Szczegóły publikacji
Opis bibliograficzny
Crystallographic insights into the formation of shear bands in technically pure titanium deformed at high strain rate / S. PUCHLERSKA, H. Paul, S. M. Fatemi, Ł. MADEJ, R. CHULIST, M. Prażmowski, P. Petrzak // Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials ; ISSN 1073-5623. — 2025 — vol. 56 iss. 8, s. 3169–3192. — Bibliogr. s. 3191–3192, Abstr. — Publikacja dostępna online od: 2025-06-05
Autorzy (7)
- AGHPuchlerska Sandra
- Paul Henryk
- Fatemi Seyed Mahmood
- AGHMadej Łukasz
- AGHChulist Robert
- Prażmowski Mariusz
- Petrzak Paweł
Dane bibliometryczne
| ID BaDAP | 161161 |
|---|---|
| Data dodania do BaDAP | 2025-07-21 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s11661-025-07828-y |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Metallurgical and Materials Transactions, A, Physical Metallurgy and Materials Science |
Abstract
This experimental study thoroughly investigated the residual grain morphology and crystallographic orientation within the zone of the localized deformation of technically pure α-titanium after dynamic loading at room temperature. The initial material was an extruded bar with a well-defined basal texture. The specimens were deformed at a strain rate of 5000 s−1 with the use of a drop hammer and then characterized using scanning electron microscopy (SEM) equipped with an orientation imaging system. To quantify the plastic anisotropy, hat-shaped specimens were cut from the extruded bar at 0, 45 and 90 deg relative to the extrusion direction. A shear band initially formed under severe shear localization near the specimen corners, where the crystal lattice was found to rotate because of the activation of slip systems on the basal and prismatic planes. This rotation formed specific texture components in the sheared region, which were different from those observed in the less-deformed matrix. Regardless of the initial crystallographic texture of the specimen, the normals of the {0001} planes in the dominant fraction of grains of the sheared region tended to align parallel to the shear plane and perpendicular to the loading direction. Simultaneously, the normal to one of the {1−100} planes was positioned perpendicular to the shear plane, and one of the 〈11−20〉 directions, common to both planes, was consistently aligned with the shear direction. Finally, this study proposes a crystallographic approach to explain of nucleation and growth of shear bands in technically pure α-titanium subjected to dynamic loading, offering new insights into the mechanical behavior of metals under dynamic conditions.
