Tribological properties of duplex MAO/DLC coatings on magnesium alloy using combined microarc oxidation and filtered cathodic arc deposition

Abstract Diamond-like carbon (DLC) coatings containing 0.7%, 5.8% and 23.3% Ti were deposited via pulsed cathodic arc deposition and magnetron sputtering on AISI 316L stainless steel substrates. The varied Ti content was controlled by setting Ti target current at 3, 5 and 7A. The composition, microstructure, mechanical and tribological properties of Ti-doped DLC (Ti-DLC) coatings were investigated using X-ray photoelectron spectroscopy, Raman spectroscopy, nanoindentation and ball-on-disc tribometer. The results show that TiC formed when Ti content in the coating was higher than 5.8% and the ID/IG ratios increased gradually with the increasing Ti content. Ti-DLC with 0.7 Ti had the highest H/E and H3/E2 ratios and exhibited optimal tribological properties under lubrication, especially when ZDDP was contained in the oil. Furthermore, ZDDP tribofilms played an important role in wear reduction by protecting the rubbing surfaces against adhesion and suppressing the tribo-induced graphitization of DLC coatings.

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Effect of TiN/CrN Multilayer Coating by Cathodic Arc Deposition on Wear and Corrosion Behaviours of AZ91D Magnesium Alloy

Materials Science Forum ◽

10.4028/www.scientific.net/msf.610-613.870 ◽

2009 ◽

Vol 610-613 ◽

pp. 870-873 ◽

Cited By ~ 3

Author(s):

Lin Hai Tian ◽

Er Qiang Liu ◽

Ai Lan Fan ◽

Lin Qin ◽

Dao Xin Liu ◽

...

Keyword(s):

Magnesium Alloy ◽

Multilayer Coating ◽

Hardness Measurement ◽

Az91d Magnesium Alloy ◽

Cathodic Arc Deposition ◽

Wear And Corrosion ◽

Process Effects ◽

Cathodic Arc ◽

Arc Deposition ◽

Wear Tests

TiN/CrN multilayer coating was deposited on AZ91D magnesium alloy by pulsed bias cathodic arc PVD process. Effects of the coating on wear and corrosion behaviours of magnesium alloy were investigated. The stick-tearing for adhesion evaluation, nanoindentation for hardness measurement, ball-on-disc testing for wear tests, and potentiodynamic polarization for corrosion tests were used. The results show that the friction coefficient is decreased and the wear resistance is improved remarkably by TiN/CrN multilayer coating on AZ91D magnesium alloy. The corrosion resistance of the alloy is increased at a certain degree.

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Evaluation of Tribological and Mechanical Properties of Nitride Thin Films Prepared by Cathodic ARC Deposition

MRS Proceedings ◽

10.1557/proc-750-y5.19 ◽

2002 ◽

Vol 750 ◽

Cited By ~ 1

Author(s):

Pallavi Shukla ◽

A. K. Sikder ◽

Ashok Kumar ◽

Robert Durvin ◽

Mark McDonough ◽

...

Keyword(s):

Thin Films ◽

Mechanical Properties ◽

Tribological Properties ◽

High Speed Steel ◽

Hard Coatings ◽

Depth Sensing ◽

Wear Resistant ◽

Cathodic Arc Deposition ◽

Cathodic Arc ◽

Arc Deposition

ABSTRACTMechanical and tribological properties of thin films draw special attention and differ from those of bulk materials due to the effects of interfaces, microstructure and thick underlying substrates. In this study hard wear resistant nitride coatings (TiN, ZrN, TiAlN, TiCN and CrN) were coated on high speed steel substrates using cathodic arc deposition method. Mechanical properties of the films were evaluated using nanoindentation technique. Continuous stiffness method was employed to evaluate the depth sensing hardness and modulus values. Studies of tribological properties were performed using ball-on-disk friction and wear test. We have also investigated the wear track using optical microscopy. Variation of coefficient of friction with time has been analyzed and coating endpoint was estimated. Nanoindentation evaluation of mechanical properties along with the measurement of tribological properties is very useful in order to use them as wear resistant hard coatings.

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Corrosion resistance of TiN/TiAlN-coated ADI by cathodic arc deposition

Materials Science and Engineering A ◽

10.1016/j.msea.2005.12.014 ◽

2006 ◽

Vol 421 (1-2) ◽

pp. 182-190 ◽

Cited By ~ 48

Author(s):

Cheng-Hsun Hsu ◽

Ming-Li Chen ◽

Kuei-Laing Lai

Keyword(s):

Corrosion Resistance ◽

Cathodic Arc Deposition ◽

Cathodic Arc ◽

Arc Deposition

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XPS of Ti+TiN+(N,C) multilayer films deposited by filtered cathodic arc deposition with controlled feed gas flow rate

Surface and Coatings Technology ◽

10.1016/s0257-8972(99)00426-0 ◽

1999 ◽

Vol 120-121 ◽

pp. 618-621 ◽

Cited By ~ 7

Author(s):

Li Liuhe ◽

Xia Lifang ◽

Ma Xinxin

Keyword(s):

Flow Rate ◽

Gas Flow ◽

Multilayer Films ◽

Gas Flow Rate ◽

Cathodic Arc Deposition ◽

Cathodic Arc ◽

Arc Deposition

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Structural Characteristics of Diamond-Like Carbon Films Synthesized by Different Methods

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.743.112 ◽

2017 ◽

Vol 743 ◽

pp. 112-117

Author(s):

Alexander Zolkin ◽

Anna Semerikova ◽

Sergey Chepkasov ◽

Maksim Khomyakov

Keyword(s):

Amorphous Phase ◽

Ion Beam ◽

High Energy ◽

Carbon Films ◽

Ion Source ◽

Ordered Structure ◽

Deposition Technique ◽

Cathodic Arc Deposition ◽

Cathodic Arc ◽

Arc Deposition

In the present study, the Raman spectra of diamond-like amorphous (a-C) and hydrogenated amorphous (a-C:H) carbon films on silicon obtained using the ion-beam methods and the pulse cathodic arc deposition technique were investigated with the aim of elucidating the relation between the hardness and structure of the films. The hardness of the samples used in the present study was 19 – 45 GPa. Hydrogenated carbon films were synthesized using END–Hall ion sources and a linear anode layer ion source (LIS) on single-crystal silicon substrates. The gas precursors were CH4 and C3H8, and the rate of the gas flow fed into the ion source was 4.4 to 10 sccm. The ion energies ranged from 150 to 600 eV. a-C films were deposited onto Si substrates using the pulse cathodic arc deposition technique. The films obtained by the pulse arc technique contained elements with an ordered structure. In the films synthesized using low- (150 eV) and high-energy (600 eV) ions beams, an amorphous phase was the major phase. The significant blurriness of the diffraction rings in the electron diffraction patterns due to a large film thickness (180 – 250 nm) did not allow distinctly observing the signals from the elements with an ordered structure against the background of an amorphous phase.

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