Microstructure, mechanical and tribological properties of Mo–V–Cu–N coatings prepared by HIPIMS technique

Ding, Ji Cheng; Mei, Haijuan; Li, Qiuguo; Zhao, Zhenting; Shen, Youqu; Cheng, Long; Wang, Rui; Gong, Weiping; Wang, Qimin

doi:10.1016/j.ceramint.2021.12.285

Cited by 7 publications

(6 citation statements)

References 48 publications

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“…The lubrication oxides MoO 3 (ϕ = 8.2) and V 2 O 5 (ϕ = 10.2) had a low friction coefficient at high temperatures due to their high ionic potential. A combination of lubrication oxides (e.g., MoO 3 and V 2 O 5 ) and soft metals like Cu with low shear strength exhibited excellent tribological performance in a wide temperature range [20,21]. In addition, due to a high degree of ionization, high power impulse magnetron sputtering (HIPIMS) has been widely applied for the deposition of hard coatings [22].…”

Section: Introductionmentioning

confidence: 99%

The Additions of V and Cu on the Microstructure and Mechanical Properties of Mo-N Coatings

et al. 2022

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Due to the excellent lubricity of V2O5 and soft metals, V and Cu have been added to Mo-N based coatings to further improve the tribological properties. In this study, the Mo-V-Cu-N coatings were deposited by high power impulse magnetron sputtering (HIPIMS). The effects of V and Cu on the microstructure and mechanical properties of Mo-N coatings were investigated. With increasing V/Cu content ratio, the deposition rate decreased from 15.4 to 6.5 nm/min, and the microstructure transformed from a featureless structure into a dense columnar structure. At low Cu contents, less than 6.5 at.%, the Mo-V-Cu-N coatings exhibited a single solid solution phase of c-Mo2(V)N. When the Cu content reached 29.7 at.%, the Mo45V1Cu30N24 coating showed the lowest surface roughness of 2.0 nm, and the coating changed into a double-phase of c-Mo2(V)N and c-Cu. The adhesion strength gradually increased from 32.2 to 87.8 N with an increasing V/Cu content ratio. Due to the microstructure densification, a maximum hardness of 27.3 GPa was achieved for the Mo46V15Cu1N38 coating, which was accompanied by a high compressive residual stress.

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Section: Introductionmentioning

confidence: 99%

The Additions of V and Cu on the Microstructure and Mechanical Properties of Mo-N Coatings

et al. 2022

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“…The major phase of Mo-N was observed in the XRD patterns as a result of the relatively high Mo content (39.5~54.8 at.%) in the coatings. As a result of their comparable atomic radius, V atoms showed a tendency to partially substitute for Mo atoms in the Mo-N lattice, thereby facilitating the formation of a solid solution phase of Mo-V-N [ 7 ]. A similar solid solution phase of FCC Mo-V-N was also found in the Mo-V-N [ 10 ] and V 1-x Mo x N coatings [ 33 ].…”

Section: Resultsmentioning

confidence: 99%

“…Generally, the advantage of magnetron sputtering is that the surface is very smooth, without any microparticles [10,27]. These micropartic mainly introduced through the deposition of CrN interlayer using arc ion platin [7]. During the deposition process, the arc spots generated by arc discharge eva the local area of Cr target with a high temperature, and some large metal drop towards the substrate surface before forming some large microparticles, showing Figure 3 shows the surface morphologies of the MoVCuN coatings at various V/Mo atomic ratios.…”

Section: Microstructurementioning

confidence: 99%

“…Generally, the advantage of magnetron sputtering is that the coating surface is very smooth, without any microparticles [10,27]. These microparticles were mainly introduced through the deposition of CrN interlayer using arc ion plating (AIP) [7].…”

Section: Microstructurementioning

confidence: 99%

“…As a promising self-lubricating coating, Mo-Cu-N coatings have received extensive research in recent years [ 1 , 2 , 3 , 4 ]. Because of the formation of lubricating oxides of MoO 3 and CuMoO 4 (MoO 3 + CuO→CuMoO 4 ), Mo-Cu-N coatings demonstrated exceptional tribological properties, including a low coefficient of friction and high resistance to wear, particularly at room temperature [ 5 , 6 , 7 ]. However, the wear rate of the Mo-N coatings was comparatively high at 500 °C as a result of severe oxidation at high temperatures; this restricted the application of self-lubricating coatings at high temperatures [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

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Effect of V/Mo Atomic Ratio on the Microstructure and Mechanical Properties of MoVCuN Coatings

Mei,

Lin,

et al. 2023

Materials

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To improve the gas ionization ratio, the Mo-V-Cu-N coatings were deposited by pulsed dc magnetron sputtering with assistance from an anode layer ion source, and the influence of the V/Mo atomic ratio was explored with regard to the microstructure and mechanical properties of the coatings. The findings of this study indicated that the MoVCuN coatings exhibited a solid solution phase of FCC B1-MoVN with a prominent (220) preferred orientation, and the deposition rate was found to decrease from 4.7 to 1.8 nm/min when the V/Mo atomic ratio increased. The average surface roughness of the MoVCuN coatings gradually decreased, and the lowest surface roughness of 6.9 nm was achieved at a V/Mo atomic ratio of 0.31. Due to the enhanced ion bombardment effect, the coatings changed from a coarse columnar to a dense columnar crystal structure, and promoted grain refinement at higher V/Mo atomic ratios, contributing to a gradual improvement in the compressive residual stress, hardness and adhesion strength of the coatings.

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The effect of trace solute Au atoms on the phase structure, mechanical and self-lubricating properties of MoSi2 films

Ren

Song

Kimura

et al. 2023

Ceramics International

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Microstructure, mechanical and tribological properties of Mo–V–Cu–N coatings prepared by HIPIMS technique

Cited by 7 publications

References 48 publications

The Additions of V and Cu on the Microstructure and Mechanical Properties of Mo-N Coatings

The Additions of V and Cu on the Microstructure and Mechanical Properties of Mo-N Coatings

Effect of V/Mo Atomic Ratio on the Microstructure and Mechanical Properties of MoVCuN Coatings

The effect of trace solute Au atoms on the phase structure, mechanical and self-lubricating properties of MoSi2 films

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