Shear-Coupled Grain Growth and Texture Development in a Nanocrystalline Ni-Fe Alloy during Cold Rolling
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esearch Scientist, is with the Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai, 201204, China, and also with Department of Materials Science and Engineering, The University of Tennessee, Knoxville, TN, 37996. TAMA´S UNGA´R, Professor Emeritus, is with the Department of Materials Physics, Eo¨tvo¨s University Budapest, Budapest, POB 32, 1518, Hungary, and also with the Laboratory of Excellence on Design of Alloy Metals for lowmAss Structures (DAMAS), Universite´ de Lorraine, Metz, France. Contact e-mail: [email protected] LASZLO S. TOTH, Head of Department, is with the Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures (DAMAS), Universite´ de Lorraine, and also with Laboratoire d’Etude des Microstructures et de Me´canique des Mate´riaux, Universite´ de Lorraine-Metz, Ile du Saulcy, 57045, Metz, Cedex 01, France. WERNER SKROTZKI, University Professor, is with the Institut fu¨r Strukturphysik, Technische Universita¨t Dresden, 01062, Dresden, Germany. YAN DONG WANG, University Professor, is with the State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, China. YANG REN, Head of Beamline, is with the Xray Science Division, Argonne National Laboratory, Argonne, IL, 60439. HAHN CHOO and PETER K. LIAW, University Professors, are with the Department of Materials Science and Engineering, The University of Tennessee. ZSOLT FOGARASSY, Research Fellow, is with the Research Institute for Technical Physics and Materials Science, Hungarian Academy of Science, Budapest, Hungary. X.T. ZHOU, Beamline Scientist, is with the Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Science. The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory (‘‘Argonne’’). Argonne, a U.S. Department of Energy Office of Science laboratory, is operated under Contract no. DE-AC02-06CH11357. The U.S. Government retains for itself, and others acting on its behalf, a paid-up nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-publicaccess-plan). Manuscript submitted April 26, 2016. METALLURGICAL AND MATERIALS TRANSACTIONS A
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INTRODUCTION
THE observation of shear-coupled grain growth in both coarse and submicron grain size metals and alloys is not new. Li et al.[1] and Bainbridge et al.[2] found in coarse-grained Zn that grain boundaries move preferentially and normal to the grain boundary (GB) when the applied shear stress is acting in the Burgers vector direction of edge dislocations comprising the boundary. Following up the inverse Hall–Petch effect,[3] Schiøtz et al.[4] c
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