Fine equiaxed dendritic structure of a medium carbon steel cast using pulsed magneto-oscillation melt treatment

doi:10.1007/s40436-017-0206-5

Abstract

Abstract: The application of a pulsed magneto-oscillation (PMO) technique during the solidification of a commercial high melting point medium carbon steel ingot (φ140 mm 9 450 mm) produced fully equiaxed grains in the cast ingot, indicating that the PMO process significantly promotes heterogeneous nucleation near the solid-liquid interface. The vigorous convection induced by PMO forced the partly solidified grains to move from the solid-liquid interface and became randomly distributed throughout the melt, which resulted in the formation of uniformly sized equiaxed dendrites throughout the whole ingot. Building on the developed nucleation mechanism and a flow field simulation of pure aluminum, a PMO-induced grain refinement model for steel is proposed.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-017-0206-5

Key words: Pulsed magneto-oscillation (PMO), Grain refinement, Carbon steel, Simulation, Microstructure

Jie Sun, Cheng Sheng, Ding-Pu Wang, Jing Zhao, Yun-Hu Zhang, Hong-Gang Zhong, Gui Wang, Qi-jie Zhai. Fine equiaxed dendritic structure of a medium carbon steel cast using pulsed magneto-oscillation melt treatment[J]. Advances in Manufacturing, 2018, 6(2): 189-194.

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URL: https://www.aim.shu.edu.cn/EN/10.1007/s40436-017-0206-5

https://www.aim.shu.edu.cn/EN/Y2018/V6/I2/189

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Fine equiaxed dendritic structure of a medium carbon steel cast using pulsed magneto-oscillation melt treatment

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