Process Industries - Materials Applications and Experiences

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The Materials Applications and Experiences (Process Industries) Technical Community of Interest is a group of people (both AMPP members and nonmembers) who have come together for the purpose of furthering a common cause by sharing wisdom, knowledge, information, and/or data  for exchanging and compiling information on the experience of various metallic materials as related to properties, corrosion resistance, fabrication, weldability, repair techniques, and application in various process environments.

 Test for verify the passivation of components in Aluminum bronze

Marco Di Nicola's profile image
Marco Di Nicola posted 07-15-2026 05:18 AM

Good Morning

I'm a AMPP member n.580543. Currently i work in a Nuclear project , and we have a problem to verify if some Aluminium bronze components are passivation or not or partially. The componets was pinckling and passivated by process using suggest reagents by the supplier . But after the process a wype test was apply with negative results ( stain of yellow colour ). There it is some specific and definitive test ot method to verified if the component are fully pasivated or not ( as for the stainless steel )?
Thank and best regards
Marco Di Nico