Analysis and Improving Measures for Surface Defects on Low Carbon Boron Steel
Analysis and Improving Measures for Surface Defects on Low Carbon Boron Steel
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发表时间：
2014
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通讯作者：
Shen Ku
中科院分区：
文献类型：
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作者：
Shen Ku
The forming reason of pit and crack on the billet surface and corner of low carbon boron steel was investigated through using the metallographic microscope,SEM(EDS),Gleeble-3800thermal simulator,THERMOCALC software and X-ray diffraction(XRD).The results show that the surface pit is related to the properties of mould powder,and the surface crack is related to the hot straightening temperature in the range of low hot ductility and the precipitation of BN.The surface defects of low carbon boron steel can evidently be decreased through optimizing production process,such as decreasing the nitrogen content in liquid steel,adjusting the properties of mould powder and increasing the hot straightening temperature.
