Tribosynthesis of friction films and their influence on the functional properties of copper-based antifriction composites for printing machines

Olaleye, Kayode; Roik, Tetiana; Kurzawa, Adam; Gavrysh, Oleg; Pyka, Dariusz; Bocian, Mirosław; Jamroziak, Krzysztof

Tribosynthesis of friction films and their influence on the functional properties of copper-based antifriction composites for printing machines

Materials Science-Poland

Volume 40 (2022): Issue 4 (December 2022)

By:

Kayode Olaleye, Tetiana Roik, Adam Kurzawa, Oleg Gavrysh, Dariusz Pyka, Mirosław Bocian and Krzysztof Jamroziak

Open Access

|May 2023

Figures & Tables

Technological scheme for manufacturing copper-based antifriction composites

Schematic setup of VMT-1 friction testing machine

Structure of Cu-5%Ni-3%Mo-9%CaF2 composite: (A) optical metallography; (B) electron microscopic image

Antifriction film on friction surfaces: (A) examined composite Cu+5%Ni+3%Mo+9%CaF2; (B) counterface of 40Kh steel (analog of 1.7045, 42Cr4 steel, DIN standard, Germany)

Antifriction film with places for micro-X-ray spectral analysis (spectra 1, 2, and 3)

Micro-X-ray spectral analysis of film sections

Deformation and wear process of the antifriction film area: (A) beginning of deformation; (B) forming a crest before peeling off the area

Wear of the film section: (A) peeling; (B) crushing and dispersion

Chemical composition of spectrum 2

Element	Intensity	Weight%	Weight%, σ	Atomic%
CK	3.1867	49.38	0.57	77.22
OK	0.5512	5.61	0.29	7.44
FK	0.4215	1.02	0.22	1.03
PK	0.9402	0.06	0.04	0.04
SK	0.7728	0.53	0.12	0.23
CaK	1.2703	1.03	0.07	0.52
FeK	0.9234	0.98	0.11	0.31
NiK	0.7966	2.74	0.14	0.91
CuK	0.8837	35.27	0.52	11.68
MoL	0.6979	3.38	0.29	0.62
Result		100.00		100.00

Chemical composition of spectrum 3

Element	Intensity	Weight%	Weight%, σ	Atomic%
CK	4.7439	67.59	0.57	89.30
OK	0.4207	3.78	0.34	3.71
FK	0.3612	0.63	0.27	0.53
SK	0.8711	0.36	0.09	0.13
CaK	1.0372	1.56	0.08	0.58
CrK	0.9261	0.38	0.06	0.05
FeK	0.8968	0.44	0.06	0.11
NiK	0.8198	1.54	0.12	0.38
CuK	0.8246	21.59	0.40	4.99
MoL	0.7734	2.13	0.22	0.22
Result		100.00		100.00

Comparative antifriction properties of the studied composite and cast bronze

Composition, wt.%	Friction coefficient (f)/wear rate (I), μm/km, at load of 4.0 MPa and rotation speed, rph			Maximum permissible rotation speed, rph	Comments
Composition, wt.%	3,000	5,000	7,000	Maximum permissible rotation speed, rph	Comments
Cu + 5Ni + 3Mo + 9CaF₂	0.21/61	0.24/75	0.28/153	7,500	Antifriction films have formed on the contact surfaces
Cast bronze CuSn5ZnPb^* [1]	0.37–0.41/388–405	Plastic deformation	800–1,000	Liquid oil smokes and burns

Chemical composition of spectrum 1

Element	Intensity	Weight%	Weight%, σ	Atomic%
CK	2.0816	12.57	0.71	39.81
OK	0.7860	4.71	0.25	9.91
FK	0.5422	1.82	0.25	3.54
SK	0.8207	0.23	0.22	0.31
CaK	1.0503	1.47	0.09	1.35
FeK	1.1168	0.47	0.11	0.30
NiK	0.9799	4.58	0.22	2.80
CuK	0.9441	66.84	0.80	39.23
MoL	0.6776	7.31	0.64	2.75
Result		100.00		100.00

DOI: https://doi.org/10.2478/msp-2022-0051 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331

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Language: English

Page range: 147 - 157

Submitted on: Feb 9, 2023

Accepted on: Mar 18, 2023

Published on: May 2, 2023

Published by: Sciendo

In partnership with: Paradigm Publishing Services

Publication frequency: 4 times per year

Keywords:

copper-based composite,

antifriction properties,

structure homogeneity,

Related subjects:

Materials sciences, other,

Nanomaterials,

Functional and smart materials,

Materials characterization and properties

© 2023 Kayode Olaleye, Tetiana Roik, Adam Kurzawa, Oleg Gavrysh, Dariusz Pyka, Mirosław Bocian, Krzysztof Jamroziak, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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Tribosynthesis of friction films and their influence on the functional properties of copper-based antifriction composites for printing machines

Figures & Tables

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Chemical composition of spectrum 2

Chemical composition of spectrum 3

Comparative antifriction properties of the studied composite and cast bronze

Chemical composition of spectrum 1

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