Influence of Bi-Layer Thickness on the Structure and Properties of Multilayered TiN/CrN Coatings by Cathodic Arc Plasma Deposition

2008 ◽  
Vol 373-374 ◽  
pp. 192-195
Author(s):  
Chi Lung Chang ◽  
Wei Yu Ho ◽  
Wen Jen Liu ◽  
J.J. Hwang ◽  
Da Yung Wang
Keyword(s):  
Layer Thickness ◽  
Plasma Deposition ◽  
X Ray Diffraction ◽  
Glancing Angle ◽  
Fixed Power ◽  
Cathodic Arc Evaporation ◽  
Indentation Methods ◽  
Arc Evaporation ◽  
Cathodic Arc ◽  
Crn Coatings

TiN/CrN nanoscale multilayered coatings have been deposited using cathodic arc evaporation system. The coatings were deposited using one Ti target and one Cr target with a fixed power output in the processes, whilst the bi-layer thickness was varied by rotation of the substrate holder to obtain different nanoscale multilayered period thickness. The texture structure, residual stress and nanoscale multilayer thickness of the coatings were determined by X-ray diffraction using both Bragg-Brentano and glancing angle parallel beam geometries. Hardness and adhesion strength of the coatings were measured by Vicker's and Rockwell-C indentation methods. It has been found that the structural and mechanical properties of the films were correlated with nanoscale bi-layer thickness and crystalline texture. The maximum hardness of nanolayered TiN/CrN multilayer coatings was approximately 28 GPa, which the bi-layer thickness was 4 nm.

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.

Mechanical Properties of TiAlN/CrN Nanolayered Coatings Synthesized by a Cathodic-Arc Deposition Process

2006 ◽  
Vol 118 ◽  
pp. 323-327 ◽  
Author(s):  
Yin Yu Chang ◽  
Da Yung Wang ◽  
Chi Yung Hung
Keyword(s):  
Mechanical Properties ◽  
Deposition Process ◽  
Cathodic Arc Deposition ◽  
Nanolayer Thickness ◽  
Cathodic Arc Evaporation ◽  
20 Nm ◽  
Scratch Tests ◽  
Arc Evaporation ◽  
Cathodic Arc ◽  
Crn Coatings

TiAlN, and TiAlN/CrN nanolayered coatings were synthesized by cathodic-arc evaporation with plasma enhanced duct equipment. Chromium and TiAl (50/50 at %) alloy cathodes were used for the deposition of TiAlN/CrN coatings. The effects of bilayer thickness and chromium content on the microstructure and mechanical properties of TiAlN/CrN nanolayered coatings were studied. The preferred orientation was changed from (200) in TiAlN monolayered coatings to (111) plane in the multilayered TiAlN/CrN coatings. The multilayered TiAlN/CrN coating with periodic thickness of 20 nm and the smallest crystallite size of 28 nm exhibited the highest hardness of 39 GPa. The multilayered TiAlN/CrN coatings also showed the best adhesion strength using scratch tests. It has been found that the structural and mechanical properties of the films were correlated with the addition of chromium and nanolayer thickness.

scholarly journals Structure and Properties of ZrON Coatings Synthesized by Cathodic Arc Evaporation

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1483
Author(s):  
Alexander S. Kuprin ◽  
Adam Gilewicz ◽  
Tatyana A. Kuznetsova ◽  
Vasilina A. Lapitskaya ◽  
Galina N. Tolmachova ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Oxygen Concentration ◽  
Strong Dependence ◽  
Scratch Test ◽  
X Ray Diffraction ◽  
X Ray ◽  
Light Yellow ◽  
Cathodic Arc Evaporation ◽  
Arc Evaporation ◽  
Cathodic Arc

