Segregation of boron at prior austenite grain boundaries in a quenched martensitic steel studied by atom probe tomography

@inproceedings{Li2014SegregationOB,
  title={Segregation of boron at prior austenite grain boundaries in a quenched martensitic steel studied by atom probe tomography},
  author={Yujiao Li and Dirk Ponge and Philip I. Choi and Dierk Raabe},
  year={2014}
}
The distribution of B and other alloying elements (C, Cr, Mo) at prior austenite grain boundaries (PAGBs) and in the matrix was quantified by atom probe tomography in a quenched martensitic steel. B and Mo were observed to be segregated only at PAGBs and to be absent at martensite– martensite boundaries. C is segregated both at PAGBs and at martensite–martensite boundaries, whereas Cr is homogeneously distributed in the probed volume. Our results indicate that B undergoes a non-equilibrium… CONTINUE READING

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