Adhesion Strength between D.C. Plasma Nitrided Steels and CrN Films

Kyouji Kondo; Kaoru Ikenaga; Yoshiyuki Funaki; Hirotsugu Takeuchi

doi:10.4028/www.scientific.net/SSP.118.265

Paper Titles

State of the Art and Prospects on Laser Clad Multiphase Transition Metal Silicides Wear and Corrosion Resistant Coatings for the Aerospace and Petrochemical Industries
p.235

The Design and Application of a Novel Duplex Coating Formed by Laser Pre-Treatment
p.243

Characteristics of TiAl-Doped DLC/TiAlN/TiN Multilayered Coatings Synthesized by Cathodic Arc Evaporation
p.247

Study on Characteristics of ADI Coated DLC/ TiN /TiAlN Coatings by Cathodic Arc Evaporation
p.257

Adhesion Strength between D.C. Plasma Nitrided Steels and CrN Films
p.265

Surface Modification of Aluminum Alloys Prepared by Plasma-Based-Ion-Implantation Technique
p.269

A study on the Surface Properties of Nitrogen Implanted H13 Steel by Plasma Immersion Ion Implantation
p.275

Effects of Co, Ti Interlayer, and Post-Annealing on the Adhesion Property between TiN Coatings and WC-Co Substrate
p.281

Effect of Post Deposition Annealing Temperature on the Optoelectrical Property of ITO Thin Films Prepared by Magnetron Sputter Type Negative Metal Ion Source
p.287

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Adhesion Strength between D.C. Plasma Nitrided Steels and CrN Films

Abstract:

The hard ceramic film made by PVD is used to increase the life and wear resistance of tools and dies. The adhesion strength between the ceramic film and surface of steels is important in ceramic coating of tools and dies. We investigated the adhesion strength between nitrided tool steel for dies SKD61 (JIS) and CrN film. The steel was plasma nitrided with 20 vol% N2 - H2 gas, and coated with CrN by means of PVD of HCD type. Thicknesses of the CrN films are 1 - 6 μm. Plasma nitriding time and thickness of the CrN films was examined to investigate adhesion strength between the CrN film and the steel. Maximum critical load value 55N at nitriding time 7,200 sec was obtained from the CrN coating on the surface of plasma nitrided SKD61