Influence of different introduction modes of metal Ag into plasma sprayed Al2O3 coating on tribological properties

Li, Rongze; Zhao, Xinqing; Bu, Zhenyu; An, Yulong; Zhou, Huidi; Duan, Wen‐Shan; Chen, Jianmin

doi:10.1016/j.ceramint.2021.12.115

Cited by 13 publications

(3 citation statements)

References 27 publications

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“…According to the results of the EDS analysis of white abrasive particle A in Table 5, the main elements were Si and O, and the atomic ratio was 2:1, presumably the abrasive grains are SiO 2 . This is due to the reaction of Si 3 N 4 on the abrasive balls with water in the air to form SiO 2 during the friction process [53]. In turn, SiO 2 forms abrasive grains during the wear process.…”

Section: The Influence Of Tib2 and Nickel-coated Graphite Content Cha...mentioning

confidence: 99%

Effect of TiB2 Content on Properties of Nickel-Coated Graphite Self-Lubricating Coating Prepared by Laser Cladding

Liu

Pang

2021

Coatings

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To improve the anti-wear and friction-reducing properties of self-lubricating coatings, Ni60/Nickel-coated graphite/TiB2 composite coatings with different contents were prepared by laser cladding. The coating properties were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), energy spectrometer (EDS), electrochemical workstation, micro-Vickers hardness tester, and friction and wear tester. The results showed that with the increase in TiB2 content, the graphite morphology changed from spherical at 0 wt.% TiB2 content to a little black graphite alone at 14 wt.% TiB2 to irregular agglomerates at 22 wt.% TiB2. Furthermore, the hardness of the coatings increased with increasing TiB2 content, and the 63% Ni60 + 15% nickel-coated graphite + 22% TiB2 coating had the highest hardness. TiC and Cr7C3 were generated in the coatings with the addition of nickel-coated graphite, creating a dispersion reinforcement effect, so that the hardness of these coatings was higher than that of the 86% Ni60 + 0% nickel-coated graphite + 14% TiB2 coating without the addition of nickel-coated graphite. In addition, the 71% Ni60 + 15% Ni-coated graphite + 14% TiB2 coating had the lowest friction coefficient, wear loss, and wear volume, thus exhibiting excellent friction reduction and anti-wear properties. The 71% Ni60 + 15% nickel-coated graphite + 14% TiB2 coating had excellent corrosion resistance.

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Section: The Influence Of Tib2 and Nickel-coated Graphite Content Cha...mentioning

confidence: 99%

Effect of TiB2 Content on Properties of Nickel-Coated Graphite Self-Lubricating Coating Prepared by Laser Cladding

Liu

Pang

2021

Coatings

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“…The results indicated that the incorporation of solid lubricants such as BN and MoS 2 led to enhanced tribological characteristics of the samples, particularly when subjected to low-load friction conditions of 5 and 10 N [19]. According to Zhao et al, the synthesis Al 2 O 3 /Ag coating had a reduced wear rate compared to the Al 2 O 3 /Ag coating, attributed to its dense microstructure and superior mechanical characteristics [20]. In their study, Bi et al conducted a systematic investigation into the impact of various solid lubricants, including graphite, Mo, BaF 2 /CaF 2 , Ag, CaF 2 , and MoS 2 , on the frictional behavior of ZrO 2 (Y 2 O 3 ) matrix composites at high temperatures, and their research demonstrated that the combined lubricating effect of low-temperature lubricants, such as Ag, graphite, and MoS 2 , along with high-temperature lubricants like CaF 2 , BaF 2 /CaF 2 , and molybdate, played a significant role in reducing friction and wear across a wide temperature range [21][22][23].…”

Section: Introductionmentioning

confidence: 98%

High-Temperature Friction and Wear Behavior of Nickel-Alloy Matrix Composites with the Addition of Molybdate

Zhen,

Han

et al. 2023

Lubricants

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To improve the tribological characteristics of materials employed in spatial mechanisms, there is a significant requirement to develop solid lubricating composites with superior performance. This study investigates the tribological characteristics of composites consisting of a nickel matrix combined with silver molybdate and barium molybdate. The experimental analysis focuses on evaluating the tribological behaviors of these composites from 25 °C to 800 °C. The findings indicate that the combined application of silver molybdate and barium molybdate resulted in enhanced self-lubricating properties of the composites, particularly at temperatures over 400 °C. The inclusion of both silver molybdate and barium molybdate in the composite resulted in the achievement of a low friction coefficient (0.34–0.5), as well as a wear rate ranging from 0.47 to 1.25 × 10−4 mm3 N−1m−1, within the temperature range of 400 to 800 °C. Furthermore, an analysis was conducted to examine the wear processes of the composites at various sliding temperatures. This analysis was based on the evaluation of the chemical composition and morphologies of the sliding surfaces, which were verified by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and Raman spectroscopy.

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“…Therefore, during recent twenty years, a wide variety of solid lubricating films were produced and design by combining the intrinsic properties of some binary and ternary films which are very hard and resistant to oxidation, with specific elements which diffused up to the surface and formed a low friction tribolayer. Addition of soft metals such as Ag [16][17][18][19][20] and Cu [21][22][23][24][25], was observed to be one of the more efficient solutions to obtain self-lubrication properties at a wide temperature range. Nevertheless, the strong out-diffusion of the lubricious element and its quick depletion from the entire volume of the film only allows low friction behavior for short periods of time, leading after few minutes to the failure of the film [26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Multilayer Mo2n-Ag/Sinx Films for Demanding Applications: Morphology, Structure and Temperature-Cycling Tribological Properties

Zhou

Yang³

et al. 2022

SSRN Journal

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Influence of different introduction modes of metal Ag into plasma sprayed Al2O3 coating on tribological properties

Cited by 13 publications

References 27 publications

Effect of TiB2 Content on Properties of Nickel-Coated Graphite Self-Lubricating Coating Prepared by Laser Cladding

Effect of TiB2 Content on Properties of Nickel-Coated Graphite Self-Lubricating Coating Prepared by Laser Cladding

High-Temperature Friction and Wear Behavior of Nickel-Alloy Matrix Composites with the Addition of Molybdate

Multilayer Mo2n-Ag/Sinx Films for Demanding Applications: Morphology, Structure and Temperature-Cycling Tribological Properties

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