Preliminary communication

Oxide and nitride protective layers formed on stainless steel by thermal treatment: SEM, AES, WDS and corrosion measurements

DJ. Mandrino
M. Godec
A. Kocijan
M Lamut
M. Torkar
M. Jenko

Abstract

Protective oxide and/or nitride layers on AISI 321 stainless steel were prepared by thermal treatment in air and two controlled atmospheres in a laboratory simulation of an actual technological procedure. Samples’ surface was imaged by Scanning Electron Microscopy (SEM), elemental composition of the substrates was checked by Wavelength Dispersive Spectroscopy (WDS) and depth profiles of the samples were measured by Auger Electron Spectroscopy (AES). Since protective layer thicknesses were found to be of the order of hundreds of nanometers an attempt was made to obtain some fast averaged information about layers composition by Wavelength Dispersive Spectroscopy (WDS) with appropriately adjusted primary beam energy. Electrochemical corrosion testing was also performed on samples.

Keywords

stainless steel; thermal treatment; surface; AES; WDS

Hrčak ID:

19528

URI

https://hrcak.srce.hr/19528

Publication date:

1.4.2008.

Article data in other languages: croatian

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