Scanning the Welded Seams of Titanium Alloys by Using Subminiature Eddy Current Transducers

Abstract:

The eddy current transformer (EST) of the transformer type is used to construct a sensor for investigating titanium sheets joined by a welded joint. The article provides the key technical information about the eddy current transformer used and describes the methodology of measurements that makes it possible to control defects in the welding seams of titanium alloys. It is capable of automatically changing the filtering cutoff frequency and operating frequency of the device. The designed measuring system eliminates the main drawback of eddy current transformers (the small area of the electromagnetic field), simultaneously significantly reducing the noise level due to the use of high-quality amplifiers and filters, and searches for defects in and alloys of different metals. A measurement procedure that allows one to perform high-accuracy monitoring of flaws in different alloys is described. Experiments were conducted on welded BT1-0 titanium plates. The article contains the results of these measurements. The dependence data facilitates the assessment of the quality of welding seams and helps make an educated conclusion about welding quality.

• Periodical: Materials Science Forum (Volume 906)
• Pages: 147-152
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.906.147
• Online since: September 2017
• Authors: S. Dmitriev, A. Ishkov, Vladimir N. Malikov*, A. Sagalakov
• Keywords: Titanium Alloys, Welding

References

[1] Matsunawa A, Seto N, Kim J-D , Mizutani M and Katayama S 2000 Proc. The Int. Society for Optical Engineering (Osaka, Japan, February 2000) 3888 34-45F.

[2] Deng W, Shark L K, Matuszewski B J, Smith J P and Cavaccini G 2004 INSIGHT 46 157-161.

[3] Gros X E, Bousique J and Takahashi K 1999 NDT&E Int. 32 283-292.

[4] Vargas P, Baxter CF, Schutz RW, 2011 30th International Conference on Offshore Mechanics and Arctic Engineering, OMAE2011 1 50222.

[5] Horn A M, Hauge M, Rostadsand P-A, Bjornbakk B, Dahlberg P and Fossesholm T 2002 21st International Conference on Offshore Mechanics and Arctic Engineering, OMAE2002 1 28445.

DOI: 10.1115/omae2002-28445

[6] Chady T. and Frankowski P 2011 AIP Conference Proceedings 1335 1709.

[7] Semenov V 2003 Vestn. Tekhn. Gos. Univ. 278 48-53.

[8] Barbato L 2015 IEEE Trans. on Magn. 51.

[9] Prance K, Clark T 2011 Sens. and Act. A: Phys. 85 361-364.

[10] García-Martín J, Gómez-Gil J, and Vázquez-Sánchez E 2011 Sensors (Basel) 11(3) 2525.