PROTECTING FERRITIC STAINLESS STEEL FROM CREVICE AND PITTING CORROSION

A process for protecting ferritic stainless steel against crevice and pitting corrosion in an environment corrosive thereto comprises covering a portion thereof with a dissimilar stainless steel which is less noble than the ferritic steel in the corrosive environment.

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Bibliographische Detailangaben
Hauptverfasser:	JAMES BYRON HILL, MARK JOHN JOHNSON
Format:	Patent
Sprache:	eng
Schlagworte:	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 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
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Beschreibung
Zusammenfassung:	A process for protecting ferritic stainless steel against crevice and pitting corrosion in an environment corrosive thereto comprises covering a portion thereof with a dissimilar stainless steel which is less noble than the ferritic steel in the corrosive environment.