AM	Additive Manufacturing
EP-USRP	Electropulsing-Assisted Ultrasonic Surface Rolling Process
GNS	Gradient Nanostrcutured Surface
HVOF	High-Velocity Oxygen Fuel
LSP	Laser Shock Peening
LSSP	Laser Shock Surface Patterning
RCS	Residual Compressive Stress
SP	Shot Peening
SPD	Severe Plastic Deformation
SSP	Severe Shot Peening
SS	Stainless Steel
SEM	Scanning Electron Microscope
SMAT	Surface Mechanical Attrition Treatment
SBF	Simulated Body Fluid
SFE	Stacking Fault Energy
TEM	Transmission Electron Microscopy
USP	Ultrasonic Shot Peening
UIP	Ultrasonic Impact Peening
USRP	Ultrasonic Surface Rolling Process
UNSM	Ultrasonic Nanocrystal Surface Modification