Wear resistance of arc ion-plated chromium nitride coatings

Wear resistance of arc ion-plated chromium nitride films has been studied. It has been found that texture and phases composing the films depend much on bias voltage and nitrogen gas pressure at the deposition. A phase diagram was constructed as a function of these two parameters, which indicated that three categories exist: CrN single, CrN and Cr2N dual, and CrN and Cr dual phased regions, respectively. Results of Falex No. 2 test showed that the wear resistance of CrN single phased films is superior to others, especially when (220) preferred orientation is developed. Since hardness and surface morphology do not differ much between these films, a high toughness of CrN single phased film is considered to make a difference by suppressing abrasion wear.

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Microstructural and Mechanical Properties Changes of Silicon Nitride Based Ceramic Using Post-Sintering Heat Treatment

Materials Science Forum ◽

10.4028/www.scientific.net/msf.727-728.1085 ◽

2012 ◽

Vol 727-728 ◽

pp. 1085-1091

Author(s):

José Vitor C. Souza ◽

O.M.M. Silva ◽

E.A. Raymundo ◽

João Paulo Barros Machado

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Fracture Toughness ◽

Grain Size ◽

Wear Resistance ◽

High Hardness ◽

Gas Pressure ◽

Low Density ◽

Nitrogen Gas ◽

Structural Applications

Si3N4based ceramics are widely researched because of their low density, high hardness, toughness and wear resistance. Post-sintering heat treatments can enhance their properties. Thus, the objective of the present paper was the development of a Si3N4based ceramic, suitable for structural applications, by sintering in nitrogen gas pressure, using AlN, Al2O3, and Y2O3as additives and post-sintering heat treatment. The green bodies were fabricated by uniaxial pressing at 80 MPa with subsequent isostatic pressing at 300 MPa. The samples were sintered at 1900°C for 1 h under N2gas pressure of 0.1 MPa. Post-sintering heat treatment was performed at 1500°C for 48 h under N2gas pressure of 1.0 MPa. From the results, it was observed that after post-sintering heat treatment there was a reduction of α-SiAlON phase and increase of β-Si3N4phase, with consequent changing in grain size, decrease of fracture toughness and increase of the Vickers hardness.

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Deposition of chromium nitride coatings using vacuum arc plasma in increased negative substrate bias voltage

Vacuum ◽

10.1016/j.vacuum.2015.04.008 ◽

2015 ◽

Vol 117 ◽

pp. 27-34 ◽

Cited By ~ 24

Author(s):

V.D. Ovcharenko ◽

A.S. Kuprin ◽

G.N. Tolmachova ◽

I.V. Kolodiy ◽

A. Gilewicz ◽

...

Keyword(s):

Bias Voltage ◽

Chromium Nitride ◽

Vacuum Arc ◽

Substrate Bias ◽

Arc Plasma ◽

Substrate Bias Voltage ◽

Nitride Coatings ◽

Negative Substrate Bias

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COMPAX

Alloy Digest ◽

10.31399/asm.ad.ts0488 ◽

1988 ◽

Vol 37 (3) ◽

Keyword(s):

Wear Resistance ◽

Compressive Strength ◽

Physical Properties ◽

Surface Treatment ◽

Tool Steel ◽

Dimensional Stability ◽

Heat Treating ◽

High Toughness ◽

Steel Corporation

Abstract COMPAX is a chromium-molybdenum shock-resistant tool steel characterized by high toughness, good wear resistance, good through hardening and good dimensional stability during hardening. This datasheet provides information on composition, physical properties, hardness, elasticity, and compressive strength. It also includes information on heat treating, machining, joining, and surface treatment. Filing Code: TS-488. Producer or source: Uddeholm Steel Corporation.

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TLS S1

Alloy Digest ◽

10.31399/asm.ad.ts0655 ◽

2007 ◽

Vol 56 (9) ◽

Keyword(s):

Fracture Toughness ◽

Wear Resistance ◽

Physical Properties ◽

Carbon Content ◽

High Strength ◽

Heat Treating ◽

High Toughness

Abstract The carbon content in TLS S1, about 0.5%, produces a combination of high strength and high toughness with medium wear resistance. Chisels and rivet sets are typical applications. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on wear resistance as well as heat treating and machining. Filing Code: TS-655. Producer or source: Timken Latrobe Steel.

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Effect of nitrogen gas pressure and ionization current on deposition of aluminum nitride film by reactive ion plating.

Journal of the Metal Finishing Society of Japan ◽

10.4139/sfj1950.38.228 ◽

1987 ◽

Vol 38 (6) ◽

pp. 228-233

Author(s):

Saburou KUWANO ◽

Masahiro SUGIYAMA ◽

Yoshio SHIBUYA ◽

Terunori OOTAKE ◽

Takeo OKI

Keyword(s):

Aluminum Nitride ◽

Gas Pressure ◽

Nitride Film ◽

Nitrogen Gas ◽

Ion Plating ◽

Ionization Current

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Effect of Bias Voltage on Microstructure and Properties of Tantalum Nitride Coatings Deposited by RF Magnetron Sputtering

Coatings ◽

10.3390/coatings11080911 ◽

2021 ◽

Vol 11 (8) ◽

pp. 911

Author(s):

Wei Dai ◽

Yunzhan Shi

Keyword(s):

Magnetron Sputtering ◽

Bias Voltage ◽

Rf Magnetron Sputtering ◽

Amorphous Structure ◽

Tribological Performance ◽

Tantalum Nitride ◽

Growth Morphology ◽

Low Friction ◽

Nitride Coatings ◽

Overall Performance

TaNx coatings were deposited by RF magnetron sputtering with different bias voltages. The growth morphology, crystalline structure, chemical bond structure, hardness and elastic modulus, adhesion strength and tribological performance of the coatings were studied as a function of the bias voltage. The results showed that an increasing bias voltage refines the coating grains and facilitates structure densification. Simultaneously, the structure of the TaNx coatings transfers from a composite structure consisting of TaN and Ta2N crystals, through a single composite mainly composed of the Ta2N crystal, to an amorphous structure as the bias voltage increases from low to high, indicating that the phase composition of the TaNx coatings can be varied by the bias voltage. The coating composed of Ta2N crystal showed a good overall performance including enhanced hardness, enhanced adhesive strength, and good tribological performance with enhanced wear resistance and a low friction coefficient of 0.18.

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