- AutorIn
- Petre Flaviu Gostin
- Dimitri EigelTechnische Universität Dresden, Department of Chemistry and Food Chemistry, Faculty of Science, Germany
- Daniel Grell
- Jürgen Eckert
- Eberhard Kerscher
- Annett Gebert
- S. Scudino
- C. Yang
- J. Eckert
- Titel
- Comparing the pitting corrosion behavior of prominent Zr-based bulk metallic glasses
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-390322
- Quellenangabe
- Journal of materials research
Erscheinungsjahr: 2015
Jahrgang: 30
Heft: 2
Seiten: 233-241
ISSN: 0884-2914
E-ISSN: 2044-5326 - Erstveröffentlichung
- 2015
- Abstract (EN)
- Five well-known Zr-based alloys of the systems Zr–Cu–Al–(Ni–Nb, Ni–Ti, Ag) (Cu 5 15.4–36 at.%) with the highest glass-forming ability were comparatively analyzed regarding their pitting corrosion resistance and repassivation ability in a chloride-containing solution. Potentiodynamic polarization measurements were conducted in the neutral 0.01 M Na₂SO₄ 1 0.1 M NaCl electrolyte and local corrosion damages were subsequently investigated with high resolution scanning electron microscopy (HR-SEM) coupled with energy dispersive x-ray spectroscopy (EDX). Both pitting and repassivation potential correlate with the Cu concentration, i.e., those potentials decrease with increasing Cu content. Pit morphology is not composition dependent: while initially hemispherical pits then develop an irregular shape and a porous rim. Corrosion products are rich in Cu, O, and often Cl species. A combination of low Cu and high Nb or Ti contents is most beneficial for a high pitting resistance of Zr-based bulk metallic glasses. The bulk glassy Zr₅₇Cu₁₅.₄Al₁₀Ni₁₂.₆Nb₅ (Vit 106) and Zr₅₂.₅Cu₁₇.₉Al₁₀Ni₁₄.₆Ti₅ (Vit 105) alloys exhibit the highest pitting resistance.
- Andere Ausgabe
- Link zum Artikel der zuerst in der Zeitschrift 'Journal of materials research' erschienen ist
DOI: 10.1557/jmr.2014.371 - Freie Schlagwörter (DE)
- Lochfraßbildung, Rasterelektronenmikroskopie, Repassivierungspotenzial, Pitmorphologie
- Freie Schlagwörter (EN)
- Pitting, scanning electron microscopy, repassivation potential, pit morphology
- Klassifikation (DDC)
- 670
- Verlag
- Cambridge University Press, Cambridge
- Förder- / Projektangaben
- Deutsche Forschungsgemeinschaft (DFG)
SPP 1594
Spannungs- und Schwingungsrisskorrosion in Zr-basierten massiven metallischen GläsernID: 224063632 - Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-390322
- Veröffentlichungsdatum Qucosa
- 17.04.2020
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis