Abstract
An oxide replica method has been developed which is suitable for the electron microscope examination of the surfaces of stainless steel, nickel, and high nickel alloys. The oxide film is produced on the metal surface by oxidation in a molten nitrate solution and is chemically stripped from the base metal by a bromine-methanol solution. Replicas of this type have been used to study deep-etched structures, preferential etch attack, and secondary phases in austenitic and ferritic stainless steel and in nickel.

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