Grain refinement effect on fatigue life of two grades of commercially \npure titanium

0574572 - ÚFM 2024 RIV GB eng J - Článek v odborném periodiku
Fintová, Stanislava - Kunz, Ludvík - Chlup, Zdeněk - Kuběna, Ivo - Mertová, K. - Hradil, D. - Duchek, M.
Grain refinement effect on fatigue life of two grades of commercially
pure titanium.
International Journal of Fatigue. Roč. 176, NOV (2023), č. článku 107883. ISSN 0142-1123. E-ISSN 1879-3452
Institucionální podpora: RVO:68081723
Klíčová slova: Titanium grade 2 * Titanium grade 4 * Fatigue * Ultrafine-grained structure * Fatigue crack initiation * ECAP * Conform ECAP
Obor OECD: Materials engineering
Impakt faktor: 6, rok: 2022
Způsob publikování: Open access
https://www.sciencedirect.com/science/article/pii/S0142112323003845?via%3Dihub

The fatigue life and fatigue limit of commercially pure Ti grade 2 and 4 in coarse-grained and ultrafine-grained
states were experimentally determined. Ultrafine structures were prepared by Conform severe plastic deforma tion method and by conventional Equal channel angular pressing, respectively. The differences in the
improvement of fatigue life and the influence of both procedures on the fatigue limit based on 107 cycles to
fracture are discussed in terms of grain refinement, microstructure, differences in fatigue damage mechanism and
influence of surface roughness on the initiation of fatigue cracks. Improvement in fatigue life was observed for
both materials, however, the improvement of the fatigue limit was found only for Ti grade 2.
Trvalý link: https://hdl.handle.net/11104/0344751