Appendix 2: Metal crystallography

Abstract

The micrograph in Fig. App 2.1, from the back plate, is a typical example of grain deformation due to the metal being worked below its recrystallization temperature (see also Figs App 2.2, App 2.3). An acetate replica taken edge-on from the breast plate (see photo), however, showed a banded structure. This is due to the original rolling of the metal and indicates that the bulk of the metal has not been heated above the recrystallization temperature. © 2014 CSIRO Publishing.