Contribution of ultrasonic surface rolling process to the fatigue properties of TB8 alloy with body-centered cubic structure

Dan Liu, Daoxin Liu, Mario Guagliano, Xingchen Xu, Kaifa Fan, Sara Bagherifard

Table 3 USRP parameters and the corresponding fatigue lives in the initial tests performed (at a maximum stress amplitude of 450 MPa) to identify the optimized parameters.

Sample number Lathe rotational speed (r/min) Feed rate (mm/rev) Static stress (MPa) Fatigue life (cycle) 1 55 0.08 480 85853 2 55 0.10 630 99228 3 55 0.12 780 66395 4 75 0.08 630 91504 5 75 0.10 780 68176 6 75 0.12 480 176080 7 95 0.08 780 57918 8 95 0.10 480 110210 9 95 0.12 630 75084