Boron effects on the solidification of steel during continuous casting
Boron effects on the solidification of steel during continuous casting
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DOI：
10.1051/metal:2009005
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发表时间：
2008-12
影响因子：
--
通讯作者：
K. Blazek;O. Lanzi;H. Yin
中科院分区：
文献类型：
--
作者：
K. Blazek;O. Lanzi;H. Yin
向钢中添加硼引入了钢最初完全凝固然后在非常低的碳水平下在枝晶间区域中重熔的可能性。对于所有碳含量，低熔点Fe-B合金在1100°C左右以液体形式存在。由于硼的偏析，这种液体存在于硼含量低至0.0004%的钢中。这种液体的持续存在导致热脆性、漏钢和其他铸造缺陷。低硼浓度的伪二元相图已开发使用ThermoCalc软件，并使用实验技术进行了确认。
The addition of boron to steel introduces the possibility of steel initially completely solidifying and then remelting in the interdendritic regions at very low carbon levels. For all carbon levels, a low melting Fe-B alloy exists as a liquid down to around 1100°C. This liquid is found in steel with as low as 0.0004% boron due to the boron segregation. The persistence of this liquid leads to hot shortness, breakouts, and other casting defects. Pseudo-binary phase diagrams for low boron concentrations have been developed using ThermoCalc software and were confirmed using experimental techniques.