Abstract
Inclusion evolution behaviors of EH550 steel during hot-rolling heating have been investigated in situ by employing a confocal scanning laser microscope. It is found that, as heating continues, the area fraction of inclusions sharply increases, reaches the peak value at 1223 K, and diminishes to the minimum value upon reaching 1373 K. The inclusion, clarified by means of ex situ examination, is primarily composed of boron nitride, and the formation mechanisms have been further elaborated.
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Acknowledgments
The authors sincerely acknowledge the financial support from the National Natural Science Foundation of China (Grant Nos. U20A20277 and 52150610494), National Key Research and Development Plan of China (Grant No. 2022YFE0123300), and Spring Sunshine Plan (Chunhui) Research Project of Ministry of Education of China (Grant No. HZKY20220437).
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Ma, J., Zhong, M., Li, Z. et al. Revealing Inclusion Evolution Behaviors During Hot-Rolling Heating of EH550 Offshore Engineering Steel. Metall Mater Trans B 54, 2865–2869 (2023). https://doi.org/10.1007/s11663-023-02887-1
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DOI: https://doi.org/10.1007/s11663-023-02887-1