The Effect of Inclusions on the Formation of Intragranular Ferrite

Abstract:

In order to make a more intuitive and easier analysis the influence of different inclusions on the formation of ferrite, a layer of high purity oxide powder was added in the two parts of the Q235 steel artificially. The effect of the inclusions Ti₂O₃MgOZrO₂ and Al₂O₃ on the nucleation of intragranular ferrite were studied by means of the physical simulation method. The microstructure of the micro-zone adjacent to the inclusions was observed and the elements of the micro-zone adjacent were analyzed. The results showed that the inclusions Ti₂O₃ and Al₂O₃ can form the ferrite layers at the oxides-steels interface; the inclusions Ti₂O₃ has an ability to induce the nucleation of intragranular ferrite; the inclusions Ti₂O₃ can change the chemical composition of the metal micro-zone adjacent to the inclusions, where the Mn depletion area was observed.

• Periodical: Advanced Materials Research (Volumes 765-767)
• Pages: 3134-3138
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.765-767.3134
• Online since: September 2013
• Authors: Fan Zheng Bu, Xue Min Wang
• Keywords: Hot-Press-Fusion, Inclusion, Intragranular Ferrite

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