A comparative study of the result of Dryzek et al, and ours on the ann
ealing behaviour of cold worked austenitic stainless steel using posit
ron annihilation spectroscopy is presented. It is shown that the posit
ron probes the TiC precipitates in titanium-modified stainless steels
and not the M(23)C(6) precipitates, as suggested by Dryzek et al.