Authors: Yurii Vynnykov | Svitlana Manhura | Aleksej Aniskin | Мaryna Rybalko | Yuliia Nikolaienko | Andrii Manhura
Source: Mining of Mineral Deposits (article, 2025-12-30)
Field: Materials Science — Materials Chemistry

Modeling corrosion crack resistance of oil tanks using neural network analysis Purpose. The research aims to study the influence of aggressive components on corrosion crack resistance of tank steels used in tank farms for long-term storage of oil and petroleum products using neural network analysis. Methods. The MATLAB (MATrix LABoratory) system was chosen as the tool environment for interface modeling. It is a high-level programming language for technical calculations. Corrosion crack resistance testing of oil tanks was conducted on samples of 09G2S tank steel from dismantled tanks (with a service life of 5 and 10 years). The tests were performed in model environments at various NaCl concentrations and temperatures in accordance with the NACE standard on cylindrical samples with a diameter of 4 mm. During the research, neural network analysis, which is well suited for working with complex, non-linear dependences, was used to model the corrosion crack resistance of oil tanks. The neural network learns from the collected data, identifying complex correlations between input parameters and the probability of crack formation. Findings. Using an artificial neural network, dependences of the corrosion crack resistance of oil tanks, in particular, the rates of local corrosion and the steel destruction process were obtained for any set of known parameters such as sodium chloride concentrations in the experimental medium. Using trained neural networks, generalized corrosion rate dependences of oil tanks on the parameters of environments with different sodium chloride concentrations were obtained, and based on them the corrosion behaviour of tank steel was predicted. Based on the results of neural network analysis, the residual service life of steel tanks for storing oil and petroleum products has been determined, taking into account actual operating conditions. Originality. For the first time, neural network analysis has been used to model the corrosion crack resistance of oil tanks, which made it possible to obtain a neural model capable of predicting the corrosion resistance of steels depending on their chemical composition and the corrosion-active environment concentration. For the first time, an artificial neural network has been used to analyze and predict the remaining service life of steel tanks, allowing the remaining service life of oil tank steels to be predicted taking into account actual operating conditions, thereby reducing the risk of accidents. Practical implications. The proposed technology for applying neural network analysis can be used to predict the crack resistance of new tanks, assess the remaining service life of oil tanks, and plan preventive maintenance and technical servicing of tanks. Corrosion ; Artificial neural network ; Service life ; Storage tank ; Chloride ; Oil tank ; MATLAB ; Water tanks Material Properties and Failure Mechanisms ; Engineering Diagnostics and Reliability ; Industrial Engineering and Technologies