Tribological behavior of MoS2–Sb2O3-annealed nanodiamond coating on PEO-LST treated Ti6Al4V

Yanfei Liu; Zhikai Fan; Shengtao Yu; Ruize Zhang; Xiangyu Ge; Wenzhong Wang

doi:10.1016/j.wear.2024.205489

Tribological behavior of MoS₂–Sb₂O₃-annealed nanodiamond coating on PEO-LST treated Ti6Al4V

Yanfei Liu^*, Zhikai Fan, Shengtao Yu, Ruize Zhang, Xiangyu Ge^*, Wenzhong Wang

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

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

Abstract

MoS₂–Sb₂O₃ coating is commonly used as solid lubricant for titanium alloys, but the wear-resistance performance is still limited. Core-shell annealed nanodiamond (AND) particle is used as reinforcement for MoS₂–Sb₂O₃ coating on Ti6Al4V substrate treated by plasma electrolytic oxidation (PEO) and laser surface texturing (LST). The incorporation of AND particles into the MoS₂–Sb₂O₃ coating results in a 39 % decrease in friction and significantly reduces wear on the composite coating. Structural transformation of AND particles to amorphous carbon and graphitic structure promotes the densification of top-layer coating, enhancing lubrication and wear-resistance. Change of contact stress by PEO-LST promotes the formation of dense tribofilm and re-orientation of MoS₂. This study has implications for the development of solid lubrication coatings for aerospace applications through functional nanomaterials and targeted designed surfaces.

Original language	English
Article number	205489
Journal	Wear
Volume	554-555
DOIs	https://doi.org/10.1016/j.wear.2024.205489
Publication status	Published - 15 Sept 2024

Keywords

Laser surface texture
Plasma electrolytic oxidation
Solid lubrication
Titanium alloy

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title = "Tribological behavior of MoS2–Sb2O3-annealed nanodiamond coating on PEO-LST treated Ti6Al4V",

abstract = "MoS2–Sb2O3 coating is commonly used as solid lubricant for titanium alloys, but the wear-resistance performance is still limited. Core-shell annealed nanodiamond (AND) particle is used as reinforcement for MoS2–Sb2O3 coating on Ti6Al4V substrate treated by plasma electrolytic oxidation (PEO) and laser surface texturing (LST). The incorporation of AND particles into the MoS2–Sb2O3 coating results in a 39 % decrease in friction and significantly reduces wear on the composite coating. Structural transformation of AND particles to amorphous carbon and graphitic structure promotes the densification of top-layer coating, enhancing lubrication and wear-resistance. Change of contact stress by PEO-LST promotes the formation of dense tribofilm and re-orientation of MoS2. This study has implications for the development of solid lubrication coatings for aerospace applications through functional nanomaterials and targeted designed surfaces.",

keywords = "Laser surface texture, Plasma electrolytic oxidation, Solid lubrication, Titanium alloy",

author = "Yanfei Liu and Zhikai Fan and Shengtao Yu and Ruize Zhang and Xiangyu Ge and Wenzhong Wang",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2024",

month = sep,

day = "15",

doi = "10.1016/j.wear.2024.205489",

language = "English",

volume = "554-555",

journal = "Wear",

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T1 - Tribological behavior of MoS2–Sb2O3-annealed nanodiamond coating on PEO-LST treated Ti6Al4V

AU - Liu, Yanfei

AU - Fan, Zhikai

AU - Yu, Shengtao

AU - Zhang, Ruize

AU - Ge, Xiangyu

AU - Wang, Wenzhong

PY - 2024/9/15

Y1 - 2024/9/15

N2 - MoS2–Sb2O3 coating is commonly used as solid lubricant for titanium alloys, but the wear-resistance performance is still limited. Core-shell annealed nanodiamond (AND) particle is used as reinforcement for MoS2–Sb2O3 coating on Ti6Al4V substrate treated by plasma electrolytic oxidation (PEO) and laser surface texturing (LST). The incorporation of AND particles into the MoS2–Sb2O3 coating results in a 39 % decrease in friction and significantly reduces wear on the composite coating. Structural transformation of AND particles to amorphous carbon and graphitic structure promotes the densification of top-layer coating, enhancing lubrication and wear-resistance. Change of contact stress by PEO-LST promotes the formation of dense tribofilm and re-orientation of MoS2. This study has implications for the development of solid lubrication coatings for aerospace applications through functional nanomaterials and targeted designed surfaces.

AB - MoS2–Sb2O3 coating is commonly used as solid lubricant for titanium alloys, but the wear-resistance performance is still limited. Core-shell annealed nanodiamond (AND) particle is used as reinforcement for MoS2–Sb2O3 coating on Ti6Al4V substrate treated by plasma electrolytic oxidation (PEO) and laser surface texturing (LST). The incorporation of AND particles into the MoS2–Sb2O3 coating results in a 39 % decrease in friction and significantly reduces wear on the composite coating. Structural transformation of AND particles to amorphous carbon and graphitic structure promotes the densification of top-layer coating, enhancing lubrication and wear-resistance. Change of contact stress by PEO-LST promotes the formation of dense tribofilm and re-orientation of MoS2. This study has implications for the development of solid lubrication coatings for aerospace applications through functional nanomaterials and targeted designed surfaces.

KW - Laser surface texture

KW - Plasma electrolytic oxidation

KW - Solid lubrication

KW - Titanium alloy

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U2 - 10.1016/j.wear.2024.205489

DO - 10.1016/j.wear.2024.205489

M3 - Article

AN - SCOPUS:85198339466

SN - 0043-1648

VL - 554-555

JO - Wear

JF - Wear

M1 - 205489

ER -

Tribological behavior of MoS₂–Sb₂O₃-annealed nanodiamond coating on PEO-LST treated Ti6Al4V

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Keywords

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