Search academic texts

Registration Number

0223U003889, 0122U201297 , R & D reports

Title

Modeling and application of highly concentrated energy sources for surface modification of alloys

Head

Yefremenko Vasyl H., Доктор технічних наук

Registration Date

18-07-2023

Organization

State Higher Educational Institution "Azov State Technical University"

Description

 The object of research is the processes of phase-structural transformations and wear resistance in the surface layers of as-cast and LBPF-print biomedical alloys, treated with highly concentrated energy sources, which included the use of pulsed plasma and a laser beam. The purpose of the work is to determine the effect of the plasma pulse on the phase-structural modification and wear resistance of the surface of biomedical alloys; development of a mathematical model of laser surface heating for calculating the layer-by-layer temperature distribution along the depth of samples when scanning with a laser beam at different speeds. Research methods: optical and electron microscopy, energy dispersive spectroscopy, microhardness measurement, tribological tests, methods of mathematical planning of the experiment. The paper describes the microstructure, phase state, and tribological characteristics of the surface layers modified by pulse-plasma processing and laser melting; a computer model of the temperature distribution on the surface of biomedical alloys obtained in different ways, when heated by a laser beam, depending on the scanning speed and parameters of pulse-plasma processing, is described.

Product Description

popup.authors

Yefremenko Vasyl H.
Dzherenova Antonina V
Zurnadzhy Vadym I.
Tsvetkova Olena V
Chabak Yuliia Н.