Areva Completes Testing of Cavitation Peening Project

 Areva Completes Testing of Cavitation Peening Project

Areva completed production validation testing of its first-of-a-kind cavitation peening process on an operating nuclear reactor vessel closure head (RVCH).
The milestone included completing full-scale simulated field testing of all equipment and processes on a mockup reactor vessel head, mirroring the conditions that the team will experience when conducting the cavitation at Exelon's (NYSE: EXC) Byron Unit 2 in Illinois in April.
Ultra-high-pressure cavitation peening uses ultra-high-pressure water jets to generate vapor bubbles, which collapse with enough force to create beneficial compressive stresses on the components’ internal surfaces. It is designed to prevent nuclear reactor component stress corrosion cracking.
After work is completed at Byron 2, Areva will then complete cavitation peening on Unit 1, as well as Exelon’s Braidwood 1 and 2. Byron and Braidwood have two pressurized water reactors each.
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