Grain boundary segregation of phosphorus and molybdenum in A533B steel

Rengen Ding, Tiesheng Rong, John Knott

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Phosphorus and molybdenum segregation to grain boundaries in a commercial grade A533B steel subjected to a variety of heat treatments has been examined using a field emission gun scanning transmission electron microscope (FEGSTEM) with energy dispersive X-ray microanalysis. The results indicate that P and Mo concentrations at prior austenite grain boundaries increase with aging time. This follows the prediction of McLean's equilibrium segregation model, when modified to take account of the interaction energy between phosphorus and molybdenum.
Original languageEnglish
Pages (from-to)1255 - 1260
Number of pages6
JournalMaterials Science and Technology
Issue number11
Publication statusPublished - 1 Nov 2005


  • Grain boundaries
  • Segregation
  • Molybdenum
  • Phosphorus
  • Steel


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