Korrosionsbeständigkeitstestverfahren für Testmaterial, welches einen Metallgrundkörper und einen Beschichtungsfilm umfaßt, und Elektrolysetestmaschine

PCT No. PCT/JP97/01999 Sec. 371 Date Dec. 22, 1997 Sec. 102(e) Date Dec. 22, 1997 PCT Filed Jun. 10, 1997 PCT Pub. No. WO97/47961 PCT Pub. Date Dec. 18, 1997A process for promoting corrosion of a test material, is provided including the steps of immersing, in an electrolytic liquid, a test material...

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Hauptverfasser:	IMANAKA, TADASHI, WAKO, SAITAMA, JP, TAKEUCHI, TOSHIHIRO, WAKO, SAITAMA, JP, TAKIKAWA, KAZUNORI, WAKO, SAITAMA, JP, KANEKO, KATSUYOSHI, WAKO, SAITAMA, JP
Format:	Patent
Sprache:	ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Zusammenfassung:	PCT No. PCT/JP97/01999 Sec. 371 Date Dec. 22, 1997 Sec. 102(e) Date Dec. 22, 1997 PCT Filed Jun. 10, 1997 PCT Pub. No. WO97/47961 PCT Pub. Date Dec. 18, 1997A process for promoting corrosion of a test material, is provided including the steps of immersing, in an electrolytic liquid, a test material which is comprised of a metal blank and a coating film formed on the metal blank, and allowing a DC current to flow between the metal blank and an electrode in the electrolytic liquid while reversing the polarity of the metal blank alternately from positive to negative and vice versa, thereby causing the coating film to be at least partly peeled off the metal blank in one state of polarity and promoting corrosion of the metal blank in the reversed state of polarity. The process may also be conducted with a metal blank having a damaged portion of the coating film which exposes a portion of the surface of the metal blank underlying the coating film.