nodulariseerimissulam
an alloy added to molten iron for the primary purpose of causing the formation of spheroidal graphite during solidification (see: nodularization), sulam, mis lisatakse sulamalmile saavutamaks grafiidiosakeste sferoidiseerumist (mügardumist, nodulariseerumist) tardumisprotsessis (vt mügardamine)
