Zitieren Sie bitte immer diesen URN: urn:nbn:de:kobv:b43-395374
Influence of the post-weld surface treatment on the corrosion resistance of the duplex stainless steel 1.4062
- The duplex stainless steel 1.4062 (X2CrNiN22-2) is used as alternative material to austenitic stainless steels in the construction industry. The corrosion resistance of welded seams is influenced by the base material, the weld filler material, the welding process and also by the final surface treatment. The scale layer next to the weld seam can be removed by grinding, pickling, electro-polished or blasting depending on the application and the requested corrosion resistance. Blasted surfaces are often used in industrial practice due to the easier and cheaper manufacturing process compared to pickled or electro-polished surfaces. Furthermore blasting with corundum-grain is more effective than blasting with glass-beads which also lower the process costs. In recent years, stainless steel surfaces showed an unusually high susceptibility to pitting corrosion after grinding with corundum. For this reason, it is now also questioned critically whether the corrosion resistance is influenced byThe duplex stainless steel 1.4062 (X2CrNiN22-2) is used as alternative material to austenitic stainless steels in the construction industry. The corrosion resistance of welded seams is influenced by the base material, the weld filler material, the welding process and also by the final surface treatment. The scale layer next to the weld seam can be removed by grinding, pickling, electro-polished or blasting depending on the application and the requested corrosion resistance. Blasted surfaces are often used in industrial practice due to the easier and cheaper manufacturing process compared to pickled or electro-polished surfaces. Furthermore blasting with corundum-grain is more effective than blasting with glass-beads which also lower the process costs. In recent years, stainless steel surfaces showed an unusually high susceptibility to pitting corrosion after grinding with corundum. For this reason, it is now also questioned critically whether the corrosion resistance is influenced by the applied blasting agent. This question was specifically investigated by comparing grinded, pickled, corundum-grain- and glass-bead-blasted welding seams. Results of the SEM analyses of the blasting agents and the blasted surfaces will be presented and correlated with the different performed corrosion tests (potential measurement, KorroPad-test and pitting potential) on welding seams with different surface treatments.…
Autor*innen: | Paul Rosemann, C. Müller, O. Baumann, W. Modersohn, T. Halle |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | IOP Conf. Series: Materials Science and Engineering |
Jahr der Erstveröffentlichung: | 2017 |
Veröffentlichende Institution: | Bundesanstalt für Materialforschung und -prüfung (BAM) |
Verlag: | IOP Publishing |
Verlagsort: | Bristol, UK |
Jahrgang/Band: | 181 |
Ausgabe/Heft: | Conference 1 |
Erste Seite: | Article UNSP 012019, 1 |
Letzte Seite: | 9 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Freie Schlagwörter: | Corrosion resistance; Duplex stainless steels; Pitting corrosion; Surface treatment; Welding |
Veranstaltung: | 19th Chemnitz Seminar on Materials Engineering – 19. Werkstofftechnisches Kolloquium |
Veranstaltungsort: | Chemnitz, Germany |
Beginndatum der Veranstaltung: | 16.03.2017 |
Enddatum der Veranstaltung: | 17.03.2017 |
DOI: | 10.1088/1757-899X/181/1/012019 |
URN: | urn:nbn:de:kobv:b43-395374 |
ISSN: | 1757-899X |
ISSN: | 1757-8981 |
Verfügbarkeit des Dokuments: | Datei für die Öffentlichkeit verfügbar ("Open Access") |
Lizenz (Deutsch): | Creative Commons - Namensnennung |
Datum der Freischaltung: | 24.03.2017 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 29.05.2017 |
Schriftenreihen ohne Nummerierung: | Wissenschaftliche Artikel der BAM |