Activity Measurement for Surface Segregated Type 316 Stainless Steel by Mass Spectrometry and Auger Electron Spectroscopy

Tadafumi Koyama; Masayoshi Kanno; Michio Yamawaki

doi:10.5702/massspec.35.56

REGULAR PAPERS

Activity Measurement for Surface Segregated Type 316 Stainless Steel by Mass Spectrometry and Auger Electron Spectroscopy

Tadafumi Koyama, Masayoshi Kanno, Michio Yamawaki

Author information

Keywords: Vapor pressure measurement, Themodynamic activity, Type 316 austenitic stainless steel, Surface segregation, Knudsen effusion method, Auger electron spectroscopy (AES), Mass spectrometry

JOURNAL FREE ACCESS

1987 Volume 35 Issue 2 Pages 56-62

DOI https://doi.org/10.5702/massspec.35.56

Details

Abstract

Vaporization of Type 316 stainless steel was studied by means of the mass spectrometer-Knudsen cell combination method together with the surface analysis by Auger electron spectroscopy. Anomalously large apparent activity coefficient was observed for chromium component, which was attributed to its surface segregation as determined by surface analysis. Surface analysis is concluded to be an important tool in the activity measurement of solid solution systems to be performed with the Knudsen effusion method.

Corresponding author

Register with J-STAGE for free!