Low cycle fatigue studies have been carried out on 2 wt% Mn, 2 wt% Si and 0.1 wt% C steels with dual-phase and tempered martensitic structures. Fatigue crack initiation and propagation were investigated using scanning electron microscopy as well as optical microscopy. In addition, taper-section and cross-section techniques were also performed for more detail studies on the correlation of crack initiation with the internal microstructures of the testing samples. Internal microstructures were also investigated on the dual-phase steel sample before and after fatigue fracture by transmission electron microscopy.
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Wan, C.M., Chou, K.C., Jahn, M.T. et al. Fatigue studies on dual-phase low carbon steel. J Mater Sci 16, 2521–2526 (1981). https://doi.org/10.1007/BF01113591
- Transmission Electron Microscopy
- Fatigue Crack
- Carbon Steel
- Crack Initiation