TITLE:
Severe Plastic Deformation of Steel Induced by Ultrasonic Vibrations
AUTHORS:
C. Xu, Y. Cui, Q. Han
KEYWORDS:
Severe Plastic Deformation; Nanostructured Materials; Ultrasonic Vibration
JOURNAL NAME:
Open Journal of Metal,
Vol.3 No.1,
March
26,
2013
ABSTRACT: High-intensity ultrasonic vibration was focused on the tip of conical steel specimens to induce severe plastic deformation at room temperature. We found, for the first time, that grain size smaller than 200 nm was obtained. Furthermore, the sharp tip of the conical specimen became umbrella-shaped or disk-shaped. The tip size changed from 0.5 mm diameter to a disk about 5 mm diameter, representing a large amount of plastic deformation in the metal at the tip of the conical specimen.