Gents, I want to ask about the cause of pitting corrosion test (G48). Our product is inconel manually overlaid on API X65QS. the specimen passed on the chemcial composition test as client specification (Fe is 8%, Cr is about 20% and Ni is about 59%). As our experience, these kind of result shows no issue for pitting corrosion although the Fe content is above 5%. The microstructure also doesn't shows any intermetallic phase.
Is there any other potentially cause of pitting corrosion than chemical composition for overlay products?
thx all.
Is there any other potentially cause of pitting corrosion than chemical composition for overlay products?
thx all.