s, consisting of a dominant globular sigma phase, FCC matrix and V-rich particles. The novel microstructure, never reported before for the CoCrFeMnNiV system, results in about a fourfold and sixfold increase of hardness and wear resistance, respectively, compared to that of CoCrFeMnNi alloy.

Original language	English
Article number	133504
Pages (from-to)	1-4
Number of pages	4
Journal	Materials Letters
Volume	331
Early online date	14 Nov 2022
DOIs	https://doi.org/10.1016/j.matlet.2022.133504
Publication status	Published - 15 Jan 2023

Keywords

Metal and alloys
Indentation and hardness
Wear and tribology
Solidification

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10.1016/j.matlet.2022.133504Licence: CC BY

1-s2.0-S0167577X22018596-mainAccepted author manuscript, 1.88 MBLicence: CC BY
1-s2.0-S0167577X22018596-mainFinal published version, 3.93 MBLicence: CC BY

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title = "Wear resistant CoCrFeMnNi0.8V High Entropy Alloy with Multi Length-Scale Hierarchical Microstructure",

abstract = "This work shows a CoCrFeMnNi0.8V high entropy alloy (HEA) with multiple length-scale hierarchical microstructure, obtained upon cooling at ∼ 62.5 K/s, consisting of a dominant globular sigma phase, FCC matrix and V-rich particles. The novel microstructure, never reported before for the CoCrFeMnNiV system, results in about a fourfold and sixfold increase of hardness and wear resistance, respectively, compared to that of CoCrFeMnNi alloy.",

keywords = "Metal and alloys, Indentation and hardness, Wear and tribology, Solidification",

author = "S. Gonzalez and Sfikas, \{A. K.\} and Spyros Kamnis and Carlos Garay and A. Hurtado-Macias and R. Mart{\'i}nez-S{\'a}nchez",

note = "Funding information: The authors would like to acknowledge the support from the UK Research \& Innovation (UKRI-IUK) national funding agency. Project Grant: 53662 {\textquoteleft}Design of High-Entropy Superalloys Using a Hybrid Experimental-Based Machine Learning Approach: Steel Sector Application{\textquoteright}.",

year = "2023",

month = jan,

day = "15",

doi = "10.1016/j.matlet.2022.133504",

language = "English",

volume = "331",

pages = "1--4",

journal = "Materials Letters",

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TY - JOUR

T1 - Wear resistant CoCrFeMnNi0.8V High Entropy Alloy with Multi Length-Scale Hierarchical Microstructure

AU - Gonzalez, S.

AU - Sfikas, A. K.

AU - Kamnis, Spyros

AU - Garay, Carlos

AU - Hurtado-Macias, A.

AU - Martínez-Sánchez, R.

N1 - Funding information: The authors would like to acknowledge the support from the UK Research & Innovation (UKRI-IUK) national funding agency. Project Grant: 53662 ‘Design of High-Entropy Superalloys Using a Hybrid Experimental-Based Machine Learning Approach: Steel Sector Application’.

PY - 2023/1/15

Y1 - 2023/1/15

N2 - This work shows a CoCrFeMnNi0.8V high entropy alloy (HEA) with multiple length-scale hierarchical microstructure, obtained upon cooling at ∼ 62.5 K/s, consisting of a dominant globular sigma phase, FCC matrix and V-rich particles. The novel microstructure, never reported before for the CoCrFeMnNiV system, results in about a fourfold and sixfold increase of hardness and wear resistance, respectively, compared to that of CoCrFeMnNi alloy.

AB - This work shows a CoCrFeMnNi0.8V high entropy alloy (HEA) with multiple length-scale hierarchical microstructure, obtained upon cooling at ∼ 62.5 K/s, consisting of a dominant globular sigma phase, FCC matrix and V-rich particles. The novel microstructure, never reported before for the CoCrFeMnNiV system, results in about a fourfold and sixfold increase of hardness and wear resistance, respectively, compared to that of CoCrFeMnNi alloy.

KW - Metal and alloys

KW - Indentation and hardness

KW - Wear and tribology

KW - Solidification

UR - https://www.scopus.com/pages/publications/85142184794

U2 - 10.1016/j.matlet.2022.133504

DO - 10.1016/j.matlet.2022.133504

M3 - Article

SN - 0167-577X

VL - 331

SP - 1

EP - 4

JO - Materials Letters

JF - Materials Letters

M1 - 133504

ER -

Wear resistant CoCrFeMnNi0.8V High Entropy Alloy with Multi Length-Scale Hierarchical Microstructure

Abstract

Keywords

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