REMOVAL OF ADHERENT NIOBIUM-RICH SECOND-PHASE PARTICLE FROM PICKLED NIOBIUM-CONTAINING ZIRCONIUM ALLOY

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