Failure analysis of firewater pipeline

(in lingua inglese)

The severe pitting attack at the top inner portion of the pipe was due to highly oxygenated water. While, the bottom surface of the pipe suffered from under deposit corrosion problem. The deposition on the bottom surface of the pipe is an evidence of stagnancy or a very low flow rate of water in this area of the system. No material upgrade is required as the carbon steel is suitable material for this application however, stagnant conditions or very low flow rates must be avoided.

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Fonte: Articolo Case Studies in Engineering Failure Analysis, 2014
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