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Prediction of the remaining lifetime of stainless steels under conditions of stress corrosion cracking

✍ Scribed by M. Tandler; L. Vehovar; V. Doleček; U. Rotnik

Publisher
John Wiley and Sons
Year
2003
Tongue
German
Weight
251 KB
Volume
54
Category
Article
ISSN
0947-5117

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✦ Synopsis

Abstract

The prediction of the lifetime of metal structures and equipment under conditions of stress corrosion is very complicated because of the complexity of this process of degradation. Recently a new method, based on the so‐called corrosion elongation curves, has been found, which can be used to predict the time to failure under these conditions. By upgrading of these curves (and thus obtaining Upgraded Corrosion Elongation Curves – UCEC's) it has been possible to obtain a precise definition of the time needed for the initiation of the corrosion crack, and for its stable growth. It is upon this basis that diagrams for the prediction of remaining lifetime (DPRL's) have been developed. DPRL's can also be used to predict the values of various critical parameters which have to be achieved if a stress corrosion crack is to occur.

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