Investigation on the tribological performance of D-gun sprayed (FeCrNi)83(TiAl)17 high-entropy alloy-matrix composite coatings in vacuum environment over wide temperature range

Dongsheng Yang; Hanzhi Zhang; Yushan Geng; Rui Zhang; Qichun Sun; Wenyuan Chen; Jun Cheng; Juanjuan Chen; Shengyu Zhu; Peiqing La; Yong Yang

doi:10.1016/j.wear.2026.206533

Investigation on the tribological performance of D-gun sprayed (FeCrNi)₈₃(TiAl)₁₇ high-entropy alloy-matrix composite coatings in vacuum environment over wide temperature range

Dongsheng Yang
, Hanzhi Zhang
, Yushan Geng^*
, Rui Zhang
, Qichun Sun
, Wenyuan Chen
, Jun Cheng
, Juanjuan Chen
, Shengyu Zhu
, Peiqing La^*
, Yong Yang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

High-entropy alloy (HEA) self-lubricating coatings exhibit excellent mechanical properties and stable tribological performance, demonstrating potential applications in satellite solar array drive assemblies and foil air bearings within aerospace propulsion systems. This study utilized detonation spraying to fabricate coatings of (FeCrNi)₈₃(TiAl)₁₇, (FeCrNi)₈₃(TiAl)₁₇-Ag-BaF₂/CaF₂ and (FeCrNi)₈₃(TiAl)₁₇-Ag-BaF₂/CaF₂-Al₂O₃. The (FeCrNi)₈₃(TiAl)₁₇-Ag-BaF₂/CaF₂-Al₂O₃ coating, demonstrated the enhanced mechanical performance (surface hardness of 694.7 HV, cross-sectional hardness ranging from 634.3 to 674.3 HV) and maintained a stable friction interface. This coating demonstrated the ability to form a lubricating film over a broad temperature range in vacuum, effectively protecting the exposed worn surfaces at the contact interface. Compared to the (FeCrNi)₈₃(TiAl)₁₇ coating, the modified coating of (FeCrNi)₈₃(TiAl)₁₇-Ag-BaF₂/CaF₂-Al₂O₃ showed significantly reduced friction coefficient and wear rate under vacuum from room temperature (RT) to 600 °C, stabilizing at 0.26–0.46 and (1.3–3.6) × 10⁻⁵ mm³/(N·m), respectively. Notably, at RT, the wear rate of the (FeCrNi)₈₃(TiAl)₁₇-Ag-BaF₂/CaF₂-Al₂O₃ coating was reduced by a factor of 17 compared to the (FeCrNi)₈₃(TiAl)₁₇ coating. © 2026 Elsevier B.V.

Original language	English
Article number	206533
Number of pages	13
Journal	Wear
Volume	589
Online published	14 Jan 2026
DOIs	https://doi.org/10.1016/j.wear.2026.206533
Publication status	Published - 15 Mar 2026

Funding

This work was supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB 0470303), National Natural Science Foundation of China (52175197 and 52205229), the LICP International Cooperative Scholarship, Major Science and Technology Project of Gansu Province (22ZD6GA008), the CAS “Light of West China” Program (xbzg-zdsys-202317) and Gansu Province Ministry of Education “Significant Cultivation Project of University Research and Innovation Platform” (2024CXPT-02).

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@article{a2d85dfe92254768ab70ff5532ca7b39,

title = "Investigation on the tribological performance of D-gun sprayed (FeCrNi)83(TiAl)17 high-entropy alloy-matrix composite coatings in vacuum environment over wide temperature range",

abstract = "High-entropy alloy (HEA) self-lubricating coatings exhibit excellent mechanical properties and stable tribological performance, demonstrating potential applications in satellite solar array drive assemblies and foil air bearings within aerospace propulsion systems. This study utilized detonation spraying to fabricate coatings of (FeCrNi)83(TiAl)17, (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2 and (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3. The (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3 coating, demonstrated the enhanced mechanical performance (surface hardness of 694.7 HV, cross-sectional hardness ranging from 634.3 to 674.3 HV) and maintained a stable friction interface. This coating demonstrated the ability to form a lubricating film over a broad temperature range in vacuum, effectively protecting the exposed worn surfaces at the contact interface. Compared to the (FeCrNi)83(TiAl)17 coating, the modified coating of (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3 showed significantly reduced friction coefficient and wear rate under vacuum from room temperature (RT) to 600 °C, stabilizing at 0.26–0.46 and (1.3–3.6) × 10−5 mm3/(N·m), respectively. Notably, at RT, the wear rate of the (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3 coating was reduced by a factor of 17 compared to the (FeCrNi)83(TiAl)17 coating. {\textcopyright} 2026 Elsevier B.V.",

