| USRP | Ultrasonic surface rolling process |
| EBSD | Electron Backscatter Diffraction |
| TEM | Transmission Electron Microscopy |
| PH | Precipitation hardened |
| SEM | Scanning electron microscopy |
| UNSM | Ultrasonic Nano Surface Modification |
| LSCM | Confocal laser scanning microscopy |
| XRD | X-ray diffraction |
| P-N | Predicted failure probability and Number of cycles |
| P-S-N | Predicted failure probability and Stress and Number of cycles |
| FWHM | Full width at half maximum |