Different Phenomena Encountered during Dilatometry of Low-density Steels

Abstract In recent decades, highly alloyed low-density steels are being developed to reduce the weight of different automotive parts. Dilatometry can be a very useful experimental technique understand phase transformations during heating or cooling new steel alloys. When performing dilatometry measurements some assumptions made such as homogeneity sample material tested experiment. this study, tests were performed for two steels, and variations composition between surface inner part analyzed. The migration manganese by diffusion from interior samples finally its evaporation on under vacuum observed. This compositional gradient generated in may influence veracity interpretation results obtained when working with high detachment grains created change near is also investigated.