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Effects of Ti-bearing inclusions on intragranular ferrite nucleation

  • Yue Qiu

    Yue Qiu, born in 1982, graduated from the Nanjing University of Aeronautics and Astronautics in 2005 and received a MSc degree in Material Science. Currently, she is a doctoral candidate at the School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan, Anhui, P. R. China.

    , Fuhao Chen

    Fuhao Chen, born in 1994, graduated from Chongqing University of Science and Technology in 2018 and received a Bachelor’s degree in Metallurgical Engineering. Currently, he is a Postgraduate Student at the School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan, Anhui, P R China.

    , Bangfu Huang

    Bangfu Huang, born in 1983, graduated from the University of Science and Technology, Beijing in 2011 and received a Doctor’s degree in Metallurgical Engineering. Currently, he is an Associate Professor in the Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, P R China.

    , Zhaoyang Wu

    Zhaoyang Wu, born in 1990, graduated from Wuhan University of Science and Technology in 2016 and received a Doctor’s degree in Metallurgical Engineering. Currently, he is a Lecturer at the School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan, Anhui, P R China.

    and Hui Kong

    Hui Kong, born in 1980, graduated from the University of Science and Technology of China in 2007 and received a Doctor’s degree in Material Physics and Chemistry. Currently, he is a Professor at the School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan, Anhui, P R China.

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Published/Copyright: February 10, 2021
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Abstract

The effect of Ti-bearing inclusion characteristics, such as size and marginal composition, on intragranular ferrite (IGF) nucleation has been explored in single sample through SEM and EDS. It can be seen that Ti-bearing inclusions can induce IGF nucleation, and this nucleation ability was scaled by the number of its induced lathes. Statistical analysis suggested that this ability may be correlated with inclusion size, and independent of Ti2O3 content in inclusion. The former can be attributed to the classical theory of heterogeneous nucleation. The latter can be explained by the relationship between the diffusion quantity of Mn and its solubility in Ti2O3 based on the theory of an Mn-depletion zone. Moreover, a probabilistic feature was observed in the nucleation phenomenon which may be due to a small difference in formation energy between the ferrite side plate and the IGF. These results may be helpful to clarify the nature of oxide metallurgy of a Ti-bearing inclusion.


Hui Kong School of Metallurgical Engineering Anhui University of Technology Ma’anshan, Anhui, 243002, P. R. China

About the authors

Yue Qiu

Yue Qiu, born in 1982, graduated from the Nanjing University of Aeronautics and Astronautics in 2005 and received a MSc degree in Material Science. Currently, she is a doctoral candidate at the School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan, Anhui, P. R. China.

Fuhao Chen

Fuhao Chen, born in 1994, graduated from Chongqing University of Science and Technology in 2018 and received a Bachelor’s degree in Metallurgical Engineering. Currently, he is a Postgraduate Student at the School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan, Anhui, P R China.

Bangfu Huang

Bangfu Huang, born in 1983, graduated from the University of Science and Technology, Beijing in 2011 and received a Doctor’s degree in Metallurgical Engineering. Currently, he is an Associate Professor in the Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, P R China.

Zhaoyang Wu

Zhaoyang Wu, born in 1990, graduated from Wuhan University of Science and Technology in 2016 and received a Doctor’s degree in Metallurgical Engineering. Currently, he is a Lecturer at the School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan, Anhui, P R China.

Prof. Dr. Hui Kong

Hui Kong, born in 1980, graduated from the University of Science and Technology of China in 2007 and received a Doctor’s degree in Material Physics and Chemistry. Currently, he is a Professor at the School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan, Anhui, P R China.

Acknowledgement

This work was supported by the Open Fund of the State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology (No. G201901), National Natural Science Foundation of China (No. 51974004), Open Fund of Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (JKF19-08) and Financial Support for Academic and Technical Leaders (No.2016H092).

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Published Online: 2021-02-10

© 2021 Walter de Gruyter GmbH, Berlin/Boston, Germany

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