Segregation in Advanced Steels

Surface segregation kinetics has been studied in two commercial as hot-rolled interstitial free steels. Auger electron spectroscopy (AES) investigations in the temperature range 853 - 923 K reveal substantial C segregation in both steels as well as S and P segregation in competition with C. The results of scanning AES indicate segregation anisotropy, however, no evidence of preferential segregation from grain boundaries has been found.