Effect of mass transfer and segregation on the formation of superhard nanostructured Ti-Hf-N(Fe) catings
Autor: | F. F. Komarov, V. M. Beresnev, M. V. Kaverin, Alexander G. Ponomarev, A. D. Pogrebnyak, D. A. Kolesnikov, S. S. Mel’nik |
---|---|
Rok vydání: | 2012 |
Předmět: | |
Zdroj: | Technical Physics Letters. 38:623-626 |
ISSN: | 1090-6533 1063-7850 |
DOI: | 10.1134/s1063785012070103 |
Popis: | Superhard nanostructured Ti-Hf-N(Fe) coatings are prepared. The formation of local regions of (Ti, Hf)N, FeN, and Hf is detected using μ-PIXE (ion microbeam). It is revealed that the synthesized coatings have a nanohardness of 48 ± 1 GPa and are composed of nanograins with a size of 4.8–10.6 nm, which are enveloped by finer entities of other phases (Ti, Fe)N and FeN. There is a good correlation between the results derived by XRD, TEM, AFM, and SEM and microanalysis, which in turn are complemented by the analysis results obtained using an ion microbeam and PIXE. |
Databáze: | OpenAIRE |
Externí odkaz: |