Effect of mechanical and thermochemical tool steel substrate pre-treatment on diamond-like carbon (DLC) coating durability

Toboła, D.; Liskiewicz, Tomasz; Yang, Liuquan; Khan, Thawhid

doi:10.1016/j.surfcoat.2021.127483

Cited by 21 publications

(11 citation statements)

References 39 publications

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“…In the case of the H 3 / E 2 parameter, the highest value also applies to the sample 136_600_sin (0.105 ± 0.3) and the lowest (0.007 ± 0.006) to the samples 136_450_rec and 68_600_n. The H / E ratio refers to elasticity, and the H 3 / E 2 ratio is usually used to indicate resistance to plastic deformation in a loaded contact . The literature indicates that a high H / E ratio (greater than 0.1) results in high wear resistance .…”

Section: Resultsmentioning

confidence: 99%

Influence of Ultrasound on the Characteristics of CaP Coatings Generated Via the Micro-arc Oxidation Process in Relation to Biomedical Engineering

Makurat-Kasprolewicz,

Wekwejt,

Ronowska

et al. 2024

ACS Biomater. Sci. Eng.

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Over the past decade, bone tissue engineering has been at the core of attention because of an increasing number of implant surgeries. The purpose of this study was to obtain coatings on titanium (Ti) implants with improved properties in terms of biomedical applications and to investigate the effect of ultrasound (US) on these properties during the micro-arc oxidation (MAO) process. The influence of various process parameters, such as time and current density, as well as US mode, on the properties of such coatings was evaluated. Novel porous calcium-phosphate-based coatings were obtained on commercially pure Ti. Their microstructure, chemical composition, topography, wettability, nanomechanical properties, thickness, adhesion to the substrate, and corrosion resistance were analyzed. In addition, cytocompatibility evaluation was checked with the human osteoblasts. The properties of the coatings varied significantly, depending on applied process parameters. The US application during the MAO process contributes to the increase of coating thickness, porosity, roughness, and skewness, as well as augmented calcium incorporation. The most advantageous coating was obtained at a current of 136 mA, time 450 s, and unipolar rectangular US, as it exhibits high porosity, adequate wettability, and beneficial skewness, which enabled increased adhesion and proliferation of osteoblasts during in vitro studies. Finally, the conducted research demonstrated the influence of various UMAO process parameters, which allowed for the selection of appropriate Ti implant modification for specific biomedical utilization.

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Section: Resultsmentioning

confidence: 99%

Influence of Ultrasound on the Characteristics of CaP Coatings Generated Via the Micro-arc Oxidation Process in Relation to Biomedical Engineering

Makurat-Kasprolewicz,

Wekwejt,

Ronowska

et al. 2024

ACS Biomater. Sci. Eng.

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“…Many studies have reported that dual treatment (nitriding + GLC film deposition) can create a layer with a gradient hardness distribution to support GLC films, which can increase film−substrate bonding, stabilize the low COF of GLC films, improve their wear performance, and enhance the load-bearing capacity and fatigue performance of the workpiece. 23,26,27 However, because traditional dual surface treatments need to be performed in multiple steps and facilities, 21,24,25 it is difficult to ensure the reproducibility and control the quality of dual coatings. At the same time, the low preparation efficiency and high production costs of dual coatings limit their large-scale production.…”

Section: Introductionmentioning

confidence: 99%

“…The elemental doping of carbon films, ,− use of interlayers, , optimization of coating parameters, , and pretreatment of substrates − are some of the techniques used to enhance the adhesion strength of single GLC films. Many studies have reported that dual treatment (nitriding + GLC film deposition) can create a layer with a gradient hardness distribution to support GLC films, which can increase film–substrate bonding, stabilize the low COF of GLC films, improve their wear performance, and enhance the load-bearing capacity and fatigue performance of the workpiece. ,, However, because traditional dual surface treatments need to be performed in multiple steps and facilities, ,, it is difficult to ensure the reproducibility and control the quality of dual coatings. At the same time, the low preparation efficiency and high production costs of dual coatings limit their large-scale production.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Growth of High-Performance Graphite-like Carbon Films on a Nitrided Substrate: Experimental Study and First-Principles Calculations

