|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials 2021
||Characterization of Solidification Structure Morphology in High-carbon Steel Billet by Fractal Dimension
||Jianghai Cao, Zibing Hou, Zhiqiang Peng, Dongwei Guo, Ping Tang
|On-Site Speaker (Planned)
High-carbon steel is one of the typical high-end steels, and its solidification morphology have great influence on the quality of steels. In this work, fractal dimension was introduced to describe solidification structure morphology in 82B cord steel billet with 0.82 wt% carbon content. Fractal dimension was calculated using box-counting method (DBox), sandbox method (DSand) and branching method (DBran). It was demonstrated that the fractal dimension is effective to characterize quantitatively the complexity of solidification structure morphology. The value of fractal dimension calculated by the above three methods are not the same due to different calculation methods describe solidification structure characteristics from different angles. In additional, the relationship between fractal dimension and secondary dendrite arm spacing (SDAS) and segregation area ratio (Rseg) was discussed. Fractal dimension calculated by box-counting method was well-correlated with SDAS and Rseg. This result demonstrated box-counting method can better reflect solidification characteristics of the billet than sandbox method and branching method.
||Iron and Steel, Characterization, Solidification