bei Google ScholarTitelangaben
Schafföner, Stefan ; Aneziris, Christos G. ; Berek, Harry ; Rotmann, Björn ; Friedrich, Bernd:
Investigating the corrosion resistance of calcium zirconate in contact with titanium alloy melts.
In: Journal of the European Ceramic Society.
Bd. 35
(2015)
Heft 1
.
- S. 259-266.
ISSN 0955-2219
DOI: https://doi.org/10.1016/j.jeurceramsoc.2014.08.031
Abstract
This study investigated the corrosion behavior of calcium zirconate crucibles during vacuum induction melting of Ti–6Al–4V. Due to its production method the fused calcium zirconate raw material contained a significant amount of cubic zirconia as a second phase. Thus, the raw material composition was adjusted by adding calcium hydroxide as a calcia precursor during the crucible production. Crucibles with four different compositions were tested in contact with Ti–6Al–4V melts. The corroded crucibles were investigated by SEM in combination with EDX and EBSD, whereas a dissolution of the zirconia phase by the alloy melt was observed. The calcium zirconate phase however remained unaffected. This result compared well with the determined zirconium and oxygen contamination of the melts, which decreased substantially with a higher calcium zirconate content of the crucibles. An overstoichiometric composition in terms of calcia, however, caused the evaporation of calcia and should therefore be avoided.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | Refractories; Calcium zirconate; Vacuum induction melting; Titanium alloy; Electron backscatter diffraction |
| Institutionen der Universität: | Fakultäten Fakultäten > Fakultät für Ingenieurwissenschaften Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Keramische Werkstoffe Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Keramische Werkstoffe > Lehrstuhl Keramische Werkstoffe - Univ.-Prof. Dr.-Ing. Stefan Schafföner |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 600 Technik, Medizin, angewandte Wissenschaften 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 25 Mai 2023 07:34 |
| Letzte Änderung: | 25 Mai 2023 07:34 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/76261 |