Hostname: page-component-77c89778f8-cnmwb Total loading time: 0 Render date: 2024-07-23T00:28:10.678Z Has data issue: false hasContentIssue false
  • English
  • Français

Analysis of the Corrosion Products Formed on Ti and a Ti-Pd Alloy During Exposure in Hot Water

Published online by Cambridge University Press:  15 February 2011

Ingemar Olefjord  and
HÅkan Mattsson
Ingemar Olefjord
Affiliation:
Department of Engineering Metals, Chalmers University of Technology, S–412 96 Göteborg, Sweden
HÅkan Mattsson
Affiliation:
Department of Engineering Metals, Chalmers University of Technology, S–412 96 Göteborg, Sweden
Get access

Abstract

This is a preliminary report dealing with the surface analysis of reaction products formed on Ti and a Ti-Pd alloy during their exposure in hot water. The compositions of the aqueous media were varied with respect to the dissolved oxygen and the content of chloride ions. The temperature was 60°C and the exposure times were 10 min. and 6 months. Work is in progress in which samples are exposed at 80°C and 95°C in the aqueous solutions. Surface analysis was also performed on a sample which had been exposed in water-saturated bentonite.

It appears from the ESCA spectra that the oxide products formed on the surface consist of TiO The results also indicate that the thickness of the film formed at 60°C in water is in the range 50 Å to 100 Å. This is somewhat more than that obtained after exposure in water at room temperature. Exposure for 6 months increases the thickness of the oxide two to three times compared to that obtained during the short exposure at 60°C. The analyses of the samples that had been embedded in bentonite indicate that the surface reaction products are thinner than those found on the surface after exposure in an open vessel.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 11: Symposium – Scientific Basis for Nuclear Waste Management V , 1981 , 669
Copyright
Copyright © Materials Research Society 1982

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Mattsson, E. et al. , KBS Teknisk Rapport, Kärnbränslesdkerhet, Fack, 102 40 Stockholm.Google Scholar
2. Allard, B. and Ball, G.W., J. Environ. Sci. Health, 14 (1979) 511.Google Scholar
3. Olefjord, I. et al. , Applications of Surface Science, 6 (1980) 241.CrossRefGoogle Scholar
4. Ramqvist, L. et al. , J. Phys. Chem. Solids, 30 (1969) 1835.CrossRefGoogle Scholar
5. Simen, D. et al. , Ed. Kimura, H. and Izumi, O., Proc. of the Fourth International Conference on Titanium, Titanium 80, Kyoto, Japan, AIME, p. 2859.Google Scholar
6. Olefjord, I., Met. Sci. and Engineering, 42 (1980) 161.10.1016/0025-5416(80)90025-7CrossRefGoogle Scholar
7. Sayers, C.M. and Armstrong, N.R., Surface Science, 77 (1978) 301.CrossRefGoogle Scholar
8. Olefjord, I. and Fischmeister, H., Corrosion Science, 15 (1975) 697.CrossRefGoogle Scholar
9. Marcus, P. and Olefjord, I., Surface and Interface Analysis, 4 (1982) 29.CrossRefGoogle Scholar