Abstract—
The possibilities of using nondestructive acoustic testing to determine the features of the spatial distribution of local plastic deformations during deformation of flat samples made of AMg61 alloy have been investigated. The methodological features of using the acoustic anisotropy parameter to study the patterns of changes in spatial inhomogeneities of the field of local plastic deformations are analyzed. A computational and experimental technique for determining the acoustic anisotropy parameter is presented that allows one to correctly determine not only its magnitude, but also the directions of the local axes of acoustic anisotropy. The sources of errors of the proposed methodology, the limits of its applicability, as well as the requirements for hardware and software for its implementation are considered. The results of experimental studies carried out on samples of weakly anisotropic aluminum alloy AMg61 are compared with the representations of autowave mechanics of plasticity of metals. An engineering algorithm for determining the early localization of zones of loss of stability during plastic deformation of samples is proposed. The possibility of creating a methodology for assessing the plasticity resource of a material during its plastic shaping is shown.
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Funding
The research was carried out under the grant of the Russian Academy of Sciences, project no. 19-19-00332-P “Development of scientifically justified approaches and hardware and software tools for monitoring structural materials damage based on artificial intelligence approaches to ensure the safe operation of technical facilities in Arctic conditions.”
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Khlybov, A.A., Uglov, A.L. On an Acoustic Testing Method for Monitoring the Spatial Inhomogeneity of Plastic Deformation in Weakly Anisotropic Orthotropic Materials. Russ J Nondestruct Test 59, 22–32 (2023). https://doi.org/10.1134/S1061830923700183
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DOI: https://doi.org/10.1134/S1061830923700183