Abstract
The intergranular segregation of antimony associated with temper embrittlement in a low carbon manganese steel was quantitatively studied through the backscattering of MeV12C12+ and1214N12+ ions. The principles of the technique and its application to interface segregation problems are briefly explained and its main advantages discussed. The influence of various heat treatments was investigated and shown to strongly influence the segregation taking place in the α field. Segregation could not be detected in the γ field. The kinetics of the phenomenon in the critical range (400° to 600°C) is described. The role of the micro-structure was studied and it is shown that segregation does not occur only at the previous austenitic grain boundaries but at all the disordered high angle boundaries of the structure. The grain boundary Sb content after a reversion and a resegregation treatment was also studied. The results are interpreted in terms of a reversible type of segregation taking place entirely in the α phase.
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Guttmann, M., Krahe, P.R., Abel, F. et al. Temper embrittlement and intergranular segregation of antimony: A quantitative analysis performed with the backscattering of energetic ions. Metall Trans 5, 167–177 (1974). https://doi.org/10.1007/BF02642941
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DOI: https://doi.org/10.1007/BF02642941