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Determination of causes of accelerated local corrosion of austenitic steels in water supply systems

Abstract

This paper concerns an inspection of a water supply system, made of AISI 304 steel, which showed signs of local corrosion at the weld. Such corrosion caused material perforation after very short periods of operation. It was revealed that steel was sensitised during the welding process. It was also proven that chromium micro-segregation occurred in the alloy leading to galvanic cell formation which initialised the process of pitting corrosion. This paper is a study of corrosion attack types due to negligence during and after the process of welding of the system.

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Keywords

Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
CONSTRUCTION AND BUILDING MATERIALS no. 64, pages 246 - 252,
ISSN: 0950-0618
Language:
English
Publication year:
2014
Bibliographic description:
Ryl J., Wysocka J., Darowicki K.: Determination of causes of accelerated local corrosion of austenitic steels in water supply systems// CONSTRUCTION AND BUILDING MATERIALS. -Vol. 64, (2014), s.246-252
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.conbuildmat.2014.04.058
Verified by:
Gdańsk University of Technology

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