Effect of high-speed steel surface nitriding treatment on adhesion and wear resistance properties of nitrogen-doped diamond-like carbon coatings

Liu, Feng; Hu, Jiannan; Yan, Sen; He, Zhiwei; Shi, Junjie; Li, Jianzhong

doi:10.1016/j.diamond.2023.110006

Cited by 10 publications

(4 citation statements)

References 33 publications

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“…This supports previous research and confirms the observations made by other researchers, who consistently found similar differences in magnitude. Feng et al [44] achieved a similar wear coefficient of 2.11 × 10 −7 mm 3 /Nm using a DLC and HSS combination. Also, Chang et al [45] obtained 2.11 × 10 −7 mm 3 /Nm using their DLC coating.…”

Section: Friction and Wear Testsmentioning

confidence: 87%

Study of the Industrial Application of Diamond-Like Carbon Coatings Deposited on Advanced Tool Steels

Barba,

Claver,

Montalà

et al. 2024

Coatings

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The utilization of diamond-like carbon (DLC) coatings has emerged as a promising strategy to enhance the performance, durability, and functionality of industrial tools and components. Recognized for their exceptional attributes such as hardness, wear resistance, low friction, and biocompatibility, DLC coatings have achieved widespread acclaim for their potential to improve the capabilities of tool steels for different applications. This present study shows a comprehensive investigation into the application of DLC coatings on a diverse range of tool steel substrates, encompassing 1.2379, 1.2358, Caldie, K340, HWS, and Vanadis 4. The main aim is to show the effects of DLC coatings on these substrates and to provide an in-depth analysis of their properties during forming processes. Furthermore, this study explores the practical utilization of DLC-coated tool steel components, with a particular focus on their role in cold forming dies. Additionally, the study reviews the application of duplex treatments involving plasma nitriding to enhance DLC coating performance. To sum up, this study pursues a threefold objective: to investigate DLC coatings’ performance on diverse tool steel substrates; to assess the potential for improvement through nitriding; and to evaluate the behavior of DLC coatings in the cold stamping of S235 steel, which is of great technological and industrial interest to the cold forging sector.

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Section: Friction and Wear Testsmentioning

confidence: 87%

Study of the Industrial Application of Diamond-Like Carbon Coatings Deposited on Advanced Tool Steels

Barba,

Claver,

Montalà

et al. 2024

Coatings

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“…BAM coatings enhanced the hardness of WC-Co inserts by a factor of two. Meanwhile, R6M5 steel drills became more than three times as hard after BAM coating with a friction coefficient twice as lowas the one acquired in the combined process of steel nitriding and N-doped diamond-like carbon coating [23].…”

Section: Introductionmentioning

confidence: 97%

Hard and Highly Adhesive AlMgB14 Coatings RF Sputtered on Tungsten Carbide and High-Speed Steel

Grishin,

Putrolaynen

2023

Materials

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We report a new industrial application of aluminum magnesium boride AlMgB14 (BAM) coatings to enhance the hardness of tungsten carbide ceramic (WC-Co) and high-speed steel tools. BAM films were deposited by RF magnetron sputtering of a single dense stoichiometric ceramic target onto commercial WC-Co turning inserts and R6M5 steel drill bits. High target sputtering power and sufficiently short target-to-substrate distance were found to be critical processing conditions. Very smooth (6.6 nm RMS surface roughness onto Si wafers) and hard AlMgB14 coatings enhance the hardness of WC-Co inserts and high-speed R6M5 steel by a factor of two and three, respectively. Complete coating spallation failure occurred at a scratch adhesion strength of 18 N. High work of adhesion and low friction coefficient, estimated for BAM onto drill bits, was as high as 64 J/m2 and as low as 0.07, respectively, more than twice the surpass characteristics of N-doped diamond-like carbon (DLC) films deposited onto nitride high-speed W6Mo5Cr4V2 steel.

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“…The abovementioned publications utilizing chemical vapor deposition methods using gas as a carbon source did not discuss the effect of gas flow rate changes on the optical properties of N-DLC. Discussion on the impact of gas flow rate changes has, so far, focused on the adhesion [23] and tribological properties of diamond-like coatings [24]. To our knowledge, there are currently no reports on the effects of gas flow rate changes under low-flow conditions on the structure and optical properties of diamond-like carbon films using chemical vapor deposition methods.…”

Section: Introductionmentioning

confidence: 99%

Effect of Gas Flow Rate and Ratio on Structure and Properties of Nitrogen-Doped Diamond-like Carbon Films

Ma,

Wang,

et al. 2024

Applied Sciences

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Diamond-like carbon (DLC) has attracted much attention due to its unique properties such as high chemical inertness, optical transparency, and high biocompatibility. In this study, the total gas flow rate was kept constant, while the ratio of reactive gases was varied to deposit nitrogen-doped diamond-like carbon thin films on glass substrates using radiofrequency plasma-enhanced chemical vapor deposition. The effects of the gas flow ratio on the composition, microstructure, surface morphology, and optical properties of the thin films were investigated through extended deposition times. It was found that with an increase in the nitrogen-to-methane gas flow ratio, the film surface became smoother and more compact. The maximum transmittance in the visible range reached 90%, and the highest and lowest transmittance in the same ultraviolet wavelength region differed by up to 25.62% among several sample groups. The optical bandgap decreased from 3.58 eV to 3.46 eV, contrary to the trend of the sp2 fraction variation. Compared with other studies, this study considered the preparation of nitrogen-doped diamondoids using a chemical vapor deposition method with a lesser total gas flow rate passed into it, which provides practical data reference value for the preparation of N-DLC.

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Effect of high-speed steel surface nitriding treatment on adhesion and wear resistance properties of nitrogen-doped diamond-like carbon coatings

Cited by 10 publications

References 33 publications

Study of the Industrial Application of Diamond-Like Carbon Coatings Deposited on Advanced Tool Steels

Study of the Industrial Application of Diamond-Like Carbon Coatings Deposited on Advanced Tool Steels

Hard and Highly Adhesive AlMgB14 Coatings RF Sputtered on Tungsten Carbide and High-Speed Steel

Effect of Gas Flow Rate and Ratio on Structure and Properties of Nitrogen-Doped Diamond-like Carbon Films

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