Two cases of high alloy austenitic steel failures
Journal Title: Biuletyn Instytutu Spawalnictwa - Year 2016, Vol 60, Issue 5
Abstract
The article presents failures of structures made of austenitic steels. The first part is concerned with accelerated (centrifugally) cast tubes (ϕ 52.6 x 5.8 mm) made of steel 25-35 CrNi exposed to high temperature and severe reducing environment (ac >> 1). The second part of the article presents test results related to a water meter element and a cooling water pipeline made of austenitic steel. In both cases, a relatively short period of service was accompanied by the appearance of leaks. The tests revealed that the failures were triggered by microbiological corrosion caused by a sulphur reducing bacteria and not by the welding technology applied.
Authors and Affiliations
Peter Bernasovský, Annamária Petráňová
Keywords
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- EP ID EP256848
- DOI 10.17729/ebis.2016.5/7
- Views 64
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