In-field Rapid Metallographic Inspection for P91 Steel

An in-field rapid metallographic inspection method for P91 steel was introduced. With the modified chemical reagent, the process of grinding and polishing could be simplified and the metallographic specimen preparation time would be greatly shortened compared to the traditional metallographic specimen preparation method. At the same time, the metallographic specimen preparation effect of the improved method is rather good. The application practice shows that this method has the characteristics of easy handling and fast specimen preparation rate, and it can increase greatly the efficiency of in-field metallographic inspection for P91 steel.