Thephase-fieldmethodhasemergedasthemethodofchoiceforthedescriptionofmicrostructureevolutionandphasetransitionsinmetallicmaterials.Followinggeneralthermodynamiclawsasetofevolutionequationsforthestructuralvariablesofthesystem,thesocalledphase-fields,arederived.Thepaperreviewsshortlythetheoreticalbackgroundofthemulti-phase-field.Differentexamplesdemonstratingtheapplicabilityofthemethodtotechnicalsteelswillbepresentedrangingfromdeformationofthedendriticstrandshellduringperitectictransformation,graingrowthinAustenitetostressdrivengrowthofPearlite.
