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Materials science & engineering. properties, microstructure and processing. A, Structural materials v.685, 2017년, pp.358 - 366   SCI SCIE
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An analysis of ridging of ferritic stainless steel 430

Ma, Xiaoguang (School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, NSW 2522, Australia ); Zhao, Jingwei ( School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, NSW 2522, Australia ); Du, Wei ( Stainless Steel Technical Centre, Baosteel Research Institute (R&D Centre), Baoshan Iron & Steel Co., Ltd., Shanghai 200431, China ); Zhang, Xin ( Stainless Steel Technical Centre, Baosteel Research Institute (R&D Centre), Baoshan Iron & Steel Co., Ltd., Shanghai 200431, China ); Jiang, Laizhu ( Stainless Steel Technical Centre, Baosteel Research Institute (R&D Centre), Baoshan Iron & Steel Co., Ltd., Shanghai 200431, China ); Jiang, Zhengyi ( School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, NSW 2522, Australia );
  • 초록  

    Abstract Currently, it is widely acknowledged that ridging is caused by different plastic deformations from grains with different textures. In this study, a simplified model was used to predict the ridging height with different elongation values based on crystal plasticity (CP) and EBSD information with the purpose of understanding well the effect of texture and average grain size on the ridging generation and reduction of undesirable surface defects of ferritic stainless steel (FSS) 430 during the formation process. The results indicate that the reduction of average grain is effective to improve ridging generation in FSS along tensile directions. The numerical simulation results obtained using the crystal plasticity finite element model (CPFEM) match well with experimental values, which demonstrates that the CPFEM could be employed to analyse the ridging phenomenon under different elongation conditions of FSS. Based on the established models, the ridging modes of colonies with different crystal orientations ({001} , {112} and {114} ) are discussed to evaluate the effect of texture structure on ridging generation.


  • 주제어

    Ridging .   Ferritic stainless steel .   Crystal plasticity finite element method .   Texture.  

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