Technical Diagnostics and Non-Destructive Testing, 2025, №04

2025 №04 (05)

DOI of Article 10.37434/tdnk2025.04.06

2025 №04 (01)

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"Tekhnichna Diahnostyka ta Neruinivnyi Kontrol" (Technical Diagnostics and Non-Destructive Testing) #4, 2025, pp. 44-48

Practical experience of application and analysis of the effectiveness of various magnetic suspensions

V.S. Yakotyuk, S.M. Glabets, Yu.Yu. Lysenko, A.S. Momot

National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute». 37 Beresteysky Ave., 03056, Kyiv, Ukraine. 37 Beresteisky Ave., 03056, Kyiv. E-mail: j.lysenko@kpi.ua

Magnetic particle inspection is an efficient non-destructive testing technique, which is used to detect defects in ferromagnetic materials. Despite the continuous development and introduction of modern technologies, practical aspects of application and analysis of the effectiveness of consumable materials, in particular, magnetic suspensions, remain extremely important. It becomes especially relevant under the conditions of a limited access to new resources. In this paper the practical experience of application of various magnetic suspensions is analyzed, and experimental assessment of their effectiveness is performed on standard specimens MTU-3 and MT Type 2, which belong to type 1 and type 2 according to EN ISO 9934-2:2015, respectively. The study included analysis of ready-to-use suspensions in aerosol cans, concentrates and suspensions with different shelf life and preparation. Experimental results demonstrate the influence of the suspension quality and its shelf life on the effectiveness of defect detection, emphasizing the need for a thorough selection and monitoring of the condition of consumable materials to ensure the reliability. The revealed differences in the effectiveness of various suspensions and the influence of their shelf life on inspection sensitivity are of great practical importance for specialists on non-destructive testing. 15 Ref., 4 Fig.
Keywords: magnetic particle inspection, modern non-destructive testing technologies, fluorescent suspensions, magnetic concentrates, effectiveness, feasibility analysis, defect detection, image processing

Received: 12.11.25
Received in revised form: 10.12.25
Accepted: 19.12.25

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