WIT Press

An Evaluation Of Mechanisms Of Stress Corrosion Initiation In High-pressure Pipelines And Their Welds

Price

Free (open access)

Paper DOI

10.2495/SURF950181

Volume

8

Pages

8

Published

1995

Size

1,170 kb

Author(s)

I. Cerny, V. Linhart & I. Furbacher

Abstract

The stress corrosion cracking (SCO) of two types of pipeline steels in a carbonate solution has been eva- luated on the basis of a quantitative statistics of microcracks initiation and growth and of a qualitati- ve evaluation of their character. The influence of a surface microstructure on SCO initiation and quan- titatively evaluated surface SCC damage in different conditions have been the most important results. 1 Introduction Stress corrosion cracking is a significant and dange- rous mechanism of a pipeline damage, besides mecha- nisms caused by external forces and besides material causes. A considerable attention has been paid to the stress corrosion recently. Complexity of the problems and an existence of a relatively unfinished unambigu- ous knowle

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