Removal null of the 2nd phase grain attaching kimono of the niobium from the zirconium - niobium alloy which was pickled

摘要

PROBLEM TO BE SOLVED: To provide a process and chemical composition for the removal of adherent niobium-rich second-phase particles (SPPs) from pickled niobium-containing zirconium alloys.;SOLUTION: The chemical composition comprising alkaline hydrogen peroxide; an alkali metal metal-silicate; and a magnesium salt is applied to the alloy surface.;COPYRIGHT: (C)2008,JPO&INPIT