metallilise materjali olek faasidiagrammi likvidus- ja solidustemperatuuride vahemikus ja millele on iseloomulikud füüsikalised omadused, mis on tardunud ja vedela oleku vahepealsed (vt vedelfaas, tar, state of metallic material between solidus and liquidus, characterized by viscosity and rigidity intermediate between that of a solid and a liquid (see: liquid phase, solid phase)