The electrochemical method application of in-service degradation control of port cranes steels
Journal Title: Вісник Тернопільського національного технічного університету - Year 2016, Vol 83, Issue 3
Abstract
Long-term service of marine port cranes causes a deterioration of mechanical properties of their structural materials, especially plasticity and brittle fracture resistance. Therefore it is important to control not only defects accumulated during service, but also a state of metal using non-destructive methods. The electrochemical approach could be effective for this purpose. Two parameters – mechanical (impact strength) and electrochemical (polarization resistance) were used as sensitive to port cranes steels degradation. Impact strength was evaluated using specimens cut across the steel rolling direction and polarization resistance was calculated on the base of polarization curves obtained in 3% NaCl. The clear downward trend for the both, electrochemical and mechanical, informative parameters has been given. The method was applied in the field conditions for a prediction of the steel impact strength of the operated port crane.
Authors and Affiliations
Ihor Reshchenko
Keywords
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