naa a22 4500 510771033 CHVBK 20180411083213.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11837-012-0542-7 doi (NATIONALLICENCE)springer-10.1007/s11837-012-0542-7 Atomic Mixing in Metals Under Shear Deformation [Elektronische Daten] [Nhon Vo, Jian Zhou, Yinon Ashkenazy, Daniel Schwen, Robert Averback, Pascal Bellon] The fundamental processes of shear-induced chemical mixing in heterogeneous Cu-based alloy systems have been studied by molecular dynamics computer simulations. These simulations reveal that two very disparate mechanisms operate depending on whether or not the two phases are coherent. For the coherent systems, mixing occurs as dislocations transfer across phase boundaries. The mixing in these systems is "superdiffusive,” and for spherical precipitates, the rate of mixing increases quadratically with precipitate radius. In systems that have incoherent phases, the mixing occurs by a local shuffling of atoms at the interface, and for them, the mixing is diffusive, with the mixing rates of spherical precipitates scaling linearly with particle radius. The morphologies of the interfaces for the two situations are also different. Coherent precipitates form rough interfaces that are relatively sharp, whereas the interfaces of incoherent precipitates are smooth but diffuse. These simulations also show that for incoherent precipitates, shear-induced mixing can be very different at different crystallographic interfacial planes as well as for different strain directions. TMS, 2013 Vo Nhon Department of Materials Science and Engineering, Northwestern University, 60208, Evanston, IL, USA aut Zhou Jian Department of Materials Science and Engineering, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, 61801, Urbana, IL, USA aut Ashkenazy Yinon Racah Institute of Physics, Hebrew University of Jerusalem, 91904, Jerusalem, Israel aut Schwen Daniel Los Alamos National Laboratory, 87545, Los Alamos, NM, USA aut Averback Robert Department of Materials Science and Engineering, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, 61801, Urbana, IL, USA aut Bellon Pascal Department of Materials Science and Engineering, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, 61801, Urbana, IL, USA aut JOM Springer US; http://www.springer-ny.com 65/3(2013-03-01), 382-389 1047-4838 65:3<382 2013 65 11837 https://doi.org/10.1007/s11837-012-0542-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11837-012-0542-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vo Nhon Department of Materials Science and Engineering, Northwestern University, 60208, Evanston, IL, USA aut NATIONALLICENCE 700 1- Zhou Jian Department of Materials Science and Engineering, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, 61801, Urbana, IL, USA aut NATIONALLICENCE 700 1- Ashkenazy Yinon Racah Institute of Physics, Hebrew University of Jerusalem, 91904, Jerusalem, Israel aut NATIONALLICENCE 700 1- Schwen Daniel Los Alamos National Laboratory, 87545, Los Alamos, NM, USA aut NATIONALLICENCE 700 1- Averback Robert Department of Materials Science and Engineering, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, 61801, Urbana, IL, USA aut NATIONALLICENCE 700 1- Bellon Pascal Department of Materials Science and Engineering, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, 61801, Urbana, IL, USA aut NATIONALLICENCE 773 0- JOM Springer US; http://www.springer-ny.com 65/3(2013-03-01), 382-389 1047-4838 65:3<382 2013 65 11837 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer