Si-DLC films deposited by a novel method equipped with a co-potential auxiliary cathode for anti-corrosion and anti-wear application

Wei, Xianzhe; Shi, Shaomiao; Ning, Chuangming; Lu, Zhibin

doi:10.1016/j.jmst.2021.08.077

Cited by 19 publications

(5 citation statements)

References 57 publications

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“…The wear rates of as-deposited films were calculated by Archard wear equation (W= V F×L ，where W is wear rate, V is wear volume loss, F is normal load, L is total sliding distance.) [27,28]. A schematic diagram of the wear rate is shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

Friction and Wear Properties of Multilayer Films Designed on Tantalum Substrate

Guo

Zheng

Huang

et al. 2022

MSF

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In this paper, a titanium nitride film (TiN) monolayer film was deposited on a pure Tantalum (Ta) substrate with Ti as an intermediate layer by magnetron sputtering technique, and a Ta/Ti/DLC (diamond-like carbon)/Ti/TiN/DLC multilayer film was designed. Raman spectroscopy and scanning electron microscopy were used to observe the film structure and morphology. Friction and wear properties of Ta/Ti/TiN monolayer film and Ta/Ti/DLC/Ti/TiN/DLC multilayer film were analyzed by UMT-3 tester. The results show that the surface of multilayer film is denser and better bonded than TiN monolayer film. Under dry friction conditions, the friction coefficient of TiN monolayer film is stable at about 0.45. In contrast, the friction coefficient of DLC multilayer film remains around 0.15 with very small fluctuation during the whole friction process. This is determined by the inherent characteristics of DLC film, which is composed of sp2-C graphite structure and sp3-C diamond structure. From the analysis of the wear mechanism, the Ta substrate mainly undergoes adhesive wear and abrasive wear, however, the TiN monolayer film and Ta/Ti/DLC/Ti/TiN/DLC multilayer films mainly undergo abrasive wear mechanism. The friction coefficient of TiN monolayer fluctuates more than that of dry friction conditions in the body-liquid environment, and finally stabilize at about 0.5. The friction coefficient of DLC multilayer films does not differ much from those of dry friction conditions. This is because the TiN monolayer film generates a large amount of abrasive chips to fill the scratches in the body fluid environment, accompanied by the peeling and flaking of the compacted abrasive chips, thus the friction coefficient fluctuates greatly. The DLC multilayer films also undergoes graphitization transfer. In addition, the free hanging bonds of DLC film are passivated, which reduces the degree of adhesive wear. In summary, the DLC multilayer film has better biocompatibility, wear resistance, and stronger bonding.

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Section: Methodsmentioning

confidence: 99%

Friction and Wear Properties of Multilayer Films Designed on Tantalum Substrate

Guo

Zheng

Huang

et al. 2022

MSF

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“…In recent years, Zhang's group used an alternating multilayer design of a compressive stress layer (Si-poor layer) and a tensile stress layer (rich-poor layer) to reduce the residual stress in DLC films, thus successfully preparing multilayer thick DLC films exceeding 50 µm in thickness [14]. They also deposited these thick DLC films on the inner surfaces of various materials, including 304 stainless steel pipes, aluminum pipes, and cast iron, with different diameters and shapes, such as straight pipes, bent pipes, and U-shaped pipes [15,16]. After undergoing 480 h and 720 h neutral salt spray tests, the film surfaces displayed no noticeable damage, indicating exceptional corrosion resistance and a prolonged service life [17,18].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Tribological Properties and Corrosion Resistance of Multilayer Si-DLC Films on the Inner Surfaces of N80 Steel Pipes

Wang,

Zhang,

et al. 2024

Coatings

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In order to solve the problem of the corrosion and wear of N80 metal pipelines exposed to corrosive media and abrasive sand during the development of petroleum resources, the proposed solution involves utilizing HC-PECVD technology to deposit a series of multilayer Si-DLC films with varying thicknesses on the inner surfaces of the N80 steel pipes. This investigation systematically explored the microstructure, mechanical properties, tribological features, and corrosion resistance of the multilayer Si-DLC films. Remarkably, after coating the multilayer (Si-DLC)40 film on the inner wall of the N80 tube, the friction coefficient decreased from 0.7~0.75 to 0.2~3, and the wear rate decreased by two orders of magnitude. In addition, the corrosion current decreased by 50%, and the impedance doubled in a 3.5 wt% NaCl solution saturated with CO2. Thus, the multilayer (Si-DLC)40 film on the inner wall of the N80 tube exhibited superior tribological properties and exceptional corrosion resistance. These findings are anticipated to furnish valuable data and technical insights for mitigating corrosion in N80 steel pipes during petroleum exploitation.

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“…Si-incorporated diamond-like carbon (Si-DLC) films have been applied to bearings, drillers, and so on [16,17] due to their outstanding performance, such as anti-abrasion abilities, hightemperature stability, low surface roughness, and exceptional adhesion with the substrates. [16,[18][19][20][21] Besides, Si-DLC films can be an ideal candidate as a triboelectric dielectric material for sensing due to their anti-abrasion abilities and higher electrical output than DLC films [22] Metal-polymer plain bearings (MPPB) have found increasing applications in various types of machinery owing to specific favorable characteristics, such as high load-carrying capacity, the possibility of use in dry friction and boundary conditions, damping ability, etc.…”

Section: Introductionmentioning

confidence: 99%

AI‐Enabled Metal‐Polymer Plain Bearing Based on the Triboelectric Principle

Gao

Sun

et al. 2023

Adv Funct Materials

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With the rapid development of the Internet of Things and artificial intelligence (AI), the requirement for sensing technologies for smart bearings has increased dramatically. The general bearing sensors can only recognize the basic information from temperature or vibration, far from satisfying the self‐diagnosis and self‐maintenance. Recently, self‐powered sensing technologies based on triboelectric nanogenerators have paved a new route for fabricating smart bearings. In this study, the triboelectric principle is applied to a commercial metal‐polymer plain bearing (MPPB) bearing, which can achieve self‐sensing, self‐diagnosis, and self‐maintenance. The geometrical structure of the triboelectric MPPB (T‐MPPB) is designed to balance the output efficiency and external load, and the super durability and load capability are verified. Besides, the mechanism behind the output change trend under boundary and hydrostatic fluid lubrication is revealed for the first time. Furthermore, the deep learning algorithm can classify the lubrication states with highly accurate performance. The proposed T‐MPPB has the potential to achieve self‐maintenance with the lubricating pump according to the lubrication condition classified by the AI. This research not only establishes the feasibility of designing self‐powered smart MPPB but also demonstrates a way for identifying lubrication states, thus achieving self‐diagnosis and self‐maintenance ability by self‐powered sensors.

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Si-DLC films deposited by a novel method equipped with a co-potential auxiliary cathode for anti-corrosion and anti-wear application

Cited by 19 publications

References 57 publications

Friction and Wear Properties of Multilayer Films Designed on Tantalum Substrate

Friction and Wear Properties of Multilayer Films Designed on Tantalum Substrate

Investigation of the Tribological Properties and Corrosion Resistance of Multilayer Si-DLC Films on the Inner Surfaces of N80 Steel Pipes

AI‐Enabled Metal‐Polymer Plain Bearing Based on the Triboelectric Principle

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