Projekte pro Jahr
Abstract
The hot ductility behaviour of a Ti-Nb micro alloyed steel was investigated to evaluate the probability of surface
crack formation during the continuous casting process, by performing hot tensile tests. The testing
temperatures are ranging from 1100 °C to 700 °C. The effects of testing temperature range and deformation
rate on hot ductility were investigated. The results show that this steel exhibits poor ductility over almost the
whole testing temperature range. The ductility starts to decrease at 1000 °C in the single phase γ-region,
characterized by grain boundary sliding and surface cracks, reaches a minimum in the two-phase α-γ-region
at 750 °C and slightly increases with decreasing testing temperature. Furthermore, low deformation rates
severely decrease the ductility behaviour. Microstructural examinations and supplementary thermo-kinetic
computer simulations revealed distinct Ti-Nb precipitation throughout the microstructure being responsible for
the deteriorated materials hot ductility.
crack formation during the continuous casting process, by performing hot tensile tests. The testing
temperatures are ranging from 1100 °C to 700 °C. The effects of testing temperature range and deformation
rate on hot ductility were investigated. The results show that this steel exhibits poor ductility over almost the
whole testing temperature range. The ductility starts to decrease at 1000 °C in the single phase γ-region,
characterized by grain boundary sliding and surface cracks, reaches a minimum in the two-phase α-γ-region
at 750 °C and slightly increases with decreasing testing temperature. Furthermore, low deformation rates
severely decrease the ductility behaviour. Microstructural examinations and supplementary thermo-kinetic
computer simulations revealed distinct Ti-Nb precipitation throughout the microstructure being responsible for
the deteriorated materials hot ductility.
Originalsprache | englisch |
---|---|
Titel | METAL 2019 |
Untertitel | 28th International Conference on Metallurgy and Materials ; proceedings |
Erscheinungsort | Ostrava |
Herausgeber (Verlag) | TANGER Ltd., Ostrava |
Seiten | 84 - 89 |
Seitenumfang | 6 |
ISBN (elektronisch) | 978-80-87294-92-5 |
Publikationsstatus | Veröffentlicht - 15 Nov. 2019 |
Veranstaltung | METAL 2019: 28th International Conference on Metallurgy and Materials - Brno, Tschechische Republik Dauer: 22 Mai 2019 → 24 Mai 2019 |
Konferenz
Konferenz | METAL 2019 |
---|---|
Land/Gebiet | Tschechische Republik |
Ort | Brno |
Zeitraum | 22/05/19 → 24/05/19 |
Fields of Expertise
- Advanced Materials Science
Fingerprint
Untersuchen Sie die Forschungsthemen von „HOT DUCTILITY BEHAVIOR OF A CONTINUOUSLY CAST Ti-Nb MICROALLOYED STEEL“. Zusammen bilden sie einen einzigartigen Fingerprint.Projekte
- 1 Abgeschlossen