Analysis of Stored Energy in Cold-Rolled Copper Using Bulk and Microstructure-Based Techniques

Shan-Quan Deng, Andy Godfrey, Wei Liu

Fig. 1 Example TEM images showing typical dislocation cell-block morphologies in samples of Cu cold-rolled to strains of 0.42 a, 1.36 b and 3.43 c; d schematic showing the approach used for determination of the dislocation boundary data from the TEM observations. In this case, three individual GNB spacings and five individual IDB spacings are measured. For the cell block shown here the aspect ratio, N, is given by