Effect of Cu doping on the microstructure and mechanical properties of AlTiVN-Cu nanocomposite coatings

Mei, Haijuan; Geng, Duyan; Wang, Rui; Cheng, Long; Ding, Ji Cheng; Luo, Quanshun; Zhang, Teng Fei; Wang, Qimin

doi:10.1016/j.surfcoat.2020.126490

Cited by 20 publications

(10 citation statements)

References 46 publications

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“…With an increasing V/Cu ratio, the deposition rate sharply decreased from 15.4 to 6.5 nm/min. A similar result was also found in the AlTiVN-Cu coatings, in which the deposition rate increased linearly with the increasing Cu/V ratio [24]. When compared to Mo and V metals, Cu has a much higher sputtering yield [25], resulting in an increase in the deposition rate.…”

Section: Chemical Composition and Microstructuresupporting

confidence: 79%

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: Chemical Composition and Microstructuresupporting

confidence: 79%

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

et al. 2022

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“…At a low V/Mo atomic ratio of 0.08, the adhesive chipping occurred at the initial stage of the scratch test, and numerous adhesive fragments were dispersed along the track edge, indicating a low adhesion strength, which could be caused by the low H 3 /E* 2 ratio of 0.04. Similar results were also found for the MoVCuN [12] and AlTiVCuN [48] coatings with low H 3 /E* 2 ratios. However, when the V/Mo atomic ratio increased to above 0.16, smooth scratch morphologies can be observed in the initial stages, and adhesive chipping started in the middle or later stages, implying a significant improvement in the adhesion strength of the coatings.…”

Section: Mechanical Propertiessupporting

confidence: 86%

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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“…Then, the Al-Ti-V-Cu-N coatings were prepared by HIPIMS in a mixed atmosphere of Ar and N2 at a total gas pressure of 0.6 Pa. The target power was set at 1.5 kW with a duty cycle of 2%, additional details regarding the deposition parameter were reported in a previous study [19]. Three vertical substrate distances (D = 4, 10, and 16 cm) were used to prepare the coatings with various chemical compositions, which corresponded to the Al21Ti12V17Cu3N47, Al26Ti14V9Cu8N43, and Al26Ti14V3Cu22N35 coatings, as listed in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…However, few studies have focused on the outward diffusion and oxidation of Cu metal at moderate temperatures, and its relation to the tribological behavior of hard coatings. In previous work [19], it was shown that the addition of Cu significantly affected the microstructure and mechanical properties of Al-Ti-V-N coatings, but the high-temperature oxidation behavior and tribological properties should be further investigated. Thus, the aim of this study was to investigate the influence of V and Cu codoping on the tribological properties and oxidation behavior of AlTiN coatings.…”

Section: Introductionmentioning

confidence: 99%

Effects of V and Cu codoping on the tribological properties and oxidation behavior of AlTiN coatings

Mei

Ding

Yan

et al. 2022

Ceramics International

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Effect of Cu doping on the microstructure and mechanical properties of AlTiVN-Cu nanocomposite coatings

Cited by 20 publications

References 46 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

Effects of V and Cu codoping on the tribological properties and oxidation behavior of AlTiN coatings

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