Preparation and Characterization of Ultrathin Stainless Steel Films

Journal Article · Thu Jun 30 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3601785· OSTI ID:21608116

Sahoo, B; Schlage, K; Roehlsberger, R ^[1]; Major, J ^[2]; Hoersten, U von; Keune, W; Wende, H ^[3]

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1. Deutsches Elektronen Synchrotron DESY, Notkestr. 85, 22607, Hamburg (Germany)
2. Max-Planck-Institut fuer Metallforschung, Heisenbergstr. 3, D-70569 Stuttgart (Germany)
3. Universitaet Duisburg-Essen, Lotharstr. 1, D-47048 Duisburg (Germany)

We report on the preparation of polycrystalline austenitic 310 ({sup 57}Fe{sub 0.55}Cr{sub 0.25}Ni{sub 0.20}) stainless steel (SS) thin films on Si substrates and the characterization of their residual magnetism via {sup 57}Fe conversion-electron Moessbauer spectroscopy (CEMS). The films were structurally characterized at room temperature by X-ray diffraction (XRD). The virgin films were found to be structurally disordered. Subsequent annealing at moderate temperatures in ultrahigh vacuum produces the ordered martensitic and austenitic SS phases. Further annealing at higher temperatures (up to temperatures where long-range diffusion into the substrate is still weak) transforms the films into the austenitic phase with no trace of a magnetic hyperfine interaction. However, when a 2 nm thick SS thin film is embedded between two carbon layers, the as prepared disordered SS film does not transform to the martensitic or austenitic SS phase irrespective of the annealing temperature, probably because the interdiffusion with C prohibits the formation of these phases.

• OSTI ID: 21608116
• Journal Information: AIP Conference Proceedings, Vol. 1347, Issue 1; Conference: ICMM-2010: International conference on magnetic materials, Kolkata (India), 25-29 Oct 2010; Other Information: DOI: 10.1063/1.3601785; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
AUSTENITIC STEELS
DIFFUSION
IRON 57
LAYERS
MAGNETISM
MARTENSITIC STEELS
MOESSBAUER EFFECT
PHASE STABILITY
PHASE STUDIES
PHASE TRANSFORMATIONS
POLYCRYSTALS
SPUTTERING
STAINLESS STEELS
SUBSTRATES
TEMPERATURE DEPENDENCE
THIN FILMS
X-RAY DIFFRACTION
ALLOYS
CARBON ADDITIONS
COHERENT SCATTERING
CRYSTALS
DIFFRACTION
EVEN-ODD NUCLEI
FILMS
HEAT TREATMENTS
HIGH ALLOY STEELS
INTERMEDIATE MASS NUCLEI
IRON ALLOYS
IRON BASE ALLOYS
IRON ISOTOPES
ISOTOPES
NUCLEI
SCATTERING
STABILITY
STABLE ISOTOPES
STEELS
TRANSITION ELEMENT ALLOYS