High temperature oxidation of stainless steel AISI316L in air plasma

• DOI: 10.1016/j.apsusc.2008.06.017
• Publication Date: 2008-06-14T08:52:56Z
• Authors: Alenka Vesel; Miran Mozetic; Aleksander Drenik; Nina Hauptman; Marianne Balat-Pi...
• Keywords: [SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment; [SPI.PLASMA]Engineering Sciences [physics]/Plasmas; 02 engineering and technology; 0210 nano-technology; [SPI.MAT]Engineering Sciences [physics]/Materials

Abstract A study on surface oxidation of AISI316L stainless steel surface was performed. Stainless steel was oxidized in air plasma with a high degree of dissociation of oxygen molecules of about 70%. The resultant flux of oxygen atoms to the surface was about 1 × 10 24 m −2 s −1 . The oxidation was performed at high temperatures ranging up to 1250 K. The oxidation time was 5 min. After oxidation the surface of the samples was analyzed by different methods including Auger electron depth profiling (AES), X-ray photoelectron spectroscopy (XPS), scanning electron spectroscopy (SEM) and X-ray diffraction (XRD). The microstructure and composition of the surface were temperature dependent. In all cases high Cr concentration was observed on the surface after oxidation at a temperature above 600 K. With increasing temperature Mn concentration at the surface increased as well. Below 1000 K the oxide film was uniform, while above 1000 K islands with large spinel particles were observed to appear.