Relationship between the Adhesive Properties of Vacuum Ion-Plasma TiAlN Coatings and Wear Resistance in Friction

Comparative studies of the effect of discrete surface hardening by standard ion-plasma technology and discrete oxidation technology on wear resistance have been carried out. Metallographic studies have shown that discrete oxidation has a polycrystalline structure. It was found that the technology of discrete oxidation makes it possible to increase the hardness by 31% in relation to the uncoated material, and the wear resistance of the cutting tool with oxidation is 1.5-3 times higher than that of the tool hardened by the standard ion-plasma technology.

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Electron-Ion-Plasma Doping of Aluminum Surface with Copper and Titanium - A Comparative Analysis of the Formed Structure and Properties

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.781.76 ◽

2018 ◽

Vol 781 ◽

pp. 76-81

Author(s):

Yurii Ivanov ◽

Anatolii A. Klopotov ◽

Aleksandr I. Potekaev ◽

Olga V. Krysina ◽

Pavel Moskvin ◽

...

Keyword(s):

Wear Resistance ◽

Copper Film ◽

Aluminum Surface ◽

Al Alloy ◽

Pulsed Electron Beam ◽

Ion Plasma ◽

Plasma Doping ◽

Modification Method ◽

Film Substrate ◽

Formed Structure

Deposition of a titanium or a copper film onto the surface of commercially pure A7 aluminum and irradiation of the “film/substrate” system with an intense pulsed electron beam are carried out in a single vacuum cycle. Formation of a surface doped layer with a thickness of (20-30) μm is revealed. It is shown that the modified layer has a multiphase structure of a cellular rapid solidification of the submicron-nanosized range. Irradiation parameters are determined. It is established that the developed modification method allows forming a surface doped layer with the microhardness more than 4 times (Ti-Al alloy) or more than 3 times (Cu-Al alloy) greater than the microhardness of A7 aluminum; the wear resistance of the surface alloy Ti-Al exceeds the wear resistance of the initial aluminum in ≈2.4 times; doping of aluminum with copper is accompanied with an increase in the wear resistance of the material in ≈1.5 times.

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Improving Tool Wear Resistance in Steel Cutting by Textured Surface and its Mechanism

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.565.424 ◽

2012 ◽

Vol 565 ◽

pp. 424-429 ◽

Cited By ~ 2

Author(s):

Tatsuya Sugihara ◽

Toshiyuki Enomoto ◽

Satoshi Yukinaga

Keyword(s):

Wear Resistance ◽

Aluminum Alloys ◽

Surface Engineering ◽

Cutting Tool ◽

Cutting Tools ◽

Textured Surface ◽

Textured Surfaces ◽

Adhesive Properties ◽

Chip Adhesion ◽

Cutting Processes

In the cutting processes, improvements of anti-adhesive properties and wear resistance of cutting tools are strongly required for increasing a cutting tool life. In order to meet these requirements, we adopted surface engineering approach, namely, a functionalization of tool surfaces by textures. In our previous researches, we have developed two types of cutting tool with textured surface, namely, cutting tool with nano/micro textured surface and cutting tool with micro stripe textured surface, in the hopes of improving anti-adhesive properties in cutting of aluminum alloys. As a result, we have clarified that the developed tools significantly decrease chip adhesion on the tool surface by a series of face milling experiments for aluminum alloys. In this paper, the previously developed tools with textured surfaces were applied to the cutting of steel material (S53C) and the wear resistances of the textured surfaces were evaluated. As a result, it was found that the micro stripe texture improves the wear resistance significantly. Moreover, the mechanism of improving wear resistance by the textured surface was also discussed.

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Multi-component nitrated ion-plasma Ni-Cr coating

Journal of Physics and Electronics ◽

10.15421/332108 ◽

2021 ◽

Vol 29 (1) ◽

pp. 61-64

Author(s):

V. Nadtoka ◽

M. Kraiev ◽

A. Borisenko ◽

V. Kraieva

Keyword(s):

Wear Resistance ◽

Nitrogen Content ◽

Uniform Distribution ◽

Vacuum Chamber ◽

Plasma Deposition ◽

Nitrogen Pressure ◽

Nitrogen Gas ◽

Ion Plasma ◽

Gas Atmosphere ◽

Cr Coating

Method for ion-plasma deposition is applied for covering of heat-resistant Ni-Cr alloy XH78T. Coating deposition is performed under nitrogen gas atmosphere at the pressure from 3×10-5 to 1×10-2 Torr. The nitrogen content in the coating is reached up to 2,7 %. Nitrated coatings with a thickness of 184-222 μm is obtained without embrittlement and with a uniform distribution of microhardness. The effect of the nitrogen pressure in a vacuum chamber on the structure of the coatings, which changes from homogeneous to columnar with conical crystallites, is presented. Nitration increases microhardness of the coatings from 3669 to 7575 HV, the wear resistance of the coatings increases by 6-8 times. The received coatings can be used to increase the durability of metallurgical equipment parts.

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Increasing Tribo Unit Wear Resistance with the Ion-Plasma Coating

Tribology in Industry ◽

10.24874/ti.2019.41.01.05 ◽

2019 ◽

Vol 41 (1) ◽

pp. 43-49 ◽

Cited By ~ 1

Author(s):

Ye. Ventsel ◽

D. Glushkova ◽

O. Orel ◽

O. Shchukin ◽

N. Saienko

Keyword(s):

Wear Resistance ◽

Plasma Coating ◽

Ion Plasma ◽

Unit Wear

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Study of the wear resistance of ion-plasma coatings based on titanium and aluminum and obtained by magnetron sputtering

Journal of Physics Conference Series ◽

10.1088/1742-6596/857/1/012016 ◽

2017 ◽

Vol 857 ◽

pp. 012016

Author(s):

G V Kachalin ◽

A F Mednikov ◽

A B Tkhabisimov ◽

S V Sidorov

Keyword(s):

Wear Resistance ◽

Magnetron Sputtering ◽

Ion Plasma ◽

Plasma Coatings

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Aluminum surface modification by electron-ion-plasma methods

MATEC Web of Conferences ◽

10.1051/matecconf/201814303007 ◽

2018 ◽

Vol 143 ◽

pp. 03007 ◽

Cited By ~ 1

Author(s):

Olga Krysina ◽

Elizaveta Petrikova ◽

Vladimir Shugurov ◽

Pavel Moskvin ◽

Yurii Ivanov

Keyword(s):

Wear Resistance ◽

Electron Beam ◽

Plasma Treatment ◽

Pure Aluminum ◽

Structural Phase ◽

Vacuum Arc ◽

Aluminum Surface ◽

Titanium Coating ◽

Commercially Pure ◽

Ion Plasma

The paper focuses on detection and structural-phase justification of the modes of combined electron-ion plasma treatment of commercially pure A7 grade aluminum carried out in a single vacuum cycle and enabling to enhance mechanical (microhardness) and tribological (wear resistance) properties of the material. Commercially pure A7 grade aluminum underwent combined surface treatment, including deposition of titanium coating by means of vacuum-arc technique and further mixing of the coating/substrate system by intense pulsed electron beam. The varied parameters were energy density of the electron beam (10, 15, 20) J/cm2 and the number of impact pulses (3-100); the thickness of titanium coating was 0.5 μm. Electron-ion plasma treatment of aluminum was carried out in a single vacuum cycle. Optical and scanning electron microscope investigations, measuring of microhardness and tribological tests allowed defining the modes when hardness and wear resistance of the modified surface layer increases manifold in comparison to the initial properties of commercially pure aluminum.

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