A comparison between equal channel angular pressing and asymmetric rolling of silver in the severe plastic deformation regime (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• A comparison between equal channel angular pressing and asymmetric rolling of silver in the severe plastic deformation regime (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.msea.2012.09.018 (literal)

Alternative label

• Angella G.; Esfandiar Jahromi B.; Vedani M. (2013)
  A comparison between equal channel angular pressing and asymmetric rolling of silver in the severe plastic deformation regime
  in Materials science & engineering. A, Structural materials: properties, microstructure and processing
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Angella G.; Esfandiar Jahromi B.; Vedani M. (literal)

Pagina inizio

• 742 (literal)

Pagina fine

• 750 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.sciencedirect.com/science/article/pii/S0921509312013305 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 559 (literal)

Rivista

• Materials science & engineering. A, Structural materials: properties, microstructure and processing (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 7 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1 : CNR-Institute for Energetics and Interphases, Via Roberto Cozzi, 53 20125 Milano, Italy / 2,3 : Politecnico di Milano, Department of Mechanical Engineering, Via Giuseppe La Masa, 1 20156 Milano, Italy (literal)

Titolo

• A comparison between equal channel angular pressing and asymmetric rolling of silver in the severe plastic deformation regime (literal)

Abstract

• The structure evolution and mechanical properties of silver generated by equal channel angular pressing and by rolling and asymmetric rolling in the severe plastic deformation regime is investigated. Experimental investigations are combined with finite element analyses to improve the understanding on strain distribution developed during asymmetric rolling and to evaluate the equivalent strain accumulated after a large number of passes. The silver samples could be successfully deformed by both processing techniques up to strain values exceeding 8. The ECAP processed materials featured a submicrometer-size equiaxed grain structure with sharp grain boundaries, while symmetric and asymmetric rolling led to subgrain structures with a higher dislocation density at grain interiors and less defined grain boundaries. Accordingly, the tensile properties achieved after the different processing routes differed. In ECAP samples the strength improved at first passes and then showed a plateau for the whole range of imposed strain. In rolled silver, the achieved strength almost continuously improved even at larger strains. The finite element model showed that surface strain effects related to local friction between working rolls and sample surface regions promote an additional deformation, especially in asymmetric rolling, leading to a significant contribution at large plastic strains and generate discrepancies with equivalent strains assessed by continuum theories. (literal)

Prodotto di

• Materiali strutturali innovativi per l'energetica (ET.P06.005.001) (Modulo)
• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)

Autore CNR

• GIULIANO ANGELLA (Persona)

Insieme di parole chiave

• Parole chiave di "A comparison between equal channel angular pressing and asymmetric rolling of silver in the severe plastic deformation regime" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• GIULIANO ANGELLA (Persona)

Prodotto

• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)
• Materiali strutturali innovativi per l'energetica (ET.P06.005.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Materials science & engineering. A, Structural materials: properties, microstructure and processing (Rivista)

Insieme di parole chiave di

• Parole chiave di "A comparison between equal channel angular pressing and asymmetric rolling of silver in the severe plastic deformation regime" (Insieme di parole chiave)