Community Research and Development Information Service - CORDIS

Abstract

The aim of the present study is to investigate the long term corrosion behaviour of different candidate container materials and waste forms in geological disposal conditions, by means of in situ testing of 12 corrosion tubes which were installed in the underground laboratory. The investigations indicate that only carbon steel exhibits significant average corrosion rates in direct contact with clay. All of the carbon steel samples show severe signs of pitting attack with pits of up to 240 µm detected. Average corrosion rates of the order of 2 µm per year (16 C), 5 µm per year (90 C) and 9 µm per year (170 C) were calculated. The so called corrosion-resistant materials remain intact between 16 C and 170 C, a result consistent with the negligible reductions in thickness. In view of the results obtained, the idea of using carbon steel as a possible candidate container material should be rejected. However, stainless steel looks a very promising candidate and should be investigated in more detail.

Additional information

Authors: KURSTEN B, SCK/CEN, Mol (BE);CORNÉLIS B, SCK/CEN, Mol (BE);LABAT S, SCK/CEN, Mol (BE);VAN ISEGHEM P, SCK/CEN, Mol (BE)
Bibliographic Reference: EUR 17105 EN (1997) 128pp., FS, ECU 21.50
Availability: Available from the (2)
ISBN: ISBN 92-827-8830-X
Record Number: 199710112 / Last updated on: 1997-04-01
Category: PUBLICATION
Original language: en
Available languages: en