Nanomechanical and Nanotribological Properties of Nanostructured Coatings of Tantalum and Its Compounds on Steel Substrates
- Galina Melnikova
- Tatyana Kuznetsova
- Vasilina Lapitskaya
- Agata Petrovskaya
- Sergei Chizhik
- Anna Zykova
- Vladimir Safonov
- Sergei Aizikovich
- Evgeniy Sadyrin
- Weifu Sun
- Stanislav Yakovin
DOIAbstract
The present paper addresses the problem of identification of microstructural, nanomechanical, and tribological properties of thin films of tantalum (Ta) and its compounds deposited on stainless steel substrates by direct current magnetron sputtering. The compositions of the obtained nanostructured films were determined by energy dispersive spectroscopy. Surface morphology was investigated using atomic force microscopy (AFM). The coatings were found to be homogeneous and have low roughness values (<10 nm). The values of microhardness and elastic modulus were obtained by means of nanoindentation. Elastic modulus values for all the coatings remained unchanged with different atomic percentage of tantalum in the films. The values of microhardnes...
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