Number of the records: 1
Dynamic grain coarsening in creep of pure Cu at 0.42 Tm after predeformation by ECAP
- 1.0496155 - ÚFM 2019 RIV CH eng J - Journal Article
Blum, W. - Dvořák, Jiří - Král, Petr - Sklenička, Václav
Dynamic grain coarsening in creep of pure Cu at 0.42 Tm after predeformation by ECAP.
Materials Science and Engineering A Structural Materials Properties Microstructure and Processing. Roč. 731, JUL (2018), s. 520-529. ISSN 0921-5093. E-ISSN 1873-4936
R&D Projects: GA MŠMT(CZ) LQ1601
Institutional support: RVO:68081723
Keywords : Cu * Recovery * Grain coarsening * Creep * Grain boundaries
OECD category: Materials engineering
Impact factor: 4.081, year: 2018
Microcrystalline Cu99.99 produced by equal channel angular pressing and static recrystallization was deformed in tensile and compressive creep at 573 K. Discontinuous coarsening of grains led to dramatic changes of creep rate. These reflect general hardening as the grains coarsen, superimposed by transient net softening when grain boundary migration activity peaks. The strength at the first minimum of creep rate is modeled by treating the material as a composite of subgrain-free and subgrain-containing grains with different recovery kinetics.
Permanent Link: http://hdl.handle.net/11104/0288965
Number of the records: 1