Evaluation of wear resistance of materials on a friction machine at decreasing the specific pressure on a flat sample

The wear resistance of diffusion coatings in conditions of specific pressures of 3, 7 and 10 MPa was studied. The boride coatings were prepared by means of diffusion methods using C45 steel as the substrate material. Research on the microstructure and redistribution of chemical elements on wear surface of a borided layer was carried out. It was found that the boride coatings should be used under a specific pressure of 7 MPa. It was found that the wear of friction couple coating of steel C45 under specific pressure of 3 MPa proceeds according to the oxidation wear mechanism, while under specific pressures of 7 and 10 MPa the abrasive wear prevails. The wear-induced segregation of atoms in coatings was studied using secondary mass-spectroscopy method (SIMS). Increased C, O, and B concentrations were noticed at the wear surface on depth from 50 to 2000 Å. The secondary wear-induced structure formation on the wear surface resulted in high wear resistance of diffusion borided coatings.

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A TECHNIQUE FOR MONITORING THE INTEGRITY OF THE COATING AND DEVICE FOR ITS IMPLEMENTATION

Kontrol Diagnostika ◽

10.14489/td.2020.07.pp.036-041 ◽

2020 ◽

pp. 36-41

Author(s):

A. V. Moroz ◽

A. M. Sipatdinov ◽

V. E. Filimonov

Keyword(s):

Wear Resistance ◽

Protective Coating ◽

High Resistance ◽

Control Technique ◽

Friction Machine ◽

Signal Conductor

The developed methodology for monitoring the integrity of the protective coating is designed to control dielectric and high-resistance coatings. The control technique consists in measuring the resistance of the signal conductor located between the base of the part that is dielectric insulated from each other and the protective coating. By changing the resistance of the signal conductor, the integrity of the protective coating is judged. A friction machine that implements this technique allows testing the wear resistance of a coating according to GOST 30480–97 with simultaneous monitoring of coating integrity. The results of a joint test of a friction machine and methods during testing for wear of different coatinges are also demonstrated.

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Use of Epoxy Fluoroplastic Coatings in Friction Pendulum Bearings

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.725-726.537 ◽

2015 ◽

Vol 725-726 ◽

pp. 537-542

Author(s):

Alexander Smelov ◽

Pavel Ivanochkin ◽

Alexey Tselykh

Keyword(s):

Wear Resistance ◽

Experimental Research ◽

Multilayer Coating ◽

Transfer Layer ◽

Electrospark Coating ◽

Friction Machine ◽

Friction Pendulum ◽

Friction Transfer

In this paper, we consider the possibility of using, in friction pendulum bearings, multilayer friction proof coatings based on polytetrafluoroethylene compounds modified by nanoscale spinels such as magnesium, zinc and chromium. The tribological effect of applying the coating is achieved by formation of a friction transfer layer. For better wear resistance, we applied a multilayer coating with a power frame covered using electrospark coating. We performed an experimental research of bushing samples and various coating fluoroplastic bases. The research on a friction machine “SMT-1” has shown the effectiveness of epoxy fluoroplastic composition as an anti-friction coating in comparison to other types of fluoropolymer bases.

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Application of TEM to Deformation, Wear, and Fracture of Ceramics

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100052377 ◽

1974 ◽

Vol 32 ◽

pp. 472-473

Author(s):

B. J. Hockey

Keyword(s):

Wear Resistance ◽

High Temperature ◽

Mechanical Behavior ◽

Brittle Materials ◽

High Temperature Strength ◽

Wide Range ◽

Corrosive Environments ◽

Further Development

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.

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Abrasive wear of polymer/steel gear drives

Progress in Agricultural Engineering Sciences ◽

10.1556/progress.4.2008.1 ◽

2008 ◽

Vol 4 (1) ◽

pp. 1-26

Author(s):

Gábor Kalácska

Keyword(s):

Wear Resistance ◽

Abrasive Wear ◽

Material Selection ◽

Solid Particles ◽

Soil Types ◽

General View ◽

Modern Engineering ◽

Clean Environment ◽

Engineering Polymers ◽

Plastic Gears

Research was performed on the friction, wear and efficiency of plastic gears made of modern engineering polymers and their composites both in a clean environment (adhesive sliding surfaces) and in an environment contaminated with solid particles and dust (abrasive), with no lubrication at all. The purpose is to give a general view about the results of abrasive wear tests including seven soil types as abrasive media. At the first stage of the research silicious sand was applied between the meshing gears and the wear of plastic and steel gears was evaluated and analyzed from the point of different material properties (elongation at break, hardness, yield stress, modulus of elasticity) and its combinations. The different correlations between the experienced wear and material features are also introduced. At the second stage of the project the abrasive sand was replaced with different physical soil types. The abrasive wear of gears is plotted in the function of soil types. The results highlight on the considerable role of physical soil types on abrasive wear resistance and the conclusions contain the detailed wear resistance. The results offer a new tribology database for the operation and maintenance of agricultural machines with the opportunity of a better material selection according to the dominant soil type. This can finally result longer lifetime and higher reliability of wearing plastic/steel parts.

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Comparative high-temperature wear resistance of CHS88U-VI alloy and H30N50YU5T2 satellite

Collection of Scientific Publications NUS ◽

10.15589/jnn20140407 ◽

2014 ◽

Vol 0 (4) ◽

Cited By ~ 2

Author(s):

Oleksandr M. Kostin ◽

Anastasiia Yu. Butenko ◽

Volodymyr O. Martynenko

Keyword(s):

Wear Resistance ◽

High Temperature ◽

High Temperature Wear

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Tempering and wear resistance of laser cladded MMC coating for corrugated rollers

International Congress on Applications of Lasers & Electro-Optics ◽

10.2351/1.5061206 ◽

2007 ◽

Cited By ~ 1

Author(s):

Zhaoyong Qian ◽

Minlin Zhong ◽

Wenjin Liu ◽

Dongye Zhang ◽

Ruiquan Kang

Keyword(s):

Wear Resistance

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INCREASING THE WEAR RESISTANCE OF ELEMENTS AND COMPONENTS OF FORGING AND STAMPING EQUIPMENT (FOR EXAMPLE, PERFORMING SEPARATION OPERATIONS)

STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. In the frame of the XXIII Agribusiness Forum of the South of Russia and the Exhibition «Interagromash» Volume 1 ◽

10.23947/interagro.2020.1.686-687 ◽

2020 ◽

Author(s):

K.O. Kobzev ◽

◽

S.A. Vyalov ◽

E.S Bozhko ◽

I.A. Zolotuhina ◽

...

Keyword(s):

Wear Resistance ◽

Technological Capabilities ◽

Recoil Force ◽

The Press ◽

Strength And Durability

The article describes the possibilities of increasing the durability of crank presses. The influence of the main parameters of the press on the value of the recoil force was studied. Based on the analysis of this topic, the types of expansion of technological capabilities of crank presses and their strength and durability were summarized.

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