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A Corrosion Localization Assessment of the Mild Steel Used for Nuclear Waste Package

Published online by Cambridge University Press:  21 February 2011

Masatsune Akashi
Affiliation:
Ishikawajima-Harima Heavy Industries Co., Ltd., Research Institute, 3-1-15 Toyosu, Koto-ku, Tokyo 135, Japan
Takanori Fukuda
Affiliation:
Ishikawajima-Harima Heavy Industries Co., Ltd., Research Institute, 3-1-15 Toyosu, Koto-ku, Tokyo 135, Japan
Hiroshi Yoneyama
Affiliation:
Ishikawajima-Harima Heavy Industries Co., Ltd., Research Institute, 3-1-15 Toyosu, Koto-ku, Tokyo 135, Japan
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Abstract

This paper describes a study of corrosion behavior of a mild steel as a candidate of the high-level nuclear waste package in the geological disposal situations, conducted to establish a model for estimating the corrosion allowance requirement to achieve the 1,000 year lifetime for the package. In several series of galvanostatic tests, the maximum penetration depth and the depth distribution were measured for each specimen with a sophisticated ultrasonic inspection technique. The Gumbel distribution model was successfully used in analyzing each set of data for the maximum penetration depth. Relations among the average penetration depth, the maximum penetration depth, and the corrosion allowance requirement were discussed.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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References

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