The transition metal oxynitrides are a coating material with decorative features due to their adjustable color and good mechanical properties. The purpose of the research was to study the effect of the relative oxygen concentration O2(x) = O2/(N2 + O2) in particular on adhesion, but also on the color, structural and mechanical properties of ZrON coatings synthesized by cathodic arc evaporation on HS6-5-2 steel substrates. The surface morphology, phase and chemical composition and mechanical properties were determined using scanning electron microscopy, X-ray diffraction, wavelength dispersive X-ray spectroscopy, nanoindentation and scratch test. It was found that color of the coatings changed from light yellow for ZrN first to gold and then to graphite for Zr-O phase with increase of oxygen concentration. X-ray diffraction patterns showed that the phase separation of ZrN and ZrO2 occurred for about 35 at.% of oxygen in the coating. Increase in oxygen concentration in the coatings led to decrease in crystallite size from about 20 nm for ZrN to about 5 nm for coatings with about 35 at.% of oxygen and about 25 at.% of nitrogen. An increase in hardness from about 26 GPa for ZrN to about 30 GPa for coating with small concentration of oxygen (about 9 at.%) and then decrease to about 15 GPa was observed. Adhesion of Zr-O-N coatings demonstrated strong dependence on oxygen concentration. Critical load for ZrN is about 80 N and decreases with oxygen concentration increase to about 30 N for ZrO2.

scholarly journals Analysis of Thermal Stability of CrCN Coatings Deposited on Nitrided Substrates Using Modulated Temperature Thermodilatometry

2017 ◽  
Vol 62 (2) ◽  
pp. 771-776 ◽  
Author(s):  
K. Mydłowska ◽  
P. Myśliński ◽  
Ł. Szparaga ◽  
J. Ratajski ◽  
A. Gilewicz ◽  
...  
Keyword(s):  
Thermal Stability ◽  
X Ray Diffraction ◽  
Modulated Temperature ◽  
Before And After ◽  
42Crmo4 Steel ◽  
Cathodic Arc Evaporation ◽  
Stress States ◽  
Arc Evaporation ◽  
Cathodic Arc ◽  
Thermal Stability Of

Abstract The aim of the research was to investigate the influence of nitriding of the substrate made of 42CrMo4 steel on thermal stability of the antiwear CrCN coating deposited on its surface using Cathodic Arc Evaporation method. Samples of non-nitrided and nitrided substrate/CrCN coating systems were tested with Modulated Temperature Thermodilatometry, which program included system annealing in 26 h, temperature of 290°C and argon atmosphere. Recorded during tests, changes in substrate elongation in response for changes of sample temperature, enabled qualitative determination of changes in stress states in the coatings as a result of samples annealing. Annealing of the system with nitrided substrate resulted in smaller change in residual stress in coating than for the system with non-nitrided substrate, which can indicate its better thermal stability. Values of residual stresses in coatings calculated by sin2ψ method before and after annealing on the basis of tests performed using X-Ray diffraction, agree with results of dilatometric tests.

Investigation of ZrN Hard Coatings Obtained by Cathodic Arc Evaporation

2010 ◽  
Vol 159 ◽  
pp. 113-116 ◽  
Author(s):  
Roumen Kakanakov ◽  
H. Bahchedjiev ◽  
Lilyana Kolaklieva ◽  
T. Cholakova ◽  
Svetla Evtimova ◽  
...  
Keyword(s):  
Hard Coatings ◽  
Crystallographic Structure ◽  
Titanium Nitrides ◽  
X Ray Diffraction ◽  
Force Microscopy ◽  
Atomic Force ◽  
Cathodic Arc Evaporation ◽  
Steel Substrates ◽  
Arc Evaporation ◽  
Cathodic Arc

Zirconium nitrides (ZrN) coatings have shown better quality in comparison to titanium nitrides (TiN) ones regarding the application in the mechanical processing of aluminum and titanium alloys. This work presents the results from investigation on properties of ZrN-based coatings intended for industrial application. The ZrN and ZrTiN hard coatings in a thickness of (3 5) m were obtained on stainless steel substrates by cathodic arc evaporation method. The coating hardness in the range of 25-32 GPa was evaluated using the Vickers measurement technique. The coating properties were studied in relation to the surface morphology by Atomic force microscopy (AFM) and Scanning electron microscopy (SEM). The analyses showed that the number and size of the macroparticles decrease when N2 pressure increases in the deposition chamber. X-ray diffraction analysis (XRD) was performed to identify the crystallographic structure, preferred orientation and stress of the ZrN coatings.

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