caa a22 4500 463231120 CHVBK 20180405153242.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s10853-006-0750-z doi (NATIONALLICENCE)springer-10.1007/s10853-006-0750-z The role of carbon segregation on nanocrystallisation of pearlitic steels processed by severe plastic deformation [Elektronische Daten] [X. Sauvage, Y. Ivanisenko] The nanostructure and the carbon distribution in a pearlitic steel processed by torsion under high pressure was investigated by three-dimensional atom probe. In the early stage of deformation (shear strain of 62), off-stoichiometry cementite was analysed close to interphase boundaries and a strong segregation of carbon atoms along dislocation cell boundaries was observed in the ferrite. At a shear strain of 300, only few nanoscaled off-stoichiometry cementite particles remain and a nanoscaled equiaxed grain structure with a grain size of about 20nm was revealed. 3D-AP data clearly point out a strong segregation of carbon atoms along grain boundaries. The influence of this carbon atom segregation on the nanostructure formation is discussed and a scenario accounting for the nanocrystallisation during severe plastic deformation is proposed. Springer Science+Business Media, LLC, 2006 Sauvage X. Groupe de Physique des Matériaux-UMR CNRS 6634, Institute of Material Research, Université de Rouen, 76801, Saint-Etienne-du-Rouvray, France aut Ivanisenko Y. Institut für Nanotechnologie, Forschungszentrum Karlsruhe, 76021, Karlsruhe, Germany aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/5(2007-03-01), 1615-1621 0022-2461 42:5<1615 2007 42 10853 https://doi.org/10.1007/s10853-006-0750-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0750-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sauvage X. Groupe de Physique des Matériaux-UMR CNRS 6634, Institute of Material Research, Université de Rouen, 76801, Saint-Etienne-du-Rouvray, France aut NATIONALLICENCE 700 1- Ivanisenko Y. Institut für Nanotechnologie, Forschungszentrum Karlsruhe, 76021, Karlsruhe, Germany aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/5(2007-03-01), 1615-1621 0022-2461 42:5<1615 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer