Jie-Wei Gao, Guang-Ze Dai, Qiu-Ze Li, Min-Nan Zhang, Shun-Peng Zhu*, Jos´e A.F.O. Correia, Grzegorz Lesiuk, Abílio M.P. De Jesus. Fatigue assessment of EA4T railway axles under artificial surface damage. International Journal of Fatigue, 2021, 146: 106157.
https://doi.org/10.1016/j.ijfatigue.2021.106157

Fig. 9. Fatigue crack propagation of (a) EDM specimen and (b) TBD specimen.