Wear and oxidation behavior of reactive sputtered δ-(Ti,Mo)N films deposited at different nitrogen gas flow rates

Komiyama, Shoko; Sutou, Yuji; Oikawa, Katsunari; Koike, Junichi; Wang, M.; Sakurai, Minoru

doi:10.1016/j.triboint.2015.02.005

Cited by 16 publications

(5 citation statements)

References 35 publications

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“…Scattered wear debris (white particles) was observed on and next to the wear track (Figure 9c (magnification 1500×)). Studies of the wear behavior of the (Ti, Mo)N film [61] and the TiCN film [62] showed that the wear debris accumulated in the scratch path area. The wear debris of the (Ti, Mo)N film was mainly composed of Mo and Ti oxides or Fe oxide from the counter body.…”

Section: Scratch Test Resultsmentioning

confidence: 99%

Preparation and Characterization of the Cr-Nanodiamonds/MoN Coatings with Performant Mechanical Properties

et al. 2022

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This paper presents the results of a study on the preparation and characterization of a Cr-DND/MoN detonation chromium-nanodiamond coating deposited on cemented tungsten carbide (WC–3 wt.% Co) mill blades using Arc-PVD and electrodeposition methods. The physical and mechanical characteristics of the coatings were investigated by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), XRD analysis, Raman spectroscopy, micro-identification, and scratch test (evaluation of the coating adhesion). It was shown that the Cr-DND/MoN coating consists of successive layers of Cr-DND (top), Cu (middle) and MoN (bottom) with separate phases of γ-Mo2N, α-Mo, α-Cu, Cr-DND and nanodiamonds. The Cr-DND composite electrochemical coating (CEC) was deposited from the conventional chromium plating electrolyte with the addition of nanodiamonds. The copper interlayer was deposited by the Arc-PVD method on the surface of the MoN coating to improve the adhesion strength of the Cr-DND CEC. The coating showed an optimum microhardness of about 14 ± 1 GPa and good adhesion with a critical load Lc of about 93 N. In addition to the expected experimental results, the coating has high wear resistance, confirmed by scratch tests.

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Section: Scratch Test Resultsmentioning

confidence: 99%

Preparation and Characterization of the Cr-Nanodiamonds/MoN Coatings with Performant Mechanical Properties

et al. 2022

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“…One can monitor from the figure that, the wear rate increases up to a maximum value as the N 2 increases up to 40% N 2 and then after it decreases at 50% N 2 . From this result, it can be inferred that the N 2 gas ratio is vital factor for controlling the wear resistance [49]. The results show that, the AISI 304 substrate has the highest corrosion potential and the highest corrosion current in comparison with the associated values of the Ti-Zr-N coating samples.…”

Section: Wear and Friction Coefficientmentioning

confidence: 82%

Effect of Nitrogen Gas Ratio on the Properties of Ti-Zr-N Coatings Deposited by Pulsed Magnetron Sputtering

El-Hossary

El-Rahman

Ata

et al. 2017

JES. Journal of Engineering Sciences

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The aim of this paper was to study the effectiveness of N 2 /Ar gas ratio on the mechanical and tribological properties of Ti-Zr-N films coated on (AISI 304 stainless steel) substrate. The thin films were produced at 150 W pulsed magnetron sputtering (PMS) technique operated for 90 min. The structure and tribo-mechanical properties of the Ti-Zr-N coatings were investigated at different N 2 /Ar gas pressure ratio. X-ray diffraction (XRD), microhardness, surface roughness, wear and friction, corrosion performance and surface energy were investigated. The analysis of X-ray diffraction (XRD) indicated a formation of solid solution phase of (Ti-Zr)N with (FCC) structure and a chemical compound phase of TiN. The solid solution phase (Ti-Zr)N has the orientation (111). The microhardness of the thin films has high values compared to associated value of (AISI 304 stainless steel) substrate; up to 4-folds. Furthermore, the wear performance was improved from 73.06 mm 3 /m for AISI substrate to 5.01 mm 3 /m after depositing Ti-Zr-N. The coefficient of friction was decreased from nearly 0.69 for the austenitic substrate to nearly 0.12 after coating with Ti-Zr-N. Over and above, the corrosion resistance substantially improved (factor of 1000 times) after the coating.

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“…According to a previous study on (Ti, Mo)N coating, it has been suggested from the viewpoint of thermodynamics consideration that the activity of Ti in (Ti, Mo)N drastically decreases, whereas the activity of Mo increases with increasing N content. 16,17) Consequently, Mo can be easily oxidized in (Ti, Mo)N film with a high N content. Therefore, it is considered that the formation of Mo oxide by wear oxidation can be also greatly promoted by increasing the N content in the Ti-Mo-C-N film.…”

Section: Wear Properties Change By Varying F Nmentioning

confidence: 99%

“…15) Moreover, Ti-Mo-N film with a high N content has been formed to show good adhesive wear resistance against carbon steel such as S45C. 12,16,17) Therefore, it is expected that simultaneous improvements of hardness, friction coefficient and adhesive wear resistance can be realized by the addition of Mo to Ti-C-N and also by controlling the N content in Ti-Mo-C-N.…”

Section: Introductionmentioning

confidence: 99%

Hardness and Wear Properties of Ti-Mo-C-N Film

et al. 2016

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The hardness and wear properties of Ti-Mo-C-N films were investigated by nanoindentation and ball-on-disc measurements, respectively. Ti-Mo-C-N films were deposited onto a stainless steel substrate by a reactive RF magnetron sputtering in the mixture of argon (7.5 ccm) and nitrogen (06.0 ccm) gases using Ti 25 Mo 25 C 50 target. Ti-Mo-C film deposited without nitrogen gas flow showed a hardness of 34.8 GPa. The hardness drastically decreased with increasing nitrogen gas flow rate (f N2 ) and reached to a minimum hardness of 16.4 GPa at f N2 ¼ 2:0 ccm. Contrarily, at over f N2 ¼ 3:0 ccm, the hardness drastically increased with increasing f N2 and reached a maximal value of 32 GPa, and then slightly decreased again with further increase of f N2 . It was found by TEM observation that the drastic decrease in hardness is caused by the formation of nanocrystalline microstructure, while the increase in hardness is due to the microstructural change from nanocrystalline to columnar structure. The friction coefficient decreased with increasing f N2 and the film deposited at f N2 ¼ 5:0 ccm showed a minimum value of 0.27. The simple oxidation test in air indicated that lubricious MoO 3 is easy to be formed in the film deposited at a high f N2 , which should cause the reduction of friction coefficient.

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Wear and oxidation behavior of reactive sputtered δ-(Ti,Mo)N films deposited at different nitrogen gas flow rates

Cited by 16 publications

References 35 publications

Preparation and Characterization of the Cr-Nanodiamonds/MoN Coatings with Performant Mechanical Properties

Preparation and Characterization of the Cr-Nanodiamonds/MoN Coatings with Performant Mechanical Properties

Effect of Nitrogen Gas Ratio on the Properties of Ti-Zr-N Coatings Deposited by Pulsed Magnetron Sputtering

Hardness and Wear Properties of Ti-Mo-C-N Film

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