| AVS 58th Annual International Symposium and Exhibition | |
| Tribology Focus Topic | Thursday Sessions |
| Session TR-ThP |
| Session: | Tribology Focus Topic Poster Session |
| Presenter: | Martin Flores, Universidad de Guadalajara, Mexico |
| Authors: | M. Flores, Universidad de Guadalajara, Mexico O. Jiemnez, Universidad de Guadalajara, Mexico J. Garcia, Universidad de Guadalajara, Mexico E. Rodriguez, Universidad de Guadalajara, Mexico L. Huerta, Universidad Nacional Autononoma de Mexico |
| Correspondent: | Click to Email |
The multilayer coatings can improve the corrosion and wear resistance of materials for biomedical applications. The tribocorrosion behavior of TiALN and TiAlPtxN coatings and TiAlPtxN-TiAlPtx multilayers immersed in a corrosive environment was investigated. The coatings were deposited on 316L stainless steel and Ti6Al4V alloys by magnetron sputtering. The period thickness of multilayers was 300 nanometers and the total thickness was 3.6 microns. In order to evaluate the influence of the environment, the corrosion was studied using open circuit potential (OCP) measurements and potentiodynamic polarization techniques in saline and a Ringer ´s solutions. For the tribocorrosion test a counterbody of Alumina with 10 mm diameter was used. The loads used were from 1 to 5 N, the oscillating frequencies were 1Hz to 5 Hz. The electrochemical noise measurements were performed during, and after the sliding and scratch tests. The structure and composition of multilayers were studied by means of XRD, XPS and RBS techniques. It was found that the codeposition of Pt and TiAlN-TiAl multilayer can improve the wear-corrosion resistance of materials for biomedical applications.The tribocorrosion behavior results in terms of the coefficient of friction showed a dependence against the force and the sliding frequency.