Procedures related to the preparation of samples for Mossbauer spectro
scopy studies of phase transformations in metals research are discusse
d in examples of works undertaken by the authors; (i) determination of
austempering kinetics of compacted graphite cast irons, (ii) GEMS stu
dies aimed at finding suitable polishing treatments that reproduce the
bulk phase proportions, (iii) GEMS investigations on samples polished
by spark planing, and (iv) the research of surface processes produced
by laser melting treatments.