caa a22 4500 463231015 CHVBK 20180405153242.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s10853-006-0700-9 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0700-9 Wei Q. Department of Mechanical Engineering and Engineering Science, University of North Carolina at Charlotte, 9201 University City Blvd., 28223-0001, Charlotte, NC, USA aut Strain rate effects in the ultrafine grain and nanocrystalline regimes—influence on some constitutive responses [Elektronische Daten] [Q. Wei] Mounting evidence is pointing to some emerging novel behaviors of metals with ultrafine-grain (UFG) and/or nanocrystalline (NC) microstructures. One such novel behavior is related to the thermodynamic and kinetic aspects of plastic response in the UFG/NC regime. Two inter-related parameters, viz., the strain rate sensitivity (SRS) and the activation volumes of plastic deformation, are used as fingerprints for the thermodynamics and kinetics of plastic deformation. Changes of these parameters with grain size may indicate transition of plastic deformation mechanisms. Therefore, investigations of these phenomena may bring out new strategies for ingenious design and synthesis of UFG/NC materials with desirable properties. In this article, we present a critical review on the experimental results and theories associated with the SRS of UFG/NC metals with different lattice structures, and the influences on some constitutive responses. Springer Science+Business Media, LLC, 2006 Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/5(2007-03-01), 1709-1727 0022-2461 42:5<1709 2007 42 10853 https://doi.org/10.1007/s10853-006-0700-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0700-9 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Wei Q. Department of Mechanical Engineering and Engineering Science, University of North Carolina at Charlotte, 9201 University City Blvd., 28223-0001, Charlotte, NC, USA aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/5(2007-03-01), 1709-1727 0022-2461 42:5<1709 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer