Abstract
In this work, the effects of loading condition and corrosion solution on the corrosion fatigue behavior of smooth steel wire were discussed. The results of polarization curves and weight loss curves showed that the corrosion of steel wire in acid solution was more severe than that in neutral and alkaline solutions. With the extension of immersion time in acid solution, the cathodic reaction of steel wire gradually changed from the reduction of hydrogen ion to the reduction of oxygen, but was always the reduction of hydrogen ion in neutral and alkaline solutions. The corrosion kinetic parameters and equivalent circuits of steel wires were also obtained by simulating the Nyquist diagrams. In corrosion fatigue test, the effect of stress ratio and loading frequency on the crack initiation mechanism was emphasized. The strong corrosivity of acid solution could accelerate the nucleation of crack tip. The initiation mechanism of crack under different conditions was summarized according to the side and fracture surface morphologies. For the crack initiation mechanism of anodic dissolution, the stronger the corrosivity of solution was, the more easily the fatigue crack source formed, while, for the crack initiation mechanism of deformation activation, the lower stress ratio and higher frequency would accelerate the generation of corrosion fatigue crack source.
Highlights
Mine steel wire rope is an important part of the mine hoist transport system, which connects the hoisting container and the hoist
The results of polarization curves and weight loss curves showed that the corrosion of steel wire was the most severe in acid solution
At late stage of immersion, the cathodic reaction of steel wire gradually changed from the reduction of hydrogen ion to the reduction of oxygen in acid solution, whereas this was always the reduction of hydrogen ion in neutral and alkaline solutions
Summary
Mine steel wire rope is an important part of the mine hoist transport system, which connects the hoisting container and the hoist. The lifespan of steel wire rope directly affects the safe operation and normal production of a coalmine [1,2]. The damage of mine steel wire rope occurs because of the bad working environment. A major accident will be caused by the fracture of mine steel wire rope. Mine steel wire rope is composed of cold drawn steel wires. The failure analysis of cold drawn steel wire is always a hot issue. The corrosion, fatigue and wear are the three main failure forms [3], while the fatigue failure analysis of steel wire is the most widely studied
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
