2022 №04 (04) DOI of Article
2022 №04 (06)

Technical Diagnostics and Non-Destructive Testing 2022 #04
Technical Diagnostics and Non-Destructive Testing #4, 2022, pp. 33-40

Express evaluation of the quality of producing caterpillar tracks by the results of coercive force measurement

O.P. Gopkalo1, O.E. Gopkalo1, M.P. Zemtsov1, E.V. Kovalenko2, V.E. Bodunov1

1G.S. Pisarenko Institute for Problems of Strength of NASU. 2 Timiryazevska Str., 01014, Kyiv, Ukraine. E-mail: ips@ipp.kiev.ua
2LLC «SPC Aviation Systems of Ukraine». 8 Redutna, 01015, Kyiv, Ukraine. E-mail: spc.asu.LTD@gmail.com

Coercimetric testing revealed essential differences in metal structure in the subsurface layer of experimental caterpillar tracks. Obtained experimental results of 4-point bend testing of experimental caterpillar tracks from steels which somewhat differ by their chemical composition, confirmed the possibility of application of nondestructive coercimetric testing for assessment of the initial structural state and level of loading of the metal, which characterizes the degree of sustained damage after loading. Metal of a sound track from steel of 110G13L type in the initial condition should have negative values of the coercive force that is ensured by its optimal structural state. This circumstance can provide substantiation for introducing coercimetric testing for express-evaluation of the quality of castings and their heat treatment. 7 Ref., 4 Tabl., 10 Fig.
Keywords: caterpillar tracks, structuroscope, coercive force, structural state

Received: 06.10.2022


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5. Gopkalo, O.P., Zemtsov, M.P., Gopkalo, O.Ye., et al. (2021) Diagnosis of damage to caterpillar tracks under mechanical loading based on the results of measurement of the coercive force. Tekh. Diahnost. ta Neruiniv. Kontrol, 1, 17-26 [in Ukrainian]. https://doi.org/10.37434/tdnk2021.01.03
6. Gopkalo, O.P., Nekhotiashchiy, V.O., Bezludko, G.Ya. et al. (2019) Giagnosis of damage in austenitic steel AISI 304 at mechanical loading by measurements of coercive force. Ibid., 4, 12-24 [in Ukrainian]. DOI:https://doi.org/10.37434/tdnk2019.04.01
7. Gopkalo, O., Bezlyudko, G., Nekhotiashchiy, V., Gopkalo, O.Ye., Kurash, Yu. (2020) Damage evaluation for AISI 304 steel under cyclic loading based on coercive force measurements. Int. J. Fatigue, Vol. 139. https://doi.org/10.1016/j.ijfatigue.2020.105752

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