Corrosion and tribocorrosion behavior of W doped DLC coating in artificial seawater

Cao, Lei; Liu, Jian; Wan, Yong; Pu, Jibin

doi:10.1016/j.diamond.2020.108019

Cited by 55 publications

(23 citation statements)

References 51 publications

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“…As can be seen in Table 5, the adhesion results obtained in this study are higher than those reported in the references [26,27,66]. On the other hand, similar results of Lc2 were reported in reference [34], with ta-C and WC:C coatings, or in reference [67], showing Lc2 values up to 42 N to W-doped DLCs.…”

Section: Adhesion Testssupporting

confidence: 77%

Comparative Study of Tribomechanical Properties of HiPIMS with Positive Pulses DLC Coatings on Different Tools Steels

et al. 2020

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Diamond-like carbon (DLC) coatings are very interesting due to their extraordinary properties; their excellent wear resistance, very low friction coefficient, great hardness, high elastic modulus or biocompatibility can be highlighted, as can their multifunctionality. Because of this, over recent decades they have been widely used in tribological applications, improving the performance and the useful life of machining tools in an effective way. However, these coatings have a disadvantage compared to other coatings deposited by commercially available techniques—their resultant adhesion is worse than that of other techniques and limits their industrial applications. In this work, tribological results of a scratch test, wear resistance and nanoindentation of tetrahedral amorphous carbon (ta-C) and tungsten carbide:carbon (WC:C) DLC coatings deposited by means of novel high-power impulse magnetron sputtering (HiPIMS) technology with positive pulses are reported. The coatings were deposited in three different tools steels: K360, vanadis 4 and vancron. These tools’ steels are very interesting because of their great and wide industrial applicability. Experimental results showed excellent tribological properties, such as resistance to wear or adhesion, in the two types of DLC coatings.

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Section: Adhesion Testssupporting

confidence: 77%

Comparative Study of Tribomechanical Properties of HiPIMS with Positive Pulses DLC Coatings on Different Tools Steels

et al. 2020

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“…It is clearly seen that COF of ceramic coatings presents an increase with increasing hardness. For traditional lubricating materials, DLC based coatings exhibit good tribocorrosion resistance with low coe cient of friction of 0.036 due to the combination of hardness and toughness [52,53]. However, in this work, superhard yet tough Ti-C-N coatings possess excellent seawater lubrication with ultra-low COF of 0.03.…”

Section: Tribocorrosion Resistancementioning

confidence: 77%

Enhanced Tribocorrosion Resistance of Superhard Ti-C-N Ceramics Coatings

Wang

Liao

et al. 2021

Preprint

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Cubic transition-metal nitride coatings have been regarded as promising candidates for of marine engineering components in seawater environments. However, the excellent seawater lubrication is hard to achieve due to contradictory relations of hardness and toughness, as well as unstable behaviors at sliding contact surface. As discussed in our previous work about the enhanced tribological behaviors of hard yet tough CrN/Si3N4 multilayer coatings[14], superhard yet tough coatings are highly desired to improve wear resistance and durability in aggressive solutions. Here we report Ti-C-N coatings with Ti(C,N) and small sp2-C phases deposited by high power impulse magnetron sputtering exhibit simultaneously superhardness of 40.2 GPa and favourable toughness (without radial cracks in HRC indentations). Superhard yet tough Ti-C-N coatings show excellent seawater-lubricating behaviors with extremely low friction coefficient of 0.03 and smooth wear morphologies in 3.5wt.% NaCl aqueous solution. The enhanced tribocorrosion performance are attributed to superhard yet tough properties resulting in the increased resistance of crack initiation and propagation, which restrains synergistic actions of wear and pitting corrosion. In addition, stable self-lubricating amorphous carbon phase at sliding contact surface reduce friction and wear in seawater.

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“…The presence of MoO 3 (≈908 cm −1 ) and WO 3 was attributed to the tribochemical products formed inside the wear track. By comparison, the D and G bands (≈1345 and ≈1579 cm −1 , respectively) of the carbon‐based materials [ 31,32 ] along with the MoO 3 peak are still visible in the contact area of the steel ball, suggesting that the transfer layer, which mainly contained amorphous carbon and Mo oxide, steadily formed on the contact area. The lack of WS 2 phase in the contact area can possibly be attributed to the poor adhesion between the mainly carbon‐containing transfer layer and the WS 2 phase in the contact area.…”

Section: Resultsmentioning

confidence: 99%

Effects of Mo Single‐Layer Thickness on Microstructure and Tribological Behavior of WS_x/Mo/a‐C/Mo Multilayer Films

Zheng

Wang

Wang³

et al. 2021

Adv Eng Mater

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WS2/a‐C multilayer films exhibit good friction reduction but relatively low hardness and load‐bearing capacity. To further enhance the tribological properties of WS2/a‐C films, Mo layers with different thicknesses are introduced into WSx/a‐C multilayer films to fabricate WSx/Mo/a‐C/Mo multilayer films by magnetron sputtering. The microstructure and tribological properties of the films are characterized by X‐ray diffractometry, scanning electron microscopy, nanoindentation, and ball‐on‐disk tribotesting. The results show that the WSx/Mo/a‐C/Mo multilayer films have better mechanical and tribological properties than WSx/a‐C multilayer films. With increasing Mo single‐layer thickness, the hardness of the multilayer films initially increases and then decreases slightly; moreover, an increased elastic modulus and decreased adhesion are observed. The multilayer film with an Mo single‐layer thickness of 2 nm demonstrates the optimal set of comprehensive properties (i.e., a maximum hardness (H)/elastic modulus (E) ratio of 0.0793, H3/E2 ratio of 0.0812 GPa, binding force of 30.4 N, minimum friction coefficient of 0.187, and wear rate of 1.01 × 10−14 m3 N−1 m−1).

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Corrosion and tribocorrosion behavior of W doped DLC coating in artificial seawater

Cited by 55 publications

References 51 publications

Comparative Study of Tribomechanical Properties of HiPIMS with Positive Pulses DLC Coatings on Different Tools Steels

Comparative Study of Tribomechanical Properties of HiPIMS with Positive Pulses DLC Coatings on Different Tools Steels

Enhanced Tribocorrosion Resistance of Superhard Ti-C-N Ceramics Coatings

Effects of Mo Single‐Layer Thickness on Microstructure and Tribological Behavior of WS_x/Mo/a‐C/Mo Multilayer Films

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Corrosion and tribocorrosion behavior of W doped DLC coating in artificial seawater

Cited by 55 publications

References 51 publications

Comparative Study of Tribomechanical Properties of HiPIMS with Positive Pulses DLC Coatings on Different Tools Steels

Comparative Study of Tribomechanical Properties of HiPIMS with Positive Pulses DLC Coatings on Different Tools Steels

Enhanced Tribocorrosion Resistance of Superhard Ti-C-N Ceramics Coatings

Effects of Mo Single‐Layer Thickness on Microstructure and Tribological Behavior of WSx/Mo/a‐C/Mo Multilayer Films

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Effects of Mo Single‐Layer Thickness on Microstructure and Tribological Behavior of WS_x/Mo/a‐C/Mo Multilayer Films