Počet záznamů: 1
Quasi-Stationary Strength of ECAP-Processed Cu-Zr at 0.5 T-m
- 1.0517117 - ÚFM 2020 RIV CH eng J - Článek v odborném periodiku
Blum, W. - Dvořák, Jiří - Král, Petr - Eisenlohr, P. - Sklenička, Václav
Quasi-Stationary Strength of ECAP-Processed Cu-Zr at 0.5 T-m.
Metals. Roč. 9, č. 11 (2019), č. článku 1149. ISSN 2075-4701. E-ISSN 2075-4701
Institucionální podpora: RVO:68081723
Klíčová slova: Cu-Zr * ECAP * deformation * quasi-stationary * subgrains * grains * coarsening
Obor OECD: Materials engineering
Impakt faktor: 2.117, rok: 2019
Způsob publikování: Open access
https://www.mdpi.com/2075-4701/9/11/1149/htm
The influence of the grain structure on the tensile deformation strength is studied for precipitation-strengthened Cu-0.2%Zr at 673K. Subgrains and grains are formed by equal channel angular pressing (ECAP) and annealing. The fraction of high-angle boundaries increases with prestrain. Subgrains and grains coarsen during deformation. This leads to softening in the quasi-stationary state. The initial quasi-stationary state of severely predeformed, ultrafine-grained material exhibits relatively high rate-sensitivity at relatively high stresses. This is interpreted as a result of the stress dependences of the quasi-stationary subgrain size and the volume fraction of subgrain-free grains.
Trvalý link: http://hdl.handle.net/11104/0302510
Počet záznamů: 1