Three-dimensional characterization of typical inclusions in steel
Zhiqiang Shang, Tao Li; Shufeng Yang, Jianchuan Yan, Han Guod - College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China - Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and Advanced Materials, Chongqing University, Chongqing, 400044, China - School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China - Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, CAS, Shanghai, 201204, China
The non-metallic inclusions are mostly harmful to the propertiesof the steel products. The effective characterization of the size, morphology, and distribution of the inclusions in steel is a key issue to remove and control the inclusions in the metallurgical process. However, the conventional methods usually characterize the inclusions on the cross sections of polished samples, which could only reveal the local features of the inclusions. Therefore, the three-dimensional (3D) observation of the inclusions would provide critical information of the inclusions in the steel matrix. However, it is rare to find the reports of the quantitative investigation of the 3D morphology of inclusion particles.