Synthesis of Composite Layers on Cu–39Zn–1Pb Brass Using Ultrasonic Impact Treatment
A. P. Burmak$^{1}$, B. N. Mordyuk$^{2}$, S. M. Voloshko$^{1}$, V. I. Zakiev$^{3}$, V. V. Mohylko$^{1}$
$^{1}$National Technical University of Ukraine ‘Igor Sikorsky Kyiv Polytechnic Institute’, 37 Peremohy Ave., UA-03056 Kyiv, Ukraine
$^{2}$G. V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
$^{3}$National Aviation University, 1 Lyubomyr Huzar Ave., UA-03058 Kyiv, Ukraine
Received: 29.04.2020. Download: PDF
The structure, phase composition and mechanical properties of composite coatings synthesized by ultrasonic impact treatment (UIT) of surface layers of two-phase Cu39Zn1Pb brass with the addition of Al$_2$O$_3$, SiC and $\beta$-Si$_3$N$_4$ powders are investigated. Due to the intense plastic deformation caused by the UIT, there is a partial grinding and incorporation of powders into the surface layer of brass. The proposed approach allows the synthesis of high strength composite coatings with a thickness of about 100 $\mu$m with a gradient structure. The maximum effect of hardening can be in 4 times higher in comparison with the initial state of brass under conditions of reinforcing with Al$_2$O$_3$ and SiC powders. The presence of a transition layer up to 150 $\mu$m thick confirms the high adhesion of the coating to the base material.
Key words: ultrasonic impact treatment, intensive plastic deformation, composite layer, microhardness, phase composition, surface morphology.
URL: http://mfint.imp.kiev.ua/en/abstract/v42/i09/1245.html
DOI: https://doi.org/10.15407/mfint.42.09.1245
PACS: 43.35.+d, 62.20.Qp, 81.40.Ef, 81.40.Lm, 81.65.-b, 83.10.Tv, 83.50.Uv
Citation: A. P. Burmak, B. N. Mordyuk, S. M. Voloshko, V. I. Zakiev, and V. V. Mohylko, Synthesis of Composite Layers on Cu–39Zn–1Pb Brass Using Ultrasonic Impact Treatment, Metallofiz. Noveishie Tekhnol., 42, No. 9: 1245—1264 (2020) (in Ukrainian)