Cracking Investigation of Vaporizer Tubes
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This article describes the results of an investigation into failures of washing phenol vaporizer tubes. Thorough analyses including visual examination, chemical testing, fractography, metallography, heat treatment, and hardness testing have shown that the vaporizer tube failure is attributed to intergranular corrosion. The failure contributing factors are identified and elucidated.
KeywordsAustenitic stainless steel 304 Intergranular corrosion Heat treatment Vaporizer tube
- 1.R.B. Moler, Prediction of Low Temperature Sensitization of Austenitic Stainless Steels, The Nuclear Regulatory Commission, Division of High Level Waste Management, Technical Review Branch, May 1988Google Scholar
- 2.NACE Standard RP0170-2004, Protection of Austenitic Stainless Steels and Other Austenitic Alloys from Polythionic Acid Stress Corrosion Cracking During Shutdown of Refinery Equipment, NACE International, 2004Google Scholar