Severe Plastic Deformation of Steel Induced by Ultrasonic Vibrations

C. Xu, Y. Cui, Q. Han

Department of Mechanical Engineering Technology, Purdue University, West Lafayette, USA.
GE Gas Turbines, LLC, Greenville, USA.
Hans Tech, West Lafayette, USA.

DOI: 10.4236/ojmetal.2013.31001                

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.

Keywords

Severe Plastic Deformation; Nanostructured Materials; Ultrasonic Vibration

Conflicts of Interest

The authors declare no conflicts of interest.

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