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Influence of Microstructure on Nitrogen Diffusion in Fe‐Cr‐Ni Thin Films
Author(s) -
Bohne Yvonne,
Manova Darina,
Mändl Stephan,
Neumann Horst,
Rauschenbach Bernd
Publication year - 2007
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200731605
Subject(s) - materials science , nitriding , microstructure , thermal diffusivity , austenite , diffusion , metallurgy , nitrogen , thin film , grain size , austenitic stainless steel , deposition (geology) , sputtering , phase (matter) , analytical chemistry (journal) , composite material , layer (electronics) , nanotechnology , chemistry , thermodynamics , corrosion , paleontology , physics , organic chemistry , chromatography , sediment , biology
Ion beam sputter deposition of austenitic stainless steel leads to the formation of a model system for surface adsorption, diffusion and phase formation during nitrogen implantation at elevated temperatures. The same dependence on the base pressure as for bulk material was found for the nitriding efficiency while a similar diffusivity was observed, despite a grain size of 50–100 nm for the thin films. Even at 360 °C, CrN was observed after nitrogen implantation for the films, compared with expanded austenite formed in bulk steel.