Surface Hardening of Hard Tungsten-Carbide Alloys: A Review

Осколкова, Т. Н.; Глезер, А. М.

doi:10.3103/s0967091217120099

Cited by 7 publications

(4 citation statements)

References 18 publications

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“…40-Ti, 15-Al, 5-NH 4 Cl, and 40-Al 2 O 3 were used. Titanium-chromium plating was performed as a gas method in a closed reaction space under reduced pressure conditions (13.3 Pa) in sealed containers using titanium, chromium, and carbon tetrachloride powders [9]. The last one was introduced into a saturated medium at a saturation temperature of 1050 • C. At nitriding, known nitriding technology in dissociated ammonia (25-35%) at 540 • C for 20 h was used.…”

Section: Methods Of Researchmentioning

confidence: 99%

“…Depending on the operational requirements, the gas-phase chemical deposition method is applied to the carbide plates with mechanical fastening multilayer coatings with the participation of TiN, TiC, and Al 2 O 3 compounds [4,9,10]. The arrangement of the layers of compounds in the coating determines the advantage of a particular property.…”

Section: Introductionmentioning

confidence: 99%

“…Nitrogen in steels or carbide may appear after nitriding. The results of studies on the formation of diffuser carbide and carbon-nitride coatings on tool steels and hard alloys are reported in [9,10]. Literature sources on the formation of TiN, TiC, and Al 2 O 3 diffusive multilayer coatings on tool steels on hard alloys are unknown.…”

Section: Introductionmentioning

confidence: 99%

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Composition, Structure, and Properties of Ti, Al, Cr, N, C Multilayer Coatings on AISI W1-7 Alloyed Tool Steel

et al. 2022

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New methods of diffusion metallization of AISI W1-7 steel have been developed. The paper proposes a comparative analysis of the properties and characteristics of AISI W1-7 steel after three methods of chemical heat treatment: diffusion nitriding, nitrogen titration by physical deposition from the gas phase, and diffusion chromium plating with subsequent titanium alloys. The results are presented as a comprehensive analysis of coatings: metallographic, micro-X-ray spectral, X-ray phase, durometric, heat resistance, and wear resistance. It is established that multilayer protective coatings are formed as a result of treatments. It is shown that the coatings consist of carbide and nitride zones, intermetallic, and an Al2O3 layer outside the coating. The coatings have been found to contain barrier layers that prevent aluminum from penetrating the substrate. The maximum microhardness is typical for layers based on titanium carbide—30.3–35.5 GPa and titanium nitride—22.0–22.6 GPa, heat-resistant steels AISI W1-7 at a temperature of 900 °C in 4.2–8.5 times and wear resistance under sliding friction without lubrication up to 5.4 times compared to samples without treatment.

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Section: Methods Of Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Composition, Structure, and Properties of Ti, Al, Cr, N, C Multilayer Coatings on AISI W1-7 Alloyed Tool Steel

et al. 2022

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“…The increase of durability and reliability of hard alloys can be achieved not only by technological methods in the process of their production, but also by changing the properties of structural components of already sintered hard alloy products [1][2][3]. Processing of the materials surface with concentrated energy flows (laser, plasma, electron, ion implantation, etc.)…”

Section: Introductionmentioning

confidence: 99%

Tribomechanical Properties of the Modified Surface of Alloys of the WC-Co System

2021

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The research results of tribological characteristics of the surface hardened by electric explosion alloying of tungsten-cobalt hard alloys with carbon, titanium and aluminum are presented. The correlation of tribomechanical properties of the modified surface of alloys with changes in the structure and phase composition of the surface layer of the material is established. It is shown that the best wear characteristics are achieved during hardening of alloys by electric explosion of titanium. In this case, the coefficient of friction decreases by almost 3 times, the wear resistance estimated by the depth of the wear track increases by more than 10.0 times, and by the area of the wear track – by 53.2 times.

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Tungsten Carbides

Shabalin

2022

Ultra-High Temperature Materials IV

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Surface Hardening of Hard Tungsten-Carbide Alloys: A Review

Cited by 7 publications

References 18 publications

Composition, Structure, and Properties of Ti, Al, Cr, N, C Multilayer Coatings on AISI W1-7 Alloyed Tool Steel

Composition, Structure, and Properties of Ti, Al, Cr, N, C Multilayer Coatings on AISI W1-7 Alloyed Tool Steel

Tribomechanical Properties of the Modified Surface of Alloys of the WC-Co System

Tungsten Carbides

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