Tribological Behavior of Multilayered WC-Ti1-xAlxN Coatings Deposited by Cathodic Arc Deposition Process on High Speed Steel

2005 ◽  
pp. 1430-1438
Author(s):  
Chung Woo Cho ◽  
Sung Hoon Jeong ◽  
Seung Ho Ahn ◽  
Jung Gu Kim ◽  
Young Ze Lee
Keyword(s):  
High Speed ◽  
Tribological Behavior ◽  
High Speed Steel ◽  
Deposition Process ◽  
Cathodic Arc Deposition ◽  
Cathodic Arc ◽  
Arc Deposition

Tribological Behavior of Multilayered WC-Ti1-xAlxN Coatings Deposited by Cathodic Arc Deposition Process on High Speed Steel

2005 ◽  
Vol 297-300 ◽  
pp. 1430-1438
Author(s):  
Chung Woo Cho ◽  
Sung Hoon Jeong ◽  
Seung Ho Ahn ◽  
Jung Gu Kim ◽  
Young Ze Lee
Keyword(s):  
High Speed ◽  
Tribological Behavior ◽  
High Speed Steel ◽  
Deposition Process ◽  
Cross Sectional ◽  
Multilayered Coatings ◽  
Cathodic Arc Deposition ◽  
Aisi D2 ◽  
Aisi 52100 Steel ◽  
Disc Configuration

Four different multilayered coatings with different Al concentrations were deposited on AISI D2 steel. The prepared coating samples were designated as WC-Ti0.6Al0.4N, WC-Ti0.53Al0.47N, WC-Ti0.5Al0.5N and WC-Ti0.43Al0.57N. The multilayered coatings were investigated with respect to coating surface and cross-sectional morphology, roughness, adhesion, hardness, porosity and tribological behavior. Especially, wear tests of four multilayered coatings were performed by using a ball-on-disc configuration with a linear sliding speed of 0.017 m/sec and a load of 5.38N. The tests were carried out at room temperature in air by employing AISI 52100 steel ball (HR = 66) with a diameter of 10mm. The surface morphology and topography of the wear scars of samples and balls have been determined by using scanning electron spectroscopy (SEM). Results have showed an improved wear resistance of the WC-Ti1-xAlxN coatings with increasing Al concentration.

Microstructure Characterization of Multilayered TiSiN/CrN Thin Films

2008 ◽  
Vol 8 (5) ◽  
pp. 2688-2692 ◽  
Author(s):  
Sheng-Min Yang ◽  
Yin-Yu Chang ◽  
Dong-Yih Lin ◽  
Da-Yung Wang ◽  
Weite Wu
Keyword(s):  
Lamellar Structure ◽  
Deposition Process ◽  
X Ray Diffraction ◽  
X Ray ◽  
Cathodic Arc Deposition ◽  
Cathode Current ◽  
Cathodic Arc ◽  
Crn Coatings ◽  
Arc Deposition

Monolayered TiSiN and multilayered TiSiN/CrN coatings were synthesized by a cathodic arc deposition process. The chromium and Ti/Si (80/20 at.%) alloy targets were adopted as the cathode materials, altering the ratio of cathode current (I[TiSi]/I[Cr]) to obtain various multilayer periodic thicknesses of multilayered TiSiN/CrN coatings. X-ray diffraction and TEM analyses showed that all the deposited monolayered TiSiN and multilayered TiSiN/CrN films possessed the B1-NaCl structure. In this study, it was shown that the multilayer periods (Λ) of the TiSiN/CrN deposited at I[TiSi]/I[Cr] cathode current ratios of 1.8, 1.0, and 0.55 were 8.3 nm, 6.2 nm, and 4.2 nm, respectively, with multilayer periodic thicknesses decreasing with smaller I[TiSi]/I[Cr] cathode current ratios. An amorphous phase was found at the boundaries of the TiN/CrN column grains. In addition, the multilayered TiSiN/CrN coatings displayed a lamellar structure that was well-defined and nonplanar between each TiN and CrN layer.

Influence of Interlayer on the Corrosion Behavior of Multilayered WC-Ti1-xAlxN Coatings in Deaerated 3.5% Sodium Chloride Solution

2007 ◽  
Vol 544-545 ◽  
pp. 359-362
Author(s):  
J.H. Hong ◽  
Seung Ho Ahn ◽  
Jung Gu Kim
Keyword(s):  
High Speed ◽  
Galvanic Corrosion ◽  
Multilayer Coating ◽  
High Speed Steel ◽  
Al Content ◽  
Cathodic Arc Deposition ◽  
Wear And Corrosion ◽  
Lower Porosity ◽  
Corrosion Behaviors ◽  
Cathodic Arc

Multilayered coatings of WC-Ti and WC-Ti1-xAlxN were deposited to form a wear- and corrosion-resistant surface. The cathodic arc deposition (CAD) method was used to deposit WC-Ti1- xAlxN coatings with variable Al content onto high speed steel (HSS). Three kinds of WC-Ti1-xAlxN coatings, each with and without interlayer (Ti/TiN), were prepared. The corrosion behaviors of WCTi1- xAlxN coatings in a deaerated 3.5% NaCl solution were investigated by galvanic corrosion test and potentiodynamic polarization test. The porosity of the coatings, both with and without interlayer, generally decreased with increasing Al content. The multilayer coating with a Ti/TiN interlayer was responsible for the increased corrosion resistance due to its lower porosity and higher adhesion strength than the multilayer coatings without interlayer.

scholarly journals Mechanical Properties of Amorphous Hard Carbon Films Prepared by Cathodic ARC Deposition

1995 ◽  
Vol 383 ◽  
Author(s):  
Simone Anders ◽  
André Anders ◽  
Joel W. Ager ◽  
Zhi Wang ◽  
George M. Pharr ◽  
...  
Keyword(s):  
Bias Voltage ◽  
Deposition Process ◽  
Carbon Films ◽  
Carbon Ions ◽  
Hard Carbon ◽  
Cathodic Arc Deposition ◽  
Transmission Electron ◽  
As Stress ◽  
Cathodic Arc ◽  
Arc Deposition

ABSTRACTCathodic arc deposition combined with macroparticle filtering of the plasma is an efficient and versatile method for the deposition of amorphous hard carbon films of high quality. The film properties can be tailored over a broad range by varying the energy of the carbon ions incident upon the substrate and upon the growing film by applying a pulsed bias technique. By varying the bias voltage during the deposition process specific properties of the interface, bulk film and top surface layer can be obtained. We report on nanoindentation and transmission electron microscopy studies as well as stress measurements of cathodic-arc amorphous hard carbon films deposited with varied bias voltage. The investigations were performed on multilayers consisting of alternating hard and soft amorphous carbon.

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