3D Center Segregation Reconstruction of Steel Continuous Casting Slab
3D Center Segregation Reconstruction of Steel Continuous Casting Slab
复制标题
钢连铸板坯3D中心偏析重构
DOI：
10.1002/srin.201900254
复制
发表时间：
2019-10
影响因子：
2.2
通讯作者：
Li X.
中科院分区：
文献类型：
--
作者：
Xiao R.;Wang J.;Xie X.;Guo F.;Li X.
传统的铸坯中心偏析检测方法是在二维平面上进行观察的，仅限于定量评价铸坯质量。提出了一种铸坯中心偏析的三维重建方法。首先，利用超声扫描技术对分层和热酸蚀钢试样的缺陷进行扫描，获得序列超声图像。其次，采用迭代阈值法分割出各层偏析缺陷的结构;然后，图像失真被校正并对准到相同的物理空间。最后，对偏析缺陷的三维结构进行了重建。对70 mm × 30 mm × 2 mm的铸钢板坯试样进行了实验评价，每磨削0.5 mm，实验结果表明，该方法能够准确提取偏析缺陷的结构。该方法不仅可以直观地观察到缺陷在三维空间中的结构，而且可以计算出缺陷的体积（29.32 mm 3）和表面积（649.48 mm 2），从而更准确地测量出铸坯的质量。为评价钢板质量提供了一种新的方法。
The traditional detection method of the center segregation is limited to quantitatively evaluate the quality of steel casting slab, as it is observed in a 2D plane. Herein, a 3D reconstruction method of center segregation in steel slab is proposed. First, the ultrasonic scanning technology is used to scan the faults of layered and hot‐acid‐etched steel samples to obtain the sequence ultrasonic images. Second, the structures of segregation defects in each slice are segmented by an iterative threshold method. Then, image distortion is corrected and aligned to the same physical space. Finally, the 3D structure of segregation defects is reconstructed. A 70 mm × 30 mm × 2 mm sample of steel casting slab, which grinded with each 0.5 mm, is tested for evaluation, and experimental results show that the proposed method can accurately extract the structure of segregation defects. Based on the proposed method, its structure in 3D space is not only directly observed but also the volume (29.32 mm3) and surface area (649.48 mm2) of defects are calculated to measure the quality of steel slab more accurately. Therefore, it provides a new way to evaluate the steel‐slab quality.
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影响因子：
3.7
作者：
Henri Gouraud
通讯作者：
Henri Gouraud
DOI：
10.1109/tvcg.2003.1175094
发表时间：
2003-01-01
影响因子：
5.2
作者：
Lopes, A;Brodlie, K
通讯作者：
Brodlie, K
影响因子：
11.2
作者：
Zhang, Qi;Zhao, Xiaoyu;Li, Yu
通讯作者：
Li, Yu
影响因子：
3.7
作者：
GOURAUD, H
通讯作者：
GOURAUD, H
DOI：
10.1007/978-1-4899-3216-7
发表时间：
1993
期刊：
--
影响因子：
--
作者：
M. Sonka;Václav Hlaváč;R. Boyle
通讯作者：
M. Sonka;Václav Hlaváč;R. Boyle