| AVS 55th International Symposium & Exhibition | |
| Advanced Surface Engineering | Wednesday Sessions |
| Session SE+NC-WeA |
| Session: | Hard and Nanocomposite Coatings: Synthesis, Structure, and Properties II |
| Presenter: | A. Neira, North Carolina State University |
| Authors: | A. Neira, North Carolina State University F. Sequeda, Universidad del Valle, Colombia A. Ruden, Universidad del Valle, Colombia J.M. Gonzales, Universidad Nacional, Colombia |
| Correspondent: | Click to Email |
Process variables parameters as substrate temperature, bias voltage and N2/Ar ratio were studied during the deposition of IV, V and VI group materials in the form of nitrides, (TiAlVN, ZrN and CrN). Those coatings were deposited on chromium-based steels, like AISI H-13 and AISI-4140 commonly used for high mechanical performance even after long exposure at high working temperatures and AISI D-3 designed for high resistance to wear or to abrasion and for resistance to heavy pressure. This work was done using available coating production techniques like Plasma Assisted Physical Vapor Deposition (PAPVD) and DC-Reactive Magnetron Sputtering and physical properties resulting from modifying the process parameters like crystal structure, film texture, and mechanical properties like strain micro deformation, hardness, wear resistance friction coefficient and adhesion of the coating to the substrate were addressed in this study and conducted through film characterization techniques such as X-Ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Scanning Electron Microscope (SEM), micro and nanoindentation, wear and adhesion test. An special attention was given to the deposition of TiAlVN due to the differences on bonding types between components Al and V considered as “film stabilizers” increasing the film hardness and promoting the Magneli phase formation type (VxO3X-1), offering a reduction in the friction coefficient for auto lubrication phenomena, increasing its use for tribological coating applications.