Progress in scientific research of interfaces in steel (Ⅰ)
ZHANG Fu-cheng1,2, KANG Jie3
1. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, Hebei, China; 2. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China; 3. School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, Hebei, China
Abstract：Interfaces in steel,including grain boundaries and phase boundaries,differ significantly in structure and chemical composition from the bulk phase. They are also energetically specific and have a very important influence on the phase transformation mechanism and service performance of steel. In recent years,the rapid development of materials analysis and testing methods,combined with techniques and methods such as first principles and finite element simulations,have led to further insights into the science of interfaces in steel and a richer and more varied body of research in this area,with numerous results. An overview of domestic and international research developments in the regulation of microscopic solid-solid interfaces in steel was provided,covering both grain boundaries in single-phase steels and phase boundaries in multi-phase steels. A brief overview of the formation mechanisms of various interfaces in steel is given,and the energy differences,orientation differences and stress distribution of different interface types are discussed. Focusing on the control of interfacial quantity,interfacial structure and interfacial segregation,the influence of interface control methods,such as heat treatment,deformation and forming methods,on the formation of the final interface structure and chemical composition segregation is discussed. The application of advanced technical methods to characterize the interface structure and interfacial composition segregation is introduced. Finally,the future development trends of interfaces are predicted in terms of interfacial controlling methods,computer simulations and technical characterization methods.
张福成, 康杰. 钢中界面科学研究进展(Ⅰ)[J]. 钢铁, 2022, 57(8): 11-29.
ZHANG Fu-cheng, KANG Jie. Progress in scientific research of interfaces in steel (Ⅰ)[J]. Iron and Steel, 2022, 57(8): 11-29.
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2022, Vol. 57 
