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Effect of Titanium Sulfide Particles on Grain Size in Low Carbon Steel

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Proceedings of the 3rd Pan American Materials Congress

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

The effect of titanium sulfide particles on the grain size characteristic of low carbon steel was analyzed. Optical microscope (OM), scanning electron microscope (SEM) were used to characterize the grain size and particles. The result showed that grain size increased from 19.95 to 60.56 μm after heat treatment . The particles were mainly titanium sulfide in the size range of 0.2–0.8 μm and the volume fraction decreased significantly from 0.0084 to 0.0023%. The thermodynamic calculation resulted that these particles were dissolved during heat treatment. The pinning force of grain boundary and the driving force of grain growth were calculated. Based on experimental results and theoretical calculations, titanium sulfide particles with diameter from 0.2 to 0.8 μm and volume fraction of 0.0084% would be sufficient to inhibit the ferrite grain growth.

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Acknowledgements

This work was supported by 973 Project (No.2011CB012902) and National Natural Science Foundation of China (No. U1460103). The authors also wish to express their grateful thanks to the Instrumental Analysis & Research Center of Shanghai University for the instrument supports.

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Correspondence to Huigai Li .

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Wu, Y., Peng, B., Li, F., Zheng, S., Li, H. (2017). Effect of Titanium Sulfide Particles on Grain Size in Low Carbon Steel. In: Meyers, M., et al. Proceedings of the 3rd Pan American Materials Congress. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-52132-9_70

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