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- Title
Oxygen diffusion in grain boundaries: a ToF-SIMS investigation on hot-rolled steel sheets.
- Authors
Holzweber, Markus; Kriegl, Markus; Schintlmeister, Arno; Paesold, Dieter; Danninger, Herbert; Hutter, Herbert
- Abstract
A study of grain boundary diffusion of oxygen in hot-rolled steel sheets is carried out by means of time-of-flight secondary-ion-mass-spectrometry (ToF-SIMS). This involves polishing of the sample surface prior to the oxygen exposure. A nickel layer deposited after exposure ensures a homogeneous extraction field for ToF-SIMS measurements at the Ni-steel interface. The sample is bevelled at an angle of 11.5° to spread up the diffusion pathway by a factor of 5. The oxygen distribution is then acquired via ToF-SIMS in imaging mode from which diffusion parameters are calculated according to the Whipple-Le Claire's approach.
- Publication
Analytical and bioanalytical chemistry, 2011, Vol 400, Issue 3, p659
- ISSN
1618-2650
- Publication type
Journal Article
- DOI
10.1007/s00216-011-4769-x