Optimizing the Cr and V content in quaternary MAX phase for high-temperature lubricity and wear resistance

Yaqing Xue; Hong Yu; Hongwei Liang; Xiaomei Wang; Conghui Meng; Shiyao Lei; Haochen Wang; Long Wang; Cheng Feng Du

doi:10.1016/j.triboint.2025.110525

Optimizing the Cr and V content in quaternary MAX phase for high-temperature lubricity and wear resistance

Yaqing Xue, Hong Yu, Hongwei Liang, Xiaomei Wang, Conghui Meng, Shiyao Lei, Haochen Wang, Long Wang, Cheng Feng Du

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

Abstract

The MAX phase ceramics are one of the most promising solid lubricants for high-temperature (HT) conditions. Herein, two new quaternary MAXs with regulatable transition-metal constituents (Cr₁Ti_0.75Mo_0.75V_0.5AlC₂ and Cr_1.25Ti_0.75Mo_0.75V_0.25AlC₂) are synthesized based on an high-entropy (HE) analogue. Their tribological properties against the Si₃N₄ tribocouple in a wide temperature up to 800 ºC in the air are systematically studied, the impacts of the Cr and V contents on lubricity and anti-wear performance of the Cr-Ti-Mo-V MAXs are illuminated as well. At an extreme operating temperature of 800 °C, Cr_1.25Ti_0.75Mo_0.75V_0.25AlC₂ presents excellent self-lubrication performance with a mean COF of 0.20 and a mean wear rate as low as 3.6 × 10⁻⁷ mm³ N⁻¹ m⁻¹.

Original language	English
Article number	110525
Journal	Tribology International
Volume	204
DOIs	https://doi.org/10.1016/j.triboint.2025.110525
State	Published - Apr 2025

Keywords

Anti-wear
High-entropy
MAX
Self-lubrication

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10.1016/j.triboint.2025.110525

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title = "Optimizing the Cr and V content in quaternary MAX phase for high-temperature lubricity and wear resistance",

abstract = "The MAX phase ceramics are one of the most promising solid lubricants for high-temperature (HT) conditions. Herein, two new quaternary MAXs with regulatable transition-metal constituents (Cr1Ti0.75Mo0.75V0.5AlC2 and Cr1.25Ti0.75Mo0.75V0.25AlC2) are synthesized based on an high-entropy (HE) analogue. Their tribological properties against the Si3N4 tribocouple in a wide temperature up to 800 ºC in the air are systematically studied, the impacts of the Cr and V contents on lubricity and anti-wear performance of the Cr-Ti-Mo-V MAXs are illuminated as well. At an extreme operating temperature of 800 °C, Cr1.25Ti0.75Mo0.75V0.25AlC2 presents excellent self-lubrication performance with a mean COF of 0.20 and a mean wear rate as low as 3.6 × 10−7 mm3 N−1 m−1.",

keywords = "Anti-wear, High-entropy, MAX, Self-lubrication",

author = "Yaqing Xue and Hong Yu and Hongwei Liang and Xiaomei Wang and Conghui Meng and Shiyao Lei and Haochen Wang and Long Wang and Du, {Cheng Feng}",

note = "Publisher Copyright: {\textcopyright} 2025 Elsevier Ltd",

year = "2025",

month = apr,

doi = "10.1016/j.triboint.2025.110525",

language = "英语",

volume = "204",

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T1 - Optimizing the Cr and V content in quaternary MAX phase for high-temperature lubricity and wear resistance

AU - Xue, Yaqing

AU - Yu, Hong

AU - Liang, Hongwei

AU - Wang, Xiaomei

AU - Meng, Conghui

AU - Lei, Shiyao

AU - Wang, Haochen

AU - Wang, Long

AU - Du, Cheng Feng

PY - 2025/4

Y1 - 2025/4

N2 - The MAX phase ceramics are one of the most promising solid lubricants for high-temperature (HT) conditions. Herein, two new quaternary MAXs with regulatable transition-metal constituents (Cr1Ti0.75Mo0.75V0.5AlC2 and Cr1.25Ti0.75Mo0.75V0.25AlC2) are synthesized based on an high-entropy (HE) analogue. Their tribological properties against the Si3N4 tribocouple in a wide temperature up to 800 ºC in the air are systematically studied, the impacts of the Cr and V contents on lubricity and anti-wear performance of the Cr-Ti-Mo-V MAXs are illuminated as well. At an extreme operating temperature of 800 °C, Cr1.25Ti0.75Mo0.75V0.25AlC2 presents excellent self-lubrication performance with a mean COF of 0.20 and a mean wear rate as low as 3.6 × 10−7 mm3 N−1 m−1.

AB - The MAX phase ceramics are one of the most promising solid lubricants for high-temperature (HT) conditions. Herein, two new quaternary MAXs with regulatable transition-metal constituents (Cr1Ti0.75Mo0.75V0.5AlC2 and Cr1.25Ti0.75Mo0.75V0.25AlC2) are synthesized based on an high-entropy (HE) analogue. Their tribological properties against the Si3N4 tribocouple in a wide temperature up to 800 ºC in the air are systematically studied, the impacts of the Cr and V contents on lubricity and anti-wear performance of the Cr-Ti-Mo-V MAXs are illuminated as well. At an extreme operating temperature of 800 °C, Cr1.25Ti0.75Mo0.75V0.25AlC2 presents excellent self-lubrication performance with a mean COF of 0.20 and a mean wear rate as low as 3.6 × 10−7 mm3 N−1 m−1.

KW - Anti-wear

KW - High-entropy

KW - MAX

KW - Self-lubrication

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U2 - 10.1016/j.triboint.2025.110525

DO - 10.1016/j.triboint.2025.110525

M3 - 文章

AN - SCOPUS:85215241295

SN - 0301-679X

VL - 204

JO - Tribology International

JF - Tribology International

M1 - 110525

ER -

Optimizing the Cr and V content in quaternary MAX phase for high-temperature lubricity and wear resistance

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Keywords

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