- Tytuł:
- Influence of Anisotropy on the Viscoplastic Properties of a Hot Rolled Ti6Al4V Titanium Alloy
- Autorzy:
-
Moćko, W.
Kostrzewski, C.
Brodecki, A. - Powiązania:
- https://bibliotekanauki.pl/articles/352964.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
Hopkinson bar
digital image correlation
titanium alloy
constitutive relation
anisotropy
high strain rate
Hill's potential - Opis:
- In this work, the influence of strain rate on the anisotropy of the Ti6Al4V titanium alloy has been analyzed. Tensile tests of notched specimens were carried out in three loading orientations (0°, 45°, and 90°) with respect to the rolling direction, using the servo-hydraulic testing machine and Hopkinson bar. Investigation was supported by the digital image correlation analysis of strain distribution on the specimen surface and assessment of the fracture mechanism. The Ti6Al4V titanium alloy reveals a typical strain rate hardening behavior; however, strain rate sensitivity is independent of the loading orientation. Increases of the loading orientation results in material softening, observed as lowered yield stress, whereas plastic strain exponent and modulus remain unaffected. Fracture strain decreases with loading orientation at quasi-static and dynamic loading conditions.
- Źródło:
-
Archives of Metallurgy and Materials; 2018, 63, 1; 403-411
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł