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首页> 外文会议>International Conference on Metal Forming >Prediction of ridging by 3-dimensional texture in ferritic stainless steels
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Prediction of ridging by 3-dimensional texture in ferritic stainless steels

机译：铁素体不锈钢三维纹理壁的预测

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Experimental and numerical investigations of the ridging in ferritic stainless steels were presented in this paper. Two kinds of ferritic stainless steels exhibiting different levels of ridging were selected as model materials. The measured roughness of the uniaxially elongated specimens up to 15% in rolling direction (RD) was compared to the prediction using a rate-dependent crystal plasticity FEM (CPFEM). Initial textures of the two materials on 5 equi-spaced sequential RD planes were obtained by EBSD measurement. The initial textures were utilized as input data for the constitutive parameters of the crystal plasticity. Measured respective single planar textures were collected all together so that the 5-layer textures complete 3-dimensional structure and they were mapped onto the FE mesh. Ridging profiles predicted by the CPFEM using both every single layer texture and multilayer texture were compared to the experimental results. Predicted ridging profile of a material exhibiting weak ridging by using 5-layer EBSD mapping was in good agreement with the experimental result. On the other hand, prediction by using only single layer texture was efficient to estimate the ridging in a material exhibiting severe ridging due to the elongated cluster of analogous orientations along RD.
机译：本文介绍了铁素体不锈钢壁的实验性和数值研究。选择具有不同脊髓水平的两种铁素体不锈钢作为模型材料。将单轴细长标本的测量粗糙度与使用速率依赖性晶体可塑性FEM（CPFEM）的预测进行比较了滚动方向（RD）。通过EBSD测量获得了5个QUACI-间隔顺序RD平面上的两种材料的初始纹理。初始纹理用作晶体塑性本构体参数的输入数据。测量各自的单个平面纹理被收集在一起，使得5层纹理完全三维结构，它们被映射到Fe网格上。将CPEMEM使用每层纹理和多层纹理两者预测的骑行简档与实验结果进行了比较。通过使用5层EBSD映射表现出弱壁的材料的预测探测轮廓与实验结果非常一致。另一方面，仅使用单层纹理的预测是有效的，以估计由于沿RD的细长的类似方向的细长簇呈现严重磨损的材料中的壁。

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