Effect of cold spray deposition parameters on wear performance of CrMnFeCoNi high entropy alloy

Bemechal Tsegaye Mengiste; Ali Arab; Pengwan Chen; Jing Xie

doi:10.1016/j.triboint.2024.110465

Effect of cold spray deposition parameters on wear performance of CrMnFeCoNi high entropy alloy

Bemechal Tsegaye Mengiste, Ali Arab^*, Pengwan Chen, Jing Xie^*

^*Corresponding author for this work

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

Abstract

The wear-resistance performance of CrMnFeCoNi high entropy alloy (HEA) is low due to its ductile behavior. In this study, we investigate high wear-resistant CrMnFeCoNi coatings using cold spray additive manufacturing. Different printing conditions were used to achieve the best wear-resistance properties. The printed samples were tested to study the dry sliding wear behavior. The best cold-sprayed coating was attained at a gas temperature of 750 °C and pressure of 4.5 MPA (T7.5P4.5), which revealed the lower coefficient of friction and higher wear resistance compared to the other cold-sprayed samples and was 40 % higher than the cast and ultra-fined CoCrFeMnNi HEA. TEM revealed nano and elongated grains, numerous deformation twins, and high-density dislocations, which facilitate friction and wear rate reduction.

Original language	English
Article number	110465
Journal	Tribology International
Volume	204
DOIs	https://doi.org/10.1016/j.triboint.2024.110465
Publication status	Published - Apr 2025

Keywords

Cold-spray
Deposition parameters
High entropy alloy
Wear-performance

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10.1016/j.triboint.2024.110465

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Mengiste, B. T., Arab, A., Chen, P., & Xie, J. (2025). Effect of cold spray deposition parameters on wear performance of CrMnFeCoNi high entropy alloy. Tribology International, 204, Article 110465. https://doi.org/10.1016/j.triboint.2024.110465

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title = "Effect of cold spray deposition parameters on wear performance of CrMnFeCoNi high entropy alloy",

abstract = "The wear-resistance performance of CrMnFeCoNi high entropy alloy (HEA) is low due to its ductile behavior. In this study, we investigate high wear-resistant CrMnFeCoNi coatings using cold spray additive manufacturing. Different printing conditions were used to achieve the best wear-resistance properties. The printed samples were tested to study the dry sliding wear behavior. The best cold-sprayed coating was attained at a gas temperature of 750 °C and pressure of 4.5 MPA (T7.5P4.5), which revealed the lower coefficient of friction and higher wear resistance compared to the other cold-sprayed samples and was 40 % higher than the cast and ultra-fined CoCrFeMnNi HEA. TEM revealed nano and elongated grains, numerous deformation twins, and high-density dislocations, which facilitate friction and wear rate reduction.",

keywords = "Cold-spray, Deposition parameters, High entropy alloy, Wear-performance",

author = "Mengiste, {Bemechal Tsegaye} and Ali Arab and Pengwan Chen and Jing Xie",

note = "Publisher Copyright: {\textcopyright} 2024",

year = "2025",

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doi = "10.1016/j.triboint.2024.110465",

language = "English",

volume = "204",

journal = "Tribology International",

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AU - Mengiste, Bemechal Tsegaye

AU - Arab, Ali

AU - Chen, Pengwan

AU - Xie, Jing

PY - 2025/4

Y1 - 2025/4

N2 - The wear-resistance performance of CrMnFeCoNi high entropy alloy (HEA) is low due to its ductile behavior. In this study, we investigate high wear-resistant CrMnFeCoNi coatings using cold spray additive manufacturing. Different printing conditions were used to achieve the best wear-resistance properties. The printed samples were tested to study the dry sliding wear behavior. The best cold-sprayed coating was attained at a gas temperature of 750 °C and pressure of 4.5 MPA (T7.5P4.5), which revealed the lower coefficient of friction and higher wear resistance compared to the other cold-sprayed samples and was 40 % higher than the cast and ultra-fined CoCrFeMnNi HEA. TEM revealed nano and elongated grains, numerous deformation twins, and high-density dislocations, which facilitate friction and wear rate reduction.

AB - The wear-resistance performance of CrMnFeCoNi high entropy alloy (HEA) is low due to its ductile behavior. In this study, we investigate high wear-resistant CrMnFeCoNi coatings using cold spray additive manufacturing. Different printing conditions were used to achieve the best wear-resistance properties. The printed samples were tested to study the dry sliding wear behavior. The best cold-sprayed coating was attained at a gas temperature of 750 °C and pressure of 4.5 MPA (T7.5P4.5), which revealed the lower coefficient of friction and higher wear resistance compared to the other cold-sprayed samples and was 40 % higher than the cast and ultra-fined CoCrFeMnNi HEA. TEM revealed nano and elongated grains, numerous deformation twins, and high-density dislocations, which facilitate friction and wear rate reduction.

KW - Cold-spray

KW - Deposition parameters

KW - High entropy alloy

KW - Wear-performance

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VL - 204

JO - Tribology International

JF - Tribology International

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Effect of cold spray deposition parameters on wear performance of CrMnFeCoNi high entropy alloy

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Keywords

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