Transmission electron microscopy study of the role of interface structure at 100/111 boundaries in a shocked copper multicrystal
AG Perez-Bergquist, EK Cerreta, CP Trujillo, GT Gray, C Brandl, TC Germann
SCRIPTA MATERIALIA | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2012
While shock loading has long been used to investigate dynamic damage evolution in materials, the role of interface structure in the response of shock-loaded polycrystalline materials has largely been ignored. In this work, a specially fabricated multicrystalline Cu specimen is used to interrogate the role of interface structure on microstructural and substructural evolution in shock-loaded materials. Results show that, under shock, grain boundaries respond differently as a function of structure. © 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Awarded by National Nuclear Security Administration of the US Department
Los Alamos National Laboratory is operated by LANS, LLC, for the National Nuclear Security Administration of the US Department of under Contract DE-AC52-06NA25396. Work by A.P.B., E.K.C., C.B. and T.C.G. has been supported by the Office of Basic Energy Sciences Energy Frontier Research Center for Materials at Irradiation and Mechanical Extremes (CMIME). Work by C.P.T. and G.T.G. has been supported by the Joint DoD/DoE Munitions Technology Development Program. The authors wish to thank D. Byler for providing the samples.