Szczegóły publikacji
Opis bibliograficzny
Phase transitions and mechanical behavior of Ti-3wt.%Nb alloy after high pressure torsion and low-temperature annealing / A. Korneva, B. Straumal, A. Kilmametov, S. KOPACZ, M. Szczerba, Ł. GONDEK, G. CIOS, L. Lityńska-Dobrzyńska, R. Chulist // Materials Science and Engineering . A, Structural Materials: Properties, Microstructure and Processing ; ISSN 0921-5093. — 2022 — vol. 857 art. no. 144096, s. 1–7. — Bibliogr. s. 7, Abstr. — Publikacja dostępna online od: 2022-09-28. — R. Chulist – afiliacja: Instytut Metalurgii i Inżynierii Materiałowej PAN, Kraków
Autorzy (9)
- Korneva Anna V.
- Straumal B. B.
- Kilmametov Askar R.
- AGHKopacz Sebastian
- Szczerba Maciej Jakub
- AGHGondek Łukasz
- AGHCios Grzegorz
- Lityńska-Dobrzyńska Lidia
- Chulist Robert
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 143258 |
|---|---|
| Data dodania do BaDAP | 2022-10-25 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.msea.2022.144096 |
| Rok publikacji | 2022 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Materials Science and Engineering, A, Structural Materials: Properties, Microstructure and Processing |
Abstract
The influence of microstructure and phase transitions on tensile strength, plasticity and microhardness of a Ti-3wt.%Nb alloy subjected to high pressure torsion (HPT) followed by annealing is studied in this work. The initial state of the alloy was the α-solid solution with a small amount of the β-precipitates. The characterization of microstructure and phase transitions has been performed using scanning and transmission electron microscopy as well as X-ray diffraction. During HPT, the grain refinement took place and the α-phase partially transformed into ω-phase. The tensile test of the HPT-deformed sample showed an almost two-fold increase of ultimate strength in comparison with the initial state, as well as lower plasticity. During the short-term annealing of the deformed state up to 250 °C, the grain size slightly increased, the density of the crystal structure defects decreased and ω-phase transformed back to the α-phase. Such microstructural changes led to an important growth of plasticity and a slight decrease in ultimate strength of the HPT-deformed alloy.
