scholarly journals INFLUENCE OF THERMOPHYSICAL AND PHYSICO-MECHANICAL PROPERTIES OF CATHODES ON DEFECTS FORMATION AND COMPOSITION OF TI1–XALXN COATINGS DURING CATHODIC ARC

2020 ◽  
pp. 14-22
Author(s):  
Anna Kameneva ◽  
◽  
Natalya Kameneva ◽  
Keyword(s):  
Structure Formation ◽  
Thermal State ◽  
Mechanical Load ◽  
Elastic Recovery ◽  
Film Coating ◽  
Thin Film Coating ◽  
Coating Methods ◽  
Cathodic Arc Evaporation ◽  
Arc Evaporation ◽  
Cathodic Arc

The effect of the thermal state of the hard alloy and the Ti1−xAlxN coating during its cathodic arc evaporation on the physicmechanical and tribological properties of the coating has been studied. The dependence of the structure formation process of the Ti1−xAlxN coating on its temperature during deposition was obtained experimentally. A nanostructured Ti1–xAlxN coating is formed in the range 850–1015 K at a heating rate of 6 K / min. A decrease in the hardness of the HG30-Ti1−xAlxN composition at temperatures above 960 K was experimentally revealed. The decrease in the hardness of the HG30-Ti1−xAlxN composition under these temperature conditions is caused by a significant increase in the plasticity zone and grain size WC, as well as a decrease in the hot hardness of the HG30 alloy. Thus, it has been revealed that the optimum deposition temperature of the coating on HG30 should not exceed 850–900 K. The high voltage and duration of ion cleaning of the HG30 substrate are corrected to reduce its initial temperature before the deposition of the Ti1−xAlxN coating by the method of cathodic arc evaporation. By optimizing the thermal state of the HG30 substrate and the nanostructured Ti1−xAlxN coating during its deposition, it became possible to increase the physicmechanical properties and reduce the friction coefficient of the Ti1−xAlxN coating. Compared to foreign analogs, the obtained Ti1−xAlxN coating has a higher wear resistance (H / E = 0.1), plastic deformation resistance (H3 / E2 = 1.31 GPa) and elastic recovery (Wе = 76 %). Monitoring the thermal state of the substrate and the Ti1−xAlxN coating during its deposition makes it possible to control the process of its structure formation, as well as to prevent the gradient of the composition and properties of the formed coatings, and to increase the thermo-mechanical load on the tool and parts during cutting and operation. This technique can be used for other thin-film coating methods.

scholarly journals Comparison of corrosion, physico-mechanical and wear properties of TiN, ZrN, TixZr1-xN and Ti1-xAlxN coatings

2020 ◽  
Vol 329 ◽  
pp. 02029
Author(s):  
Anna Kameneva ◽  
Vadim Karmanov ◽  
Sergey Stepanov ◽  
Darya Kameneva
Keyword(s):  
Elastic Recovery ◽  
Multilayer Coating ◽  
Wear Intensity ◽  
Technological Parameters ◽  
Wear Properties ◽  
Corrosion Properties ◽  
Cathodic Arc Evaporation ◽  
Passive Current ◽  
Arc Evaporation ◽  
Cathodic Arc

In this paper, TiN, ZrN, TixZr1-xN, Ti1-xAlxN coatings were obtained by cathodic arc evaporation at optimal technological parameters. The corrosion properties of these coatings were investigated in 5% NaOH. The coating ZrN deposited by cathodic arc evaporation slows down the corrosion in the 5% NaOH by over 3,000 times, and the passive current – by 2,000 times. The TixZr1-xN coating has the best physico-mechanical properties: microhardness Н = 36 GPa, Young’s modulus Е = 312 GPa, elastic recovery We = 78 %, resistance to elastic failure strain H/E = 0.12, and resistance to plastic strain H3/E2 = 1.31 GPa. The Ti1-xAlxN coating has the best wear properties: friction coefficient 0.09, counterbody wear intensity by volume 0.43•10-8 mm3/Nm, coating wear intensity by volume 0.05•10-4 mm3/Nm and by mass•0.03•10-5 mg/Nm. Multilayer coating TiN-TixZr1-xN-Ti1-xAlxN-ZrN (ZrN-top layer) has a complex of high physico-mechanical and wear properties in 5% NaOH.

