Surface and tribological characterization of anodic aluminum oxide coating containing diamond-like carbon flakes

Rawian, Nur Adilah Mohd; Akasaka, Hiroki; Liza, Shahira; Fukuda, Kanao; Zulkifli, Nur Aszreen; Tahir, Noor Ayuma Mat; Yaakob, Yazid

doi:10.1016/j.diamond.2022.109674

Cited by 7 publications

(2 citation statements)

References 76 publications

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“…Recently, an attempt to use diamond-like carbon (DLC) with anodic alumina surface has been made by Rawian et al [7]. In their work, copper particles were coated by DLC using the pulse plasma chemical deposition method, followed by heat treatment at different temperatures to minimize oxidation.…”

Section: Introductionmentioning

confidence: 99%

Tribological Synergism of Anodic Aluminum Oxide Surface Containing Micro-Holes and Nanopores under Lubricated Reciprocation

Cho

2023

Lubricants

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Micro-drilled aluminum surfaces containing micro-holes were anodized to produce nanopores over the machined and lapped surfaces. The anodized nanopores had an approximate diameter of 30–40 nm and a depth distribution of 20–30 μm from the surface. The diameter and depth of the machined micro-holes were 125 μm and 300 μm, respectively. Anodization itself did not change the surface roughness because the nanopores were very small. Ball-on-disk reciprocating tests were performed under lubricated conditions for 2 h using a frequency of 2 Hz, a load of 2 N, and a travel distance of 5 mm. The results showed that both the micro-drilled and anodized surfaces greatly reduced the coefficient of friction compared with the lapped bare surface; however, the coefficient of friction of the hole-textured specimen was not maintained till the end. Contrary to expectations, the lubricant retention capability of the textured structure declined because of hole failure that occurred during oscillation. This gradually increased friction until the end of the reciprocating test. When the micro-drilled surface was anodized, the coefficient of friction decreased again, implying that non-anodized micro-holes alone were ineffective for reducing friction. The surface hardness of Al increased owing to anodization, and thus the micro-holes remained intact. Therefore, it is concluded in this study that a prerequisite for friction reduction in Al is to increase the hardness to minimize the failure of micro-holes, which can be achieved by anodization. The synergistic lubricant retention capability can be maintained by the presence of both nanopores and micro-holes.

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Section: Introductionmentioning

confidence: 99%

Tribological Synergism of Anodic Aluminum Oxide Surface Containing Micro-Holes and Nanopores under Lubricated Reciprocation

Cho

2023

Lubricants

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“…The obtained coatings have good wear resistance, corrosion resistance, and oxidation resistance. For example, Rawian et al [28] introduced diamond-like carbon on the surface of aluminum alloy to improve the hardness and wear resistance of the film. Gao et al [29] proposed a facile strategy to fabricate a micro/nano-structured bionic superhydrophobic surface with enhanced anti-corrosion performance.…”

Section: Introductionmentioning

confidence: 99%

Achieving Superior Corrosion Resistance of TiB2 Reinforced Al-Zn-Mg-Cu Composites via Optimizing Particle Distribution and Anodic Oxidation Time

Li,

Gao,

Liu

et al. 2023

Coatings

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In this study, the effects of particle distribution and anodizing time on the microstructure and corrosion resistance of the TiB2 particle-reinforced Al-Zn-Mg-Cu composite were investigated. Relationships between TiB2 particle distribution, anodizing time, coating growth rule, and corrosion resistance were characterized and discussed using an optical microscope, a scanning electron microscope, an electrochemical test, and a salt spray test. Dispersion of TiB2 particles by powder metallurgy improved the corrosion resistance of the anodized coating on composites. Compared with the matrix, the corrosion potential (Ecorr) of the anodized coating shifted to the positive direction, and the corrosion current density (icorr) decreased. Meanwhile, the icorr of the coating decreased initially and then increased with the extension of the anodization time. The corrosion resistance of the coating was optimal at an anodization time of 20 min. The corrosion resistance of the composite was determined by both the porosity and thickness of the coating. Additionally, all samples treated by potassium dichromate sealing had no corrosion points after a 336-h salt spray test, demonstrating an excellent corrosion resistance suitable for harsh environmental applications in industry.

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Surface and tribology characterization of diamond-like carbon flakes reinforced oxide film by pulse anodizing

Zulkifli,

Liza,

Akasaka

et al. 2023

Ceramics International

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Surface and tribological characterization of anodic aluminum oxide coating containing diamond-like carbon flakes

Cited by 7 publications

References 76 publications

Tribological Synergism of Anodic Aluminum Oxide Surface Containing Micro-Holes and Nanopores under Lubricated Reciprocation

Tribological Synergism of Anodic Aluminum Oxide Surface Containing Micro-Holes and Nanopores under Lubricated Reciprocation

Achieving Superior Corrosion Resistance of TiB2 Reinforced Al-Zn-Mg-Cu Composites via Optimizing Particle Distribution and Anodic Oxidation Time

Surface and tribology characterization of diamond-like carbon flakes reinforced oxide film by pulse anodizing

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