Original scientific paper

https://doi.org/10.21278/TOF.454022820

Analysis and Model of Corrosion Wear of Selected Materials Used in Special Vehicles

Jiri Stodola orcid.org/0000-0001-8846-5731 ; University of Defence Brno, Faculty of Military Technology, Brno, Czech Republic
Petr Stodola orcid.org/0000-0002-2251-8711 ; University of Defence Brno, Faculty of Military Leadership, Brno, Czech Republic

Abstract

The paper deals with the evaluation and modelling of corrosion wear of two standard materials used in the construction of special vehicles. The experimental research on corrosion wear involved the testing of two steels, EN 10131 and EN C22R, in a salt spray at 35 and 50 oC for 24, 48, 120 and 144 hours. The model of the process of corrosion degradation of the tested materials uses the results of weight loss of the samples as a function of temperature and exposure time. The diagnostic macroscopic evaluation of corroded surfaces of the tested materials, using graphic (analogue) information of surfaces and its conversion into the digital form, is a completely new technology. The samples were photographed using a CCD camera, then pre-processed, segmented, and masks were created for the logic of deciding what corrosion is and what it is not. The final filtered image was created in binary values where logic 1 refers to a corroded and logic 0 to a non-corroded sample. The MATLAB software environment and the Image Processing Toolbox were used to process the results of the surface evaluation.

Keywords

metal corrosion; salt spray corrosion tests; analysis; digital evaluation of material surfaces; evaluation and modelling of corrosion wear

Hrčak ID:

272843

URI

https://hrcak.srce.hr/272843

Publication date:

18.3.2022.

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