基于传输优化电压增强增材制造实验室x射线计算机断层扫描图像对比度

IF 4.5 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Ndt & E International Pub Date : 2025-06-19 DOI:10.1016/j.ndteint.2025.103462

Jiasheng Liu , Xu Qiao , Ke Gong , Fanqiang Meng , Chenggong Zhang , Zhou Zhou

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引用次数: 0

摘要

实验室x射线计算机断层扫描（XCT）被广泛应用于增材制造（AM）领域的缺陷检测。然而，在XCT实验中，决定x射线通过某一样品透射率的x射线源电压存在显著差异。对成像质量的影响在AM领域还没有被研究和讨论。在这项工作中，计算了各种slm制备的样品的单色和多色x射线的理论传输，并通过同步加速器和实验室XCT实验成功地验证了这一点。对不同电压下获得的实验室XCT图像进行了详细评价，当有孔和无孔材料之间的透射差最大时，对比度达到最佳。因此，本研究提出了一种基于传输的方法，通过优化实验室XCT的电压设置来提高图像对比度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Enhanced image contrast in laboratory X-ray computed tomography for additive manufacturing by optimizing voltage based on transmission

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Enhanced image contrast in laboratory X-ray computed tomography for additive manufacturing by optimizing voltage based on transmission

Laboratory X-ray computed tomography (XCT) becomes widely used in the field of additive manufacturing (AM) for defects inspection. However, the voltage of X-ray source, which determines the X-ray transmission through a certain sample, used in XCT experiments is significantly discrepant. The effects on the quality of resulting images have not been studied and discussed in AM field. In this work, the theoretical transmissions of monochromatic and polychromatic X-rays for various SLM-prepared samples were calculated and successfully validated by both synchrotron and laboratory XCT experimentally. The laboratory XCT images obtained with various voltages were evaluated in detail, and the optimal contrast was achieved when the transmission difference between the materials with and without pores was maximum. Thus, this study proposed a transmission-based method to improve image contrast by optimizing the voltage setting in laboratory XCT.

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来源期刊

Ndt & E International 工程技术-材料科学：表征与测试

CiteScore

7.20

自引率

9.50%

发文量

121

审稿时长

55 days

期刊介绍： NDT&E international publishes peer-reviewed results of original research and development in all categories of the fields of nondestructive testing and evaluation including ultrasonics, electromagnetics, radiography, optical and thermal methods. In addition to traditional NDE topics, the emerging technology area of inspection of civil structures and materials is also emphasized. The journal publishes original papers on research and development of new inspection techniques and methods, as well as on novel and innovative applications of established methods. Papers on NDE sensors and their applications both for inspection and process control, as well as papers describing novel NDE systems for structural health monitoring and their performance in industrial settings are also considered. Other regular features include international news, new equipment and a calendar of forthcoming worldwide meetings. This journal is listed in Current Contents.