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