Effects of Zr addition on evolution behavior of inclusions in EH36 shipbuilding steel: from casting to welding
Xiao-dong Zou 1 �� Jin-cheng Sun1 �� Da-peng Zhao1 �� Hiroyuki Matsuura 2 �� Cong Wang 1
1 School of Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China 2 Department of Materials Engineering, The University of Tokyo, Tokyo 113-8656, Japan
Effects of Zr addition on evolution behavior of inclusions in EH36 shipbuilding steel: from casting to welding
Xiao-dong Zou 1 �� Jin-cheng Sun1 �� Da-peng Zhao1 �� Hiroyuki Matsuura 2 �� Cong Wang 1
1 School of Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China 2 Department of Materials Engineering, The University of Tokyo, Tokyo 113-8656, Japan
ժҪ The inclusions evolution behavior in the continuous casting slab, rolled plates, and simulated welding samples of EH36 steels with and without Zr addition has been systematically investigated. The inclusions in plain EH36 steel are almost composed of Al�CCa�CS�CO(�CMn) and undergo negligible changes during the whole process. With Zr addition, a large amount of individually fine MnS precipitates and Zr-containing inclusions are generated. In the rolled EH36-Zr sample, Zr-containing complex inclusions are effective to promote the nucleation of acicular ferrite on the surface, which are hardly found in the simulated welding sample of EH36-Zr steel due to the segregation of soluble Ti and Zr on the grain boundary.
Abstract��The inclusions evolution behavior in the continuous casting slab, rolled plates, and simulated welding samples of EH36 steels with and without Zr addition has been systematically investigated. The inclusions in plain EH36 steel are almost composed of Al�CCa�CS�CO(�CMn) and undergo negligible changes during the whole process. With Zr addition, a large amount of individually fine MnS precipitates and Zr-containing inclusions are generated. In the rolled EH36-Zr sample, Zr-containing complex inclusions are effective to promote the nucleation of acicular ferrite on the surface, which are hardly found in the simulated welding sample of EH36-Zr steel due to the segregation of soluble Ti and Zr on the grain boundary.
Xiao-dong Zou �� Jin-cheng Sun �� Da-peng Zhao �� Hiroyuki Matsuura �� Cong Wang . Effects of Zr addition on evolution behavior of inclusions in EH36 shipbuilding steel: from casting to welding[J].Journal of Iron and Steel Research International, 2018, 25(2): 164-172.
Xiao-dong Zou �� Jin-cheng Sun �� Da-peng Zhao �� Hiroyuki Matsuura �� Cong Wang . Effects of Zr addition on evolution behavior of inclusions in EH36 shipbuilding steel: from casting to welding. , 2018, 25(2): 164-172.
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