Cyclic Nanoindentation and Finite Element Analysis of Ti/TiN and CrN Nanocoatings on Zr-Based Metallic Glasses Mechanical Performance
| Autor: | Aymen Tekaya, Sid Labdi, Hamza A. Ghulman, Tarek Benameur |
|---|---|
| Přispěvatelé: | Laboratoire du génie mécanique, École Nationale d’Ingénieurs de Monastir (ENIM), Université de Monastir - University of Monastir (UM)-Université de Monastir - University of Monastir (UM), Umm Al-Qura University, Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (LAMBE), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Université d'Évry-Val-d'Essonne (UEVE)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Seine-Université Paris-Seine-Université d'Évry-Val-d'Essonne (UEVE)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2014 |
| Předmět: |
nanocoatings
Materials science Amorphous metal Mechanical Engineering cyclic nanoindentation Metallurgy Zr-based metallic glasses chemistry.chemical_element engineering.material Nanoindentation modeling and simulation chemistry Coating Mechanics of Materials Sputtering [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] engineering Shear stress General Materials Science Thin film Tin Penetration depth |
| Zdroj: | Journal of Materials Engineering and Performance Journal of Materials Engineering and Performance, 2014, 23 (12), pp.4259-4270. ⟨10.1007/s11665-014-1212-4⟩ Journal of Materials Engineering and Performance, Springer Verlag/ASM International, 2014, 23 (12), pp.4259-4270. ⟨10.1007/s11665-014-1212-4⟩ |
| ISSN: | 1544-1024 1059-9495 |
| DOI: | 10.1007/s11665-014-1212-4 |
| Popis: | International audience; Cyclic depth-sensing nanoindentation tests are carried out to unravel the effect of monolithic and multilayer thin coatings on load-bearing capacity and stress distribution in the coating-Zr-based metallic glass systems. Thin films of TiN, CrN, and Ti/TiN multilayer, having thickness of 300nm, are deposited on Zr60Ni10Cu20Al10 and Zr50Cu40Al10 metallic glasses by RF sputtering technique. Strain softening occurs over several cycles in Zr-based metallic glasses, CrN, and TiN films as evidenced by a disparity between the unloading and reloading sequences. However, the cyclic nanoindentation of Ti/TiN multilayer coating results in a hysteresis loop in the load-depth profiles, and this event depends on the number of cycles and the loading rates. AFM and SEM characterization of remnant imprints revealed microcraks and crack-like shear bands in nanocoatings and Zr-based metallic glasses, respectively. Based on shear-fracture driven plastic flow of the coatings, a modified cavity model is used to determine the shear stress evolution as a function of penetration depth. The finite-element simulations predicted the stress distribution beneath the indenter and are well consistent with the evolving trend of shear stress obtained from experiments. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink