Anticorrosion of DLC coating in acid solutions

Nagai, Tomoyasu; Hiratsuka, Masanori; Alanazi, Ali; Nakamori, Hideki; Hirakuri, Kenji

doi:10.1016/j.apsusc.2021.149373

Cited by 24 publications

(5 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The DLC coating on the SUS316 steel and Ni-Cr-Mo alloy (Hastelloy) showed that it provides superior corrosion resistance when compared to the substrate materials [ 13 ]. The authors of the work [ 14 ] proved evidence of high DLC coating stability in an acid solution and in another work [ 15 ], the authors showed the improvement of the SU 304 stainless steel’s corrosion resistance in a 3.5% NaCl solution. The presence of a DLC coating improved the corrosion resistance 10.9 times compared to the SU 304 austenitic stainless steel base material.…”

Section: Introductionmentioning

confidence: 99%

Improving of 100Cr6 Steel Corrosion and Wear Properties in Simulated Sea Water Environment by Tungsten-Doped DLC Coating

et al. 2023

View full text Add to dashboard Cite

A progressive type of tungsten-doped DLC coating was applied to a quenched and tempered 100Cr6 steel with the aim to improve the wear and corrosion properties in simulated seawater conditions and to compare the performance to conventional DLC coating. Tungsten doping caused a shift of the corrosion potential (Ecorr) to a lower negative value of −172 mV, while the conventional DLC exhibited an Ecorr of −477 mV. In dry conditions, the W-DLC coefficient of friction is slightly higher than that of the conventional DLC (0.187 for the W-DLC vs. 0.137 for the DLC), but in cases of a saltwater environment, this difference becomes almost negligible (0.105 for the W-DLC vs. 0.076 for the DLC). The conventional DLC coating also started to show marks of deterioration when exposed to a combination of wear in a corrosive environment, while the W-DLC layer still maintained its integrity.

show abstract

Section: Introductionmentioning

confidence: 99%

Improving of 100Cr6 Steel Corrosion and Wear Properties in Simulated Sea Water Environment by Tungsten-Doped DLC Coating

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Diamond-like carbon (DLC) films are a class of materials that exhibit unique properties, including high hardness [ 1 ], low friction [ 2 , 3 ], and excellent chemical resistance [ 4 ]. These properties make DLC films attractive for a wide range of applications, such as protective coatings for medical implants [ 5 , 6 , 7 ], wear-resistant coatings for mechanical components [ 8 , 9 ], and anti-reflective coatings for optical devices [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrophilic Surface Modification of Amorphous Hydrogenated Carbon Nanocomposite Films via Atmospheric Oxygen Plasma Treatment

et al. 2023

View full text Add to dashboard Cite

Herein we investigated hydