Microstructure and property of laser clad Ti2SC/TiS self-lubricating anti-wear composite coating on TA2 titanium alloy

Gao Lian Shi; Shao Hua Wu; Xiao Long Lu; Xiu Bo Liu

Microstructure and property of laser clad Ti₂SC/TiS self-lubricating anti-wear composite coating on TA2 titanium alloy

Gao Lian Shi, Shao Hua Wu^*, Xiao Long Lu, Xiu Bo Liu

^*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

The self-lubricating anti-wear composite coating was fabricated by preplacing Ti+TiC+WS₂ mixed powders on TA2 titanium alloy using laser cladding technique. The phase composition, microstructure, microhardness and tribological properties of the coating were investigated. The results indicate that the coating is bonded metallurgically with the substrate and free from holes and cracks. The coating mainly consists of the matrix α-Ti, the reinforcement phases (Ti, W)C_1-x and TiC, and the self-lubricating phases Ti₂SC and TiS. The microhardness of the coating is 1005.4 HV, which is 5 times of that of the substrate. Due to the existence of the self-lubricating phases Ti₂SC and TiS in the coating, the friction coefficient of the coating fluctuates more smoothly comparing to that of the TA2 alloy substrate. Furthermore, the worn surface of the coating presents slightly adhesive wear. The coating shows good anti-wear and friction reducing properties.

Original language	English
Pages (from-to)	198-202
Number of pages	5
Journal	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Volume	37
Issue number	7
Publication status	Published - 25 Jul 2016
Externally published	Yes

Keywords

Laser cladding
Solid lubrication
TA2 titanium alloy
Wear resistant composite coatings

Cite this

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title = "Microstructure and property of laser clad Ti2SC/TiS self-lubricating anti-wear composite coating on TA2 titanium alloy",

abstract = "The self-lubricating anti-wear composite coating was fabricated by preplacing Ti+TiC+WS2 mixed powders on TA2 titanium alloy using laser cladding technique. The phase composition, microstructure, microhardness and tribological properties of the coating were investigated. The results indicate that the coating is bonded metallurgically with the substrate and free from holes and cracks. The coating mainly consists of the matrix α-Ti, the reinforcement phases (Ti, W)C1-x and TiC, and the self-lubricating phases Ti2SC and TiS. The microhardness of the coating is 1005.4 HV, which is 5 times of that of the substrate. Due to the existence of the self-lubricating phases Ti2SC and TiS in the coating, the friction coefficient of the coating fluctuates more smoothly comparing to that of the TA2 alloy substrate. Furthermore, the worn surface of the coating presents slightly adhesive wear. The coating shows good anti-wear and friction reducing properties.",

keywords = "Laser cladding, Solid lubrication, TA2 titanium alloy, Wear resistant composite coatings",

author = "Shi, {Gao Lian} and Wu, {Shao Hua} and Lu, {Xiao Long} and Liu, {Xiu Bo}",

year = "2016",

month = jul,

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language = "English",

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pages = "198--202",

journal = "Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment",

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TY - JOUR

T1 - Microstructure and property of laser clad Ti2SC/TiS self-lubricating anti-wear composite coating on TA2 titanium alloy

AU - Shi, Gao Lian

AU - Wu, Shao Hua

AU - Lu, Xiao Long

AU - Liu, Xiu Bo

PY - 2016/7/25

Y1 - 2016/7/25

N2 - The self-lubricating anti-wear composite coating was fabricated by preplacing Ti+TiC+WS2 mixed powders on TA2 titanium alloy using laser cladding technique. The phase composition, microstructure, microhardness and tribological properties of the coating were investigated. The results indicate that the coating is bonded metallurgically with the substrate and free from holes and cracks. The coating mainly consists of the matrix α-Ti, the reinforcement phases (Ti, W)C1-x and TiC, and the self-lubricating phases Ti2SC and TiS. The microhardness of the coating is 1005.4 HV, which is 5 times of that of the substrate. Due to the existence of the self-lubricating phases Ti2SC and TiS in the coating, the friction coefficient of the coating fluctuates more smoothly comparing to that of the TA2 alloy substrate. Furthermore, the worn surface of the coating presents slightly adhesive wear. The coating shows good anti-wear and friction reducing properties.

AB - The self-lubricating anti-wear composite coating was fabricated by preplacing Ti+TiC+WS2 mixed powders on TA2 titanium alloy using laser cladding technique. The phase composition, microstructure, microhardness and tribological properties of the coating were investigated. The results indicate that the coating is bonded metallurgically with the substrate and free from holes and cracks. The coating mainly consists of the matrix α-Ti, the reinforcement phases (Ti, W)C1-x and TiC, and the self-lubricating phases Ti2SC and TiS. The microhardness of the coating is 1005.4 HV, which is 5 times of that of the substrate. Due to the existence of the self-lubricating phases Ti2SC and TiS in the coating, the friction coefficient of the coating fluctuates more smoothly comparing to that of the TA2 alloy substrate. Furthermore, the worn surface of the coating presents slightly adhesive wear. The coating shows good anti-wear and friction reducing properties.

KW - Laser cladding

KW - Solid lubrication

KW - TA2 titanium alloy

KW - Wear resistant composite coatings

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M3 - Article

AN - SCOPUS:85008930130

SN - 1009-6264

VL - 37

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EP - 202

JO - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

JF - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

IS - 7

ER -

Microstructure and property of laser clad Ti₂SC/TiS self-lubricating anti-wear composite coating on TA2 titanium alloy

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Keywords

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