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

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

13 引用（Scopus）

摘要

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.

源语言	英语
文章编号	110525
期刊	Tribology International
卷	204
DOI	https://doi.org/10.1016/j.triboint.2025.110525
出版状态	已出版 - 4月 2025

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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",

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

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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

UR - https://www.scopus.com/pages/publications/85215241295

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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