Abstract
We report deformation twinning in Cu within accumulative roll-bonded Cu-Nb nanolamellar composites. Twins appear connected to the Nb{112}//Cu{112} interface with the Kurdjumov-Sachs orientation relationship, which we show to be ordered and faceted. The interface adopts a different faceted structure after twinning. Our analysis suggests that deformation twinning involves facet dissociation and slip-transfer from the Nb layer to the Cu layer due to a geometrically favorable slip transmission pathway.
Original language | English (US) |
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Article number | 011911 |
Journal | Applied Physics Letters |
Volume | 100 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2 2012 |
Bibliographical note
Funding Information:This work is partially sponsored by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Energy Frontier Research Center (EFRC) under Award No. 2008LANL1026, and by the Los Alamos National Laboratory Directed Research and Development (LDRD) project DR20110029. The authors thank Dr. S. N. Luo, Dr. R. F. Zhang, Dr. K. Kang and Dr. S. J. Zheng for stimulating discussions.