scholarly journals Structure and Properties of Protective Coatings Deposited by Pulsed Cathodic Arc Evaporation in Ar, N2, and C2H4 Environments using the TiC–NiCr–Eu2O3 Cathode

Coatings ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 230 ◽  
Author(s):  
Philipp Kiryukhantsev-Korneev ◽  
Alina Sytchenko ◽  
Alexander Sheveyko ◽  
Stepan Vorotilo
Keyword(s):  
Corrosion Resistance ◽  
Friction Coefficient ◽  
Protective Coatings ◽  
Elastic Recovery ◽  
Optical Emission ◽  
Corrosion Current ◽  
Powder Metallurgy Method ◽  
Cathodic Arc Evaporation ◽  
Arc Evaporation ◽  
Cathodic Arc

Coatings were deposited by pulsed cathodic arc evaporation (PCAE) of a TiC–NiCr–Eu2O3 cathode fabricated by the powder metallurgy method. The deposition was carried out in different gas media, including Ar, N2, and C2H4. The structure, elemental, and phase compositions of coatings were studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), Raman spectroscopy, and glow discharge optical emission spectroscopy (GDOES). Coatings were tested in terms of their hardness, elastic modulus, elastic recovery, friction coefficient, and wear and corrosion resistance. The obtained results demonstrated that the coatings deposited in Ar possessed higher hardness up to 20 GPa and an elastic recovery of 92%. Coatings produced using С2H4 showed the minimum friction coefficient (0.35 ± 0.01). The use of nitrogen as a gas medium led to the formation of coatings with the best corrosion resistance in sulfuric acid. Coatings formed in N2 had a free corrosion potential of +0.28 V and a corrosion current density of 0.012 µA/cm2.

Surface modification of Ti–Al targets during cathodic arc evaporation

2011 ◽  
Vol 205 (21-22) ◽  
pp. 5116-5123 ◽  
Author(s):  
David Rafaja ◽  
Conrad Polzer ◽  
Gerhard Schreiber ◽  
Peter Polcik ◽  
Martin Kathrein
Keyword(s):  
Surface Modification ◽  
Cathodic Arc Evaporation ◽  
Arc Evaporation ◽  
Cathodic Arc

scholarly journals Erosion and Corrosion Behaviors of ADI Deposited TiN/TiAlN Coatings by Cathodic Arc Evaporation

2005 ◽  
Vol 46 (6) ◽  
pp. 1417-1424 ◽  
Author(s):  
Cheng-Hsun Hsu ◽  
Jung-Kai Lu ◽  
Kuei-Liang Lai ◽  
Ming-Li Chen
Keyword(s):  
Corrosion Behaviors ◽  
Cathodic Arc Evaporation ◽  
Arc Evaporation ◽  
Cathodic Arc

scholarly journals Investigation on Microblasting Applied to CrN Coatings

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Lorenzo Montesano ◽  
Annalisa Pola ◽  
Marcello Gelfi ◽  
Giovina Marina La Vecchia
Keyword(s):  
Wear Behavior ◽  
Corrosion And Wear ◽  
Crn Coating ◽  
Evaporation Technique ◽  
Cathodic Arc Evaporation ◽  
Quenched And Tempered Steel ◽  
Pin On Disk ◽  
Arc Evaporation ◽  
Cathodic Arc ◽  
Crn Coatings

A microblasting treatment carried out on CrN coated samples was studied to investigate the induced effect on corrosion and wear resistance. CrN coating was deposited through Cathodic Arc Evaporation technique on quenched and tempered steel. The properties of the coating were studied by hardness measurements, scratch, potentiodynamic, and pin-on-disk tests. The results show that microblasting reduces the corrosion resistance while improving the wear behavior.

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