Low-Carbon,Mn-Si Cast Steel Structure Modification by Fluidized Bed Heat Treatment

The effect of fluidized bed heat treatment (FBHT) on low-carbon Mn-Si cast steel strength properties improvement,strictly ductility is shown in this paper.Fluidized bed heat treatment variants are chosen in order to eliminate the structure defaults after a crystallization process.FBHT parameters are set considering an initial state material chemical composition,structure morphology and application criterion after heat treatment.The results are verified according with the standard BS 3100:1991 recommendations.Fluidized bed heat treatment variants are chosen mainly in order to the Widmanst tten ferrite structures elimination,carbides morphology modification and matrix optimum performance properties achievement.The ZG35SiMn (EN:L30GS) FBHT processes results are verified by the metallographic researches,hardness/microhardness measurements and tensile strength examination.