at Google ScholarTitle data
Dickes, Daniel ; Öztürk, Beyza ; Baier, Felix ; Berger, Pascal ; George, Easo P. ; Völkl, Rainer ; Galetz, Mathias C. ; Glatzel, Uwe:
Surface hardening of TiZrNbHfTa high entropy alloy via oxidation.
In: Corrosion Science.
Vol. 217
(2023)
.
- 111159.
ISSN 0010-938X
DOI: https://doi.org/10.1016/j.corsci.2023.111159
Abstract in another language
We investigate the oxidation of TiZrNbHfTa high entropy alloy between 550 °C and 650 °C as a surface hardening method. Coarse-grained specimens with grain boundaries perpendicular to the surface exhibit catastrophic oxidation, while ultrafine-grained, cold-rolled specimens show a continuous mass gain and the formation of an adherent, µm-sized, vitreous oxide layer. Underneath, TiZrNbHfTa decomposes into a bcc- and an hcp-phase, while selective internal oxidation of hafnium and zirconium occurs upon oxygen inward diffusion. Oxygen concentration- and microhardness-depth profiles confirm an increase in oxygen concentration and hardness at the surface, raising the initial hardness by four times to 1522 ± 64 HV0.5.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Institutions of the University: | Faculties > Faculty of Engineering Science > Chair Metals and Alloys > Chair Metals and Alloys - Univ.-Prof. Dr.-Ing. Uwe Glatzel Profile Fields > Advanced Fields Profile Fields > Advanced Fields > Advanced Materials Research Institutions Research Institutions > Central research institutes Research Institutions > Central research institutes > Bayreuth Center for Material Science and Engineering - BayMAT |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 000 Computer Science, information, general works 600 Technology, medicine, applied sciences 600 Technology, medicine, applied sciences > 620 Engineering |
| Date Deposited: | 06 Sep 2023 06:20 |
| Last Modified: | 06 Sep 2023 06:20 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/86777 |