Effect of hot densification on tribotechnical properties of sintered (Al-12Si)-40Sn alloy

2017 ◽  
Author(s):  
N. M. Rusin ◽  
A. L. Skorentsev ◽  
E. A. Kolubaev
Keyword(s):  
Tribotechnical Properties ◽  
Hot Densification

EVALUATION OF TRIBOTECHNICAL PROPERTIES OF THE COATING OBTAINED BY ELECTRIC SPARK HARDENING

2020 ◽  
Vol 4 (141) ◽  
pp. 157-163
Author(s):  
IL’YA ROMANOV ◽  
◽  
ROMAN ZADOROZHNIY
Keyword(s):  
Wear Resistance ◽  
Reference Sample ◽  
Optical Microscope ◽  
Research Purpose ◽  
Tribotechnical Properties ◽  
Uncoated Surface ◽  
Before And After ◽  
Materials Used ◽  
Friction Track

When applying coatings using various methods on the surfaces of moving parts that work in joints, it is important to make sure that the coatings are strong and wear-resistant in order to return them to their original resource. All existing hardening technologies and materials used to perform coatings have their own characteristics, therefore, the quality of the resulting coatings can be judged only after specific tests. (Research purpose) The research purpose is in evaluating the properties of the coating obtained by the method of electric spark hardening, and its ability to resist friction and mechanical wear. (Materials and methods) Authors conducted tests on the basis of the "Nano-Center" center for collective use. A coating was applied on the BIG-4M unit with a VK-8 hard alloy electrode, tribological properties were evaluated on a CSM Instruments TRB-S-DE-0000 tribometer, the width of the friction track was measured after the test using an inverted OLYMPUS gx51 optical microscope, and samples were weighed before and after the test on a VLR-200 analytical balance. Conducted research in accordance with GOST 23.224-86 and RD 50-662-88 guidelines. (Results and discussion) The article presents performed tests on the run-in and wear resistance of the coating. The samples were worked on with a step-by-step increase in the load. During the tests, the friction force was drawed on the diagram. Authors compared the results with the reference sample, an uncoated surface. (Conclusions) The resulting coating has better run-in and wear resistance compared to the standard, and the increase in wear resistance in dry friction conditions is very significant.

Improvement of Electrical Insulating and Anti-Wear Properties of Composites Used in Telemetry Systems

2015 ◽  
Vol 792 ◽  
pp. 578-581
Author(s):  
A.R. Gallyamov ◽  
I.D. Ibatullin ◽  
A.Y. Murzin
Keyword(s):  
Composite Materials ◽  
Epoxide Resin ◽  
Wear Properties ◽  
Research Results ◽  
Tribotechnical Properties ◽  
Properties Of Composites

This article deals with the research results of electroinsulated and tribotechnical properties of composite materials on the basis of epoxide resin. The effect of fillers — micro-and nanopowders of various materials - on the properties of composites is examined. The use of composites in the manufacture of separators for telemetry systems is demonstrated.

Tribotechnical Properties of Nanostructured Coppernickel Coatings

2019 ◽  
pp. 61-71 ◽  
Author(s):  
Margarita A. Skotnikova ◽  
Vladimir P. Artemyev ◽  
Svetlana A. Shasherina ◽  
Olga V. Paitova ◽  
Galina V. Tsvetkova
Keyword(s):  
Tribotechnical Properties

Influence of Tin on the Tribotechnical Properties of Complex Antifriction Aluminum Alloys

2018 ◽  
Vol 39 (5) ◽  
pp. 394-399 ◽  
Author(s):  
A. E. Mironov ◽  
I. S. Gershman ◽  
E. I. Gershman
Keyword(s):  
Aluminum Alloys ◽  
Tribotechnical Properties

Influence of the range of grinding thermo-expanded graphite on physical-mechanical and tribotechnical properties of composite materials produced on its basis

2018 ◽  
Vol 5 (12) ◽  
pp. 26113-26118
Author(s):  
Elena Matygullina ◽  
Dmitrii Karavaev ◽  
Lyudmila Sirotenko ◽  
Almaz Khanov ◽  
Oleg Isaev
Keyword(s):  
Composite Materials ◽  
Expanded Graphite ◽  
Tribotechnical Properties

The Structure and Mechanical Properties of Multilayer Metal-Carbon Coatings Deposited in Pulse Plasma of Arc Discharge

2018 ◽  
Vol 781 ◽  
pp. 53-57 ◽  
Author(s):  
D.G. Piliptsou ◽  
Alexander V. Rogachev ◽  
Alexander Rudenkov ◽  
Ekaterina Kulesh ◽  
Alexander Luchnikov
Keyword(s):  
Heat Treatment ◽  
Friction Coefficient ◽  
Arc Discharge ◽  
Single Layer ◽  
Internal Stresses ◽  
Multilayer Systems ◽  
Carbon Coatings ◽  
Tribotechnical Properties ◽  
Metal Layers ◽  
Multilayer Metal

The influence of the architecture of multilayer metal-carbon coatings, the nature of individual metallic layers (Ti, Cu), heat treatment parameters on their microhardness, the level of internal stresses and tribotechnical properties are determined. It is defined that for systems based on carbon and nanosized metal layers, the friction coefficient values are lower than for single-layer carbon coatings. Heat treatment of multilayer systems in air leads to the increase in the friction coefficient, primarily Ti/a-C/Ti coatings, which is due to the formation of solid phases of TiN, TiC and TiCN, as well as oxides of TixOy acting as abrasive. The level of internal stresses of multilayer systems containing layers of copper is lower than that of single-layer carbon coatings and coatings containing layers of titanium.

Tribotechnical Properties of Nanomodifier 2

2020 ◽  
Vol 49 (10) ◽  
pp. 870-873
Author(s):  
A. Yu. Albagachiev ◽  
A. B. Tokhmetova
Keyword(s):  
Tribotechnical Properties
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