Long-Term Immersion Testing of Alloy 22 and Titanium Grade 7 Double U-bend Specimens
Double U-bend specimens of Alloy 22 (N06022) and Titanium Grade 7 (R52400) were exposed to a naturally aerated concentrated Basic Saturated Water (BSW) electrolyte at 105 C for over six years. Different type of discoloration of the Ti Gr 7 and Alloy 22 specimens was observed. General Corrosion was minimal and not distinguishable under a scanning electron microscope. None of the tested specimens suffered environmentally assisted cracking (EAC) or localized corrosion under the tested conditions. The specimens retained their residual stress after the long environmental exposure.
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- Conference: Presented at: 2007 ASME Pressure Vessels and Piping Division Conference, San Antonio, TX, United States, Jul 22 - Jul 26, 2007
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- Lawrence Livermore National Laboratory (LLNL), Livermore, CA
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- United States
- 36 MATERIALS SCIENCE; ALLOYS; CORROSION; ELECTROLYTES; ELECTRON MICROSCOPES; ENVIRONMENTAL EXPOSURE; PRESSURE VESSELS; TESTING; TITANIUM; WATER
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