Eddy Current Testing Based Non-Destructive Inspection for Metal 3D Additive Manufacturing Objects With HTS-SQUID

被引：3
|
作者：
Kasa, Tomoki [1 ]
Sun, Wenxu [1 ]
Hatsukade, Yoshimi [1 ]
Yonehara, Makiko [2 ]
Ikeshoji, Toshi-Taka [2 ]
Kyogoku, Hideki [2 ]
机构：
[1] Kindai Univ, Fac Engn, Hiroshima 7392116, Japan
[2] Kindai Univ, Res Inst Fundamental Technol Next Generat, Hiroshima 7392116, Japan
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2023年 / 33卷 / 05期
关键词：
HTS-SQUID; eddy current testing; metal 3D additive manufacturing; powder bed fusion; AlSi10Mg; TOMOGRAPHY; FLAWS;
D O I：
10.1109/TASC.2023.3248001
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this work, we applied eddy-current-testing-based HTS-SQUID non-destructive inspection (ECT-based HTS-SQUID NDI) system for inspection of metal 3D additive manufacturing (AM) objects, which were made of AlSi10Mg powder with powder bed fusion (PBF) method. The inspection system combines an ECT probe with an HTS-SQUID gradiometer as high sensitive readout magnetic sensor in low frequency range to overcome disadvantage of conventional ECT. We prepared 5 samples with different densities by changing parameters in the PBF process. Densities of the samples #1-#5 were estimated to be 2.65, 2.64, 2.62, 2.58, and 2.51 g/cm(3), respectively. The samples were measured by the inspection system with an excitation current of 20 mA at 1.6 kHz, and lift-off of about 1 mm. In inspection results, anomalous magnetic patterns appeared on the sample #3, #4 and #5. The inspection results were verified with X-ray CT scanning. Comparison between the ECT inspection and the X-ray CT results reveals that the positions of the anomalous magnetic patterns show strong correlation with the positions of high porosity existing in the samples.
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页数：4
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