Dry sliding wear behaviour of β-type Ti-Nb and Ti-Mo surfaces designed by diffusion treatments for biomedical applications
| Autor: | Elena Gordo, S.A. Tsipas, E. Tabares, J. Ureña, Antonia Jiménez-Morales |
|---|---|
| Přispěvatelé: | Comunidad de Madrid |
| Rok vydání: | 2017 |
| Předmět: |
Metallic biomaterial
Materials science Friction Surface Properties Diffusion Niobium Resistance Biomedical Engineering chemistry.chemical_element Mechanical properties Biocompatible Materials 02 engineering and technology Mo Biomaterials 03 medical and health sciences Reciprocating motion Molibdeno 0302 clinical medicine Wear Materials Testing Nb Titanium alloys Composite material Microstructure Sliding wear Mechanical Phenomena Molybdenum Titanium Materiales Biomaterial 030206 dentistry 021001 nanoscience & nanotechnology Stainless Steel Wear resistance Corrosion Niobio Diffusion treatments chemistry Mechanics of Materials Beta-Gradient titanium 0210 nano-technology Tribometer |
| Zdroj: | e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid instname e-Archivo: Repositorio Institucional de la Universidad Carlos III de Madrid Universidad Carlos III de Madrid (UC3M) |
| ISSN: | 1878-0180 |
| Popis: | The dry sliding wear behaviour of different Ti-Nb and Ti-Mo surfaces was investigated in order to evaluate the role of Nb and Mo beta-stabilizing elements in titanium wear resistance to consider them for biomedical applications. Dry sliding wear tests were performed under =lubricated conditions using a ball-on-plate tribometer (UMT) with reciprocating lineal movement of 1 Hz frequency at different loads (2 and 5 N) and against two counterface materials (alumina and stainless steel) to assess the effect of these parameters on wear. The results indicated an improvement in wear resistance for all the modified Ti surfaces. Metal-on-metal surfaces exhibited higher wear rate than ceramic-on-metal, and higher wear was observed for the more severe conditions. Wear rate values on modified surfaces were between 53% and 96% lower compared to pure Ti tested at 2 N, and up to 79% lower than Ti at 5 N. In both cases the highest wear reduction was observed for Ti-Mo-NH4Cl surface. The authors would like to thank the funding provided for this research by the Regional Government of Madrid (program MULTIMAT-CHALLENGE-CM, ref. S2013/MIT-2862), and by the Institute of Alvaro Alonso Barba (IAAB) of the University Carlos III of Madrid. |
| Databáze: | OpenAIRE |
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