Structure and Anticorrosion, Friction, and Wear Characteristics of Pure Diamond-Like Carbon (DLC), Cr-DLC, and Cr-H-DLC Films on AZ91D Mg Alloy

Cui, Xuejun; Ning, Chuangming; Shang, Lunlin; Zhang, Guang’an; Liu, Xiaoqiang

doi:10.1007/s11665-019-3854-8

Cited by 33 publications

(9 citation statements)

References 48 publications

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“…The polarization resistance was calculated according to the Stern-Geary formula (1) [33] : For the uncoated substrate, the Ecorr was -0.584 V and the icorr was 4.36 × 10 -6 A•cm -2 . Compared with the uncoated substrate, the Ecorr of the coated specimens was positively shifted to above -0.347 V and the icorr was reduced by 1 to 2 orders of magnitude.…”

Section: Corrosion Resistancementioning

confidence: 99%

Electrodeposition of Ni and Ni-Al2O3 Composite Coatings on Q345 Steels under Different Current Densities

Xie,

Li,

et al. 2024

Preprint

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The effect of current density of electrodeposition on the morphology, hardness, and corrosion resistance of the Ni coatings and Ni-Al2O3 coatings on Q345 steels were investigated. The surface of Ni coatings exhibited the cellular structure, while the surface of Ni-Al2O3 composite coatings showed the finer protrusions structure. The thickness of all coatings increased as the current density of electrodeposition increased from 1.5 A/dm2 to 3.0 A/dm2. After coating, the hardness and corrosion resistance of the Q345 steels were significantly enhanced. Furthermore, for the Ni coatings and Ni-Al2O3 coatings, the highest hardness and best anticorrosion property were obtained at 2.5 A/dm2 of electrodeposition current density. Compared with the Ni coatings, the co-deposition of Al2O3 nanoparticles improved the hardness of Ni-Al2O3 coating due to the second phase strengthen, but reduced the thickness and corrosion resistance due to more defects caused by the coelectrodeposition of the Al2O3 particles.

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Section: Corrosion Resistancementioning

confidence: 99%

Electrodeposition of Ni and Ni-Al2O3 Composite Coatings on Q345 Steels under Different Current Densities

Xie,

Li,

et al. 2024

Preprint

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“…Further analysis of the surface morphology after wear was done by SEM to analyze the wear mechanism. The volume wear rate (W r ) was used to characterize the wear resistance of the coating and is given by Equation (1) [19]:…”

Section: Characterizationmentioning

confidence: 99%

Microstructure and Tribological Properties of Fe-Based-Al2O3-B4C Composite Coatings Prepared by High-Velocity Arc Spraying

Huang

Lin

et al. 2022

Coatings

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Fe-based-Al2O3-B4C coating was prepared on the low-carbon steel substrates using high-velocity arc spraying. The effects of voltage, current, and distance on the porosity and microhardness of the coating were studied by an orthogonal test, and the optimum spraying parameters were determined. The microstructure and properties of Fe-based-Al2O3-B4C coatings prepared under optimum process parameters were characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), microhardness and friction wear tester. The results showed that the optimum process parameters were a spraying voltage of 41 V, a spraying current of 200 A, and a spraying distance of 150 mm. The porosity was 2.24 ± 0.32%, and the microhardness was 1543 ± 145 Hv0.1, which was 8 times that of the substrate. Under the same load of 4.2 N and varying sliding speeds of 500 t/min, 750 t/min, and 1000 t/min, the coefficient of friction of the coating was less than that of the low-carbon steel, and the wear rate of the coating was 65%, 70%, and 63% lower than that of the low-carbon steel, respectively. The main wear mechanism of the coating was material spalling, accompanied by slight oxidative wear and abrasive wear.

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“…Coatings based on diamond-like carbon (DLC) are also among recently-developed coatings for the protection of Mg alloys owing to their chemical inertness, low friction, and high hardness [20]. An interlayer metallic film such as Si or Cr is usually used between the substrate and DLC film for the enhancement of coating adhesion [21,22]. In this article, new coating materials for the protection of magnesium and its alloys including rare earth conversion coatings, hybrid coatings, DLC coating, and composite polymeric coatings, have been discussed and recent advancements in these fields have been reviewed.…”

Section: Abstract a R T I C L E I N F O R M A T I O Nmentioning

confidence: 99%

Recent progress in materials used towards corrosion protection of Mg and its alloys

Ghazanfari

Hasanizadeh

Eskandarinezhad

et al. 2020

jcc

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Structure and Anticorrosion, Friction, and Wear Characteristics of Pure Diamond-Like Carbon (DLC), Cr-DLC, and Cr-H-DLC Films on AZ91D Mg Alloy

Cited by 33 publications

References 48 publications

Electrodeposition of Ni and Ni-Al2O3 Composite Coatings on Q345 Steels under Different Current Densities

Electrodeposition of Ni and Ni-Al2O3 Composite Coatings on Q345 Steels under Different Current Densities

Microstructure and Tribological Properties of Fe-Based-Al2O3-B4C Composite Coatings Prepared by High-Velocity Arc Spraying

Recent progress in materials used towards corrosion protection of Mg and its alloys

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