Cyclic nanoindentation studies on CrN thin films prepared by RF sputtering on Zr-based metallic glass
- Laboratoire de Genie Mecanique LGM-MA05, ENIM, Av. Ibn El Jazzar, 5019 Monastir (Tunisia)
- Laboratoire d'etudes des Milieux Nanometriques, UEVE, Bd F. Mitterand, 91025 Evry Cedex (France)
Cyclic nanoindentation tests were carried out to study the influence of the chromium nitride thin films on the mechanical properties of Zr-based metallic glass. Chromium nitride thin coatings have been deposited on Zr{sub 50}Cu{sub 40}Al{sub 10} metallic glass substrate by RF sputtering. The deposition process was done at room temperature under nitrogen reactive gas using a metallic chromium target. The CrN films have a thickness of 300 nm. Several cyclic nanoindentation measurements were conducted on CrN films and Zr{sub 50}Cu{sub 40}Al{sub 10} metallic glass substrate samples at various loading rate values. We have found that the coated metallic glass sample shows high mechanical properties such as hardness and reduced elastic modulus. Cyclic nanoindentation results show a hardening behaviour for these CrN coatings. Moreover, the CrN coated on Zr-based metallic glass was found to have a high value of resistance to crack propagation, as being analysed through the SEM pictures of the residual Vickers indentation impressions.
- OSTI ID:
- 21510171
- Journal Information:
- AIP Conference Proceedings, Vol. 1315, Issue 1; Conference: AMPT2010: International conference on advances in materials and processing technologies, Paris (France), 24-27 Oct 2010; Other Information: DOI: 10.1063/1.3552444; (c) 2010 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM COMPOUNDS
CHROMIUM NITRIDES
COATINGS
COPPER COMPOUNDS
CRACK PROPAGATION
DEPOSITION
HARDENING
HARDNESS
MECHANICAL PROPERTIES
METALLIC GLASSES
SCANNING ELECTRON MICROSCOPY
SPUTTERING
SUBSTRATES
TEMPERATURE RANGE 0273-0400 K
THICKNESS
THIN FILMS
ZIRCONIUM COMPOUNDS
CHROMIUM COMPOUNDS
DIMENSIONS
ELECTRON MICROSCOPY
FILMS
MICROSCOPY
NITRIDES
NITROGEN COMPOUNDS
PNICTIDES
TEMPERATURE RANGE
TRANSITION ELEMENT COMPOUNDS