Li,

Sun,

Xie

et al. 2023

ACS Appl. Mater. Interfaces

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This study reports a novel process for the fabrication of highperformance graphite-like carbon (GLC) films on nitrided substrates through successive steps in a plasma nitriding system. Unlike films fabricated via conventional dual treatments (nitriding + film deposition), here-fabricated GLC films were grown on the surface of nitrided steel via a catalytic reaction. A transition zone having a nanocrystalline and amorphous structure was observed at the interface between the nitrided substrate and GLC films, which increased the durability of GLC films because this structure enhanced the adhesion of GLC films on the nitrided substrate, improving resistance to spallation and wear. Experimental study and first-principles calculations showed that the Fe 3 N phase had a stronger catalytic effect on GLC films than the Fe 4 N phase, and GLC films grown on the nitrided layer dominated by Fe 3 N were thicker with stronger adhesion and excellent frictional and wear properties compared with GLC films grown on the nitrided layer dominated by Fe 4 N because of the beneficial structure formed at the interface. This study reports a simple and inexpensive method to fabricate a dual layer containing high-performance GLC films via a catalytic growth and interface matching mechanism.

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“…As reported, proper surface modification of the substrates can effectively improve the adhesion of DLC films. The common surface modification methods include adding transition layer, ion implantation, and sandblasting 25–30 . Less hardness difference is benefit to getting better adhesion.…”

Section: Introductionmentioning

confidence: 99%

“…The common surface modification methods include adding transition layer, ion implantation, and sandblasting. [25][26][27][28][29][30] Less hardness difference is benefit to getting better adhesion. Nitriding treatment can also harden the substrate surface by forming a nitrided layer of about 15 μm to enhance the adhesion.…”

Section: Introductionmentioning

confidence: 99%

The influence of Ti plasma etching pre‐treatment on mechanical properties of DLC film on cemented carbide

Huang

Yuan

et al. 2021

Surface & Interface Analysis

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The pre-treatment of substrate surface had been a key part of DLC film preparation to improve mechanical and tribological properties. Ti plasma etching pre-treatment was investigated in this paper as a new effective surface pre-treatment method to substitute transition layer. This pre-treatment used high-energy Ti plasma to impact substrate surface. Ti plasma etched the substrate to a depth of 407 nm and increased the roughness from 1.36 to 40.39 nm. A trace layer of substrate, together with cobalt, oxides, and other impurities, was removed. Ti plasma broke some top WC crystals and combined with the free carbon ions separating from the substrate. A DLC film was deposited on the etched surface. Compared with DLC films deposited on the untreated substrate and Ti transition layer, the DLC film on the Ti plasma etched substrate had best adhesion strength of 34.14 N. The three DLC films had the same sp 3 bonding carbon content, but Ti plasma etching treatment could promote the formation of sp 3 bonds on the interface of substrate and DLC film. This DLC film had low friction coefficient of 0.12 and low wear rate of 5.11 Â 10 À7 mm 3 / mÁN. In summary, Ti plasma etching pre-treatment could significantly improve the adhesion of DLC film and keep its excellent tribological properties.

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Effect of mechanical and thermochemical tool steel substrate pre-treatment on diamond-like carbon (DLC) coating durability

Cited by 21 publications

References 39 publications

Influence of Ultrasound on the Characteristics of CaP Coatings Generated Via the Micro-arc Oxidation Process in Relation to Biomedical Engineering

Influence of Ultrasound on the Characteristics of CaP Coatings Generated Via the Micro-arc Oxidation Process in Relation to Biomedical Engineering

Catalytic Growth of High-Performance Graphite-like Carbon Films on a Nitrided Substrate: Experimental Study and First-Principles Calculations

The influence of Ti plasma etching pre‐treatment on mechanical properties of DLC film on cemented carbide

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