author = "Dongsheng Yang and Hanzhi Zhang and Yushan Geng and Rui Zhang and Qichun Sun and Wenyuan Chen and Jun Cheng and Juanjuan Chen and Shengyu Zhu and Peiqing La and Yong Yang",

year = "2026",

month = mar,

day = "15",

doi = "10.1016/j.wear.2026.206533",

language = "English",

volume = "589",

journal = "Wear",

issn = "0043-1648",

publisher = "Elsevier B.V.",

}

Investigation on the tribological performance of D-gun sprayed (FeCrNi)₈₃(TiAl)₁₇ high-entropy alloy-matrix composite coatings in vacuum environment over wide temperature range. / Yang, Dongsheng; Zhang, Hanzhi; Geng, Yushan et al.
In: Wear, Vol. 589, 206533, 15.03.2026.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Investigation on the tribological performance of D-gun sprayed (FeCrNi)83(TiAl)17 high-entropy alloy-matrix composite coatings in vacuum environment over wide temperature range

AU - Yang, Dongsheng

AU - Zhang, Hanzhi

AU - Geng, Yushan

AU - Zhang, Rui

AU - Sun, Qichun

AU - Chen, Wenyuan

AU - Cheng, Jun

AU - Chen, Juanjuan

AU - Zhu, Shengyu

AU - La, Peiqing

AU - Yang, Yong

PY - 2026/3/15

Y1 - 2026/3/15

N2 - High-entropy alloy (HEA) self-lubricating coatings exhibit excellent mechanical properties and stable tribological performance, demonstrating potential applications in satellite solar array drive assemblies and foil air bearings within aerospace propulsion systems. This study utilized detonation spraying to fabricate coatings of (FeCrNi)83(TiAl)17, (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2 and (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3. The (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3 coating, demonstrated the enhanced mechanical performance (surface hardness of 694.7 HV, cross-sectional hardness ranging from 634.3 to 674.3 HV) and maintained a stable friction interface. This coating demonstrated the ability to form a lubricating film over a broad temperature range in vacuum, effectively protecting the exposed worn surfaces at the contact interface. Compared to the (FeCrNi)83(TiAl)17 coating, the modified coating of (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3 showed significantly reduced friction coefficient and wear rate under vacuum from room temperature (RT) to 600 °C, stabilizing at 0.26–0.46 and (1.3–3.6) × 10−5 mm3/(N·m), respectively. Notably, at RT, the wear rate of the (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3 coating was reduced by a factor of 17 compared to the (FeCrNi)83(TiAl)17 coating. © 2026 Elsevier B.V.

AB - High-entropy alloy (HEA) self-lubricating coatings exhibit excellent mechanical properties and stable tribological performance, demonstrating potential applications in satellite solar array drive assemblies and foil air bearings within aerospace propulsion systems. This study utilized detonation spraying to fabricate coatings of (FeCrNi)83(TiAl)17, (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2 and (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3. The (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3 coating, demonstrated the enhanced mechanical performance (surface hardness of 694.7 HV, cross-sectional hardness ranging from 634.3 to 674.3 HV) and maintained a stable friction interface. This coating demonstrated the ability to form a lubricating film over a broad temperature range in vacuum, effectively protecting the exposed worn surfaces at the contact interface. Compared to the (FeCrNi)83(TiAl)17 coating, the modified coating of (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3 showed significantly reduced friction coefficient and wear rate under vacuum from room temperature (RT) to 600 °C, stabilizing at 0.26–0.46 and (1.3–3.6) × 10−5 mm3/(N·m), respectively. Notably, at RT, the wear rate of the (FeCrNi)83(TiAl)17-Ag-BaF2/CaF2-Al2O3 coating was reduced by a factor of 17 compared to the (FeCrNi)83(TiAl)17 coating. © 2026 Elsevier B.V.

UR - https://www.scopus.com/pages/publications/105027636037

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-105027636037&origin=recordpage

U2 - 10.1016/j.wear.2026.206533

DO - 10.1016/j.wear.2026.206533

M3 - RGC 21 - Publication in refereed journal

SN - 0043-1648

VL - 589

JO - Wear

JF - Wear

M1 - 206533

ER -