Shear band formation and ductility in nanotwinned Cu
作者： A.M. Hodge , T.A. Furnish , A.A. Navid , T.W. Barbee
DOI: 10.1016/J.SCRIPTAMAT.2011.09.002
关键词:
摘要: The ductility and plastic flow behavior of highly aligned nanotwinned copper produced by interrupted magnetron sputtering is investigated. Tensile tests were performed at various strain rates both room liquid nitrogen (77 K) temperatures. Higher strength are reported for all samples tested 77 K. observed inhomogeneous deformation shear band propagation discussed as functions the testing temperature, decreasing heat capacity 77 K low initial dislocation density, which leads to a yield peak.
usc.edu
elsevier.com
sci-hub.se 参考文章(30)
Robert L. Powell, H. Martin Roder, William M. Rogers, Low‐Temperature Thermal Conductivity of Some Commercial Coppers Journal of Applied Physics. ,vol. 28, pp. 1282- 1288 ,(1957) , 10.1063/1.1722634
K. Lu, L. Lu, S. Suresh, Strengthening Materials by Engineering Coherent Internal Boundaries at the Nanoscale Science. ,vol. 324, pp. 349- 352 ,(2009) , 10.1126/SCIENCE.1159610
Yan-Dong Wang, Wenjun Liu, Lei Lu, Yang Ren, Zhi-Hua Nie, Jonathan Almer, Sheng Cheng, Yong-Feng Shen, Liang Zuo, Peter K. Liaw, Ke Lu, Low temperature deformation detwinning - a reverse mode of twinning. Advanced Engineering Materials. ,vol. 12, pp. 906- 911 ,(2010) , 10.1002/ADEM.201000123
C.Y. Yu, P.W. Kao, C.P. Chang, Transition of tensile deformation behaviors in ultrafine-grained aluminum Acta Materialia. ,vol. 53, pp. 4019- 4028 ,(2005) , 10.1016/J.ACTAMAT.2005.05.005
W. G. Johnston, J. J. Gilman, Dislocation Velocities, Dislocation Densities, and Plastic Flow in Lithium Fluoride Crystals Journal of Applied Physics. ,vol. 30, pp. 129- 144 ,(1959) , 10.1063/1.1735121
C.J. Shute, B.D. Myers, S. Xie, S.-Y. Li, T.W. Barbee, A.M. Hodge, J.R. Weertman, Detwinning, damage and crack initiation during cyclic loading of Cu samples containing aligned nanotwins Acta Materialia. ,vol. 59, pp. 4569- 4577 ,(2011) , 10.1016/J.ACTAMAT.2011.04.002
R.W. Armstrong, C.S. Coffey, W.L. Elban, Adiabatic heating at a dislocation pile-up avalanche Acta Metallurgica. ,vol. 30, pp. 2111- 2116 ,(1982) , 10.1016/0001-6160(82)90131-6
L. Lu, X. Chen, X. Huang, K. Lu, Revealing the Maximum Strength in Nanotwinned Copper Science. ,vol. 323, pp. 607- 610 ,(2009) , 10.1126/SCIENCE.1167641
Hans Conrad, Grain-size dependence of the flow stress of Cu from millimeters to nanometers Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 35, pp. 2681- 2695 ,(2004) , 10.1007/S11661-004-0214-5
X.H. Chen, L. Lu, K. Lu, Grain size dependence of tensile properties in ultrafine-grained Cu with nanoscale twins Scripta Materialia. ,vol. 64, pp. 311- 314 ,(2011) , 10.1016/J.SCRIPTAMAT.2010.10.015