Metallographic corrosion solution and use method thereof

• Main Authors: NAN HONGQIANG, DUAN GUOWU, ZHAO XIANGLIN, CHANG YAOWEI, LIU GUANGLONG, CHEN QIN, YANG ZHIQIANG, REN DAJIN
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2018
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; PHYSICS; TESTING

The invention provides a metallographic corrosion solution and a use method thereof, relates to a corrosion solution for metallographic analysis, and particularly relates to a metallographic corrosionsolution of a C276 corrosion resistant alloy and a use method thereof. The metallographic corrosion solution is characterized by comprising the following components in parts by weight: 2-2.5g of ferric trichloride, 1.0-1.5g of barium chloride, 20-25ml of glacial acetic acid, 70-75ml of concentrated hydrochloric acid, and 20-25ml of concentrated nitric acid. The metallographic corrosion solution is applicable to metallographic corrosion of a C276 corrosion resistant alloy board and capable of clearly showing a metallographic structure of a C276 corrosion resistant alloy sample, and thus clearphase boundary and grain boundary can be realized; the particle size can be conveniently determined and the structure in crystal grains can be conveniently observed during scientific research and production, thus the technical