AVS 54th International Symposium
    Advanced Surface Engineering Tuesday Sessions
       Session SE-TuP

Paper SE-TuP11
Wear Behavior of Unbalanced Magnetron Sputtered Multilayer CrN/TiAlYN Coatings Deposited on Plasma Nitrided Steels

Tuesday, October 16, 2007, 6:00 pm, Room 4C

Session: Advanced Surface Engineering Poster Session
Presenter: M. Flores, Universidad de Guadalajara, México
Authors: M. Flores, Universidad de Guadalajara, México
E. Rodriguez, Universidad de Guadalajara, México
E. De las Heras, Instituto Nacional de Tecnología Industrial, Argentina
P. Corengia, Instituto Nacional de Tecnología Industrial, Argentina
L. Huerta, Universidad Nacional Autonoma de México
Correspondent: Click to Email

The influence of pretreatment on the wear behavior of tool steels coated with TiN, CrN and CrN/TiAlYN multilayers were experimentally investigated. The substrate materials were nitrided using plasma nitriding. The thin films were deposited using unbalanced magnetron sputtering technique. A comparison between the wear resistances of nitrided, coated, nitrided and coated samples were made. The nitrided coatings and CrN/TiAlYN multilayer grown on pulse plasma nitriding steels have been characterized by using X-ray diffraction (XRD), scanning electron microscope (SEM), micro-indentation and abrasive wear tests. The depth profiles were studied by X-ray photoelectron spectroscopy (XPS) and Rutherford Backscattering spectroscopy (RBS). The duplex coatings showed a low wear respect to the coated samples. The out-performance of the prenitrided TiN, CrN and CrN/TiAlYN coatings can be attributed to the presence of a nitrided subsurface.