at Google ScholarTitle data
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.
Vol. 35
(2015)
Issue 1
.
- pp. 259-266.
ISSN 0955-2219
DOI: https://doi.org/10.1016/j.jeurceramsoc.2014.08.031
Abstract in another language
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.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Keywords: | Refractories; Calcium zirconate; Vacuum induction melting; Titanium alloy; Electron backscatter diffraction |
| Institutions of the University: | Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Ceramic Materials Faculties > Faculty of Engineering Science > Chair Ceramic Materials > Chair Ceramic Materials - Univ.-Prof. Dr.-Ing. Stefan Schafföner |
| Result of work at the UBT: | No |
| DDC Subjects: | 600 Technology, medicine, applied sciences 600 Technology, medicine, applied sciences > 620 Engineering |
| Date Deposited: | 25 May 2023 07:34 |
| Last Modified: | 25 May 2023 07:34 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/76261 |