Fig. 7. TEM micrographs of 316L+1.5Y alloy after 3h annealing at 1100 °C.
(a) Bright field (BF) image, (b) low and (e)high magnification dark field images ,(c) SAD pattern after 3h annealing at 1100 °C, (d) SAD pattern after milling.
Results of statistical analysis on several such TEM images yields an average grain size of _116nm.