Tribological behavior and mechanism of self-lubricating wear-resistant composite coatings fabricated by one-step plasma electrolytic oxidation

Yin, Bing; Peng, Zenghui; Liang, Jun; Jin, Kongjie; Zhu, Shengyu; Yang, Jun; Qiao, Zhuhui

doi:10.1016/j.triboint.2016.01.020

Cited by 60 publications

(17 citation statements)

References 21 publications

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“…However, Al and its alloys are susceptible to be corroded both in the acidic and the alkaline environments, which is also a fatal shortcoming for its natural oxide film. Moreover, the poor wear resistance limits their large-scale applications [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Wear and Corrosion Resistance of Plasma Electrolytic Oxidation Coatings on 6061 Al Alloy in Electrolytes with Aluminate and Phosphate

Peng

Liu

et al. 2021

Materials

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Phosphate and aluminate electrolytes were used to prepare plasma electrolytic oxidation (PEO) coatings on 6061 aluminum alloy. The surface and cross-section microstructure, element distribution, and phase composition of the PEO coatings were characterized by SEM, EDS, XPS, and XRD. The friction and wear properties were evaluated by pin-on-disk sliding tests under dry conditions. The corrosion resistance of PEO coatings was investigated by electrochemical corrosion and salt spray tests in acidic environments. It was found that the PEO coatings prepared from both phosphate and aluminate electrolytes were mainly composed of α-Al2O3 and γ-Al2O3. The results demonstrate that a bi-layer coating is formed in the phosphate electrolyte, and a single-layered dense alumina coating with a hardness of 1300 HV is realizable in the aluminate electrolyte. The aluminate PEO coating had a lower wear rate than the phosphate PEO coating. However, the phosphate PEO coating showed a better corrosion resistance in acidic environment, which is mainly attributed to the presence of an amorphous P element at the substrate/coating interface.

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Section: Introductionmentioning

confidence: 99%

Wear and Corrosion Resistance of Plasma Electrolytic Oxidation Coatings on 6061 Al Alloy in Electrolytes with Aluminate and Phosphate

Peng

Liu

et al. 2021

Materials

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“…Thus, it can be concluded that NbSe 2 was the predominant phase in the worn surface, and the presence of NbSe 2 was responsible for the improvement of tribological properties [23,24,25,26,27]. However, Ni could not be detected by the micro-Raman, meaning that it could not be observed on the worn surface.…”

Section: Resultsmentioning

confidence: 99%

Fabrication and Tribological Properties of Copper Matrix Solid Self-Lubricant Composites Reinforced with Ni/NbSe2 Composites

Zhang

Chu

2019

Materials

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This paper presents a facile and effective method for preparing Ni/NbSe2 composites in order to improve the wettability of NbSe2 and copper matrix, which is helpful in enhancing the friction-reducing and anti-wear properties of copper-based composites. The powder metallurgy (P/M) technique was used to fabricate copper-based composites with different weight fractions of Ni/NbSe2, and tribological properties of composites were evaluated by using a ball-on-disk friction-and-wear tester. Results indicated that tribological properties of copper-based composites were improved by the addition of Ni/NbSe2. In particular, copper-based composites containing 15 wt.% Ni/NbSe2 showed the lowest friction coefficient (0.16) and wear rate (4.1 × 10−5 mm3·N−1·m−1) among all composites.

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“…The coating with high content of MoS 2 particles is prone to appear plastic deformation and partial exfoliation. Moreover, wear debris formed by the roughness and shedding of contact surface could aggravate the wear, consuming much deformation energy thus increasing the friction coefficient …”

Section: Resultsmentioning

confidence: 99%

Microstructure, friction, and wear properties of Ni‐Al₂O₃‐MoS₂ composite coatings

Wang

Sun

Wang

et al. 2017

Int J Applied Ceramic Tech

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Ni‐Al2O3‐MoS2 composite coatings were prepared on the surface of aluminum alloy substrates by an integrative method of electrophoresis and electrodeposition from the electrolytic solution with different MoS2 concentrations. The surface morphology and compositions of the coatings were studied by scanning electron microscopy equipped with an energy dispersive spectroscope. The microindentation hardness and tribological properties of the coatings were tested using a Vickers hardness tester and friction performance tester in dry sliding condition, respectively. Results showed that the cross‐sections of the coatings exhibited smooth morphology and uniform distribution of the compositions. Al2O3 and MoS2 particles were uniformly dispersed in the Ni matrix. The coatings were sufficiently adhered on the aluminum alloy substrates. The addition of MoS2 particles can significantly improve the wear resistance of the coatings. When the MoS2 concentration is 1.0 g/L, the Ni‐Al2O3‐MoS2 coatings exhibit superior mechanical properties.

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Tribological behavior and mechanism of self-lubricating wear-resistant composite coatings fabricated by one-step plasma electrolytic oxidation

Cited by 60 publications

References 21 publications

Wear and Corrosion Resistance of Plasma Electrolytic Oxidation Coatings on 6061 Al Alloy in Electrolytes with Aluminate and Phosphate

Wear and Corrosion Resistance of Plasma Electrolytic Oxidation Coatings on 6061 Al Alloy in Electrolytes with Aluminate and Phosphate

Fabrication and Tribological Properties of Copper Matrix Solid Self-Lubricant Composites Reinforced with Ni/NbSe2 Composites

Microstructure, friction, and wear properties of Ni‐Al₂O₃‐MoS₂ composite coatings

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Tribological behavior and mechanism of self-lubricating wear-resistant composite coatings fabricated by one-step plasma electrolytic oxidation

Cited by 60 publications

References 21 publications

Wear and Corrosion Resistance of Plasma Electrolytic Oxidation Coatings on 6061 Al Alloy in Electrolytes with Aluminate and Phosphate

Wear and Corrosion Resistance of Plasma Electrolytic Oxidation Coatings on 6061 Al Alloy in Electrolytes with Aluminate and Phosphate

Fabrication and Tribological Properties of Copper Matrix Solid Self-Lubricant Composites Reinforced with Ni/NbSe2 Composites

Microstructure, friction, and wear properties of Ni‐Al2O3‐MoS2 composite coatings

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Microstructure, friction, and wear properties of Ni‐Al₂O₃‐MoS₂ composite coatings