Study on the Relationship between Tensile Sample Lamination and Inner Quality of Q345 Slabs
In order to find the relationship between tensile sample laminations and inner quality of Q345 slabs, casting trials in conditions of with and without EMS and different superheating have been carried out. It is found that slab inner quality can be improved a lot with EMS, center equiaxial grain ratio increases greatly. Lowering superheating leads to downgrading of center deviation, however, center equiaxial grain ratio increases not too much compared with EMS. Tensile samples produced by above-mentioned measures do not break in the center area.
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
T. Y. Cao et al., "Study on the Relationship between Tensile Sample Lamination and Inner Quality of Q345 Slabs", Advanced Materials Research, Vols. 295-297, pp. 107-112, 2011