Influence of ultrasonic processing on the mechanical properties of metals subjected to intense plastic deformation
https://doi.org/10.29235/1561-8323-2022-66-3-356-364
Abstract
An original device for production of nanostructured materials by the method of severe plastic deformation with the imposition of ultrasonic vibrations is described, which provides the grinding of the structure of the material of the workpiece and eliminates the occurrence of defects on its surface and in the end areas. This effect is achieved through the use of an annular spacer made in the form of a hollow waveguide of resonant length, fixed on a fixed support in the displacement unit, connected to a concentrator and an ultrasonic transducer. The physical-mechanical properties of nanostructured samples of nickel and copper after ultrasonic treatment (UST) have been studied. It is shown that UST of nanostructured samples leads to an increase in their plastic properties and a slight decrease in the tensile strength. At small amplitudes of mechanical stresses within 17.5 MPa, a noticeable microhardness increase is observed in copper and nickel samples. A further increase in the mechanical stress amplitude up to 100 MPa during ultrasonic treatment leads to a microhardness decrease.
Supporting agencies: The work has been financially supported by the Belarusian Republican Foundation for Fundamental Research (grant Т19КИТГ-003).
About the Authors
V. V. Rubanik
Institute of Technical Acoustics of the National Academy of Sciences of Belarus
Belarus
Belarus
Rubanik Vasily V. – Corresponding Member, D. Sc. (Engineering), Head of the Laboratory
13, General Ludnikov Ave., 210009, Vitebsk
Yu. V. Tsarenko
Institute of Technical Acoustics of the National Academy of Sciences of Belarus
Belarus
Belarus
Tsarenko Yury V. – Ph. D. (Engineering), Deputy Di rector for Research and Innovation
13, General Ludnikov Ave., 210009, Vitebsk
J. T. Wang
Nanjing University of Science and Technology
China
China
Wang Jing Tao – Professor of Materials Processing, SMSE Vice Director. Herbert Gleiter Institut
163, Xianlin Road, Qixia District, Nanjing, Jiangsu Province, 210023
Yu. W. Liu
Nanjing University of Science and Technology
China
China
Liu Yu Weil – Research associate. School of Materials Science and Engineering
163, Xianlin Road, Qixia District, Nanjing, Jiangsu Province, 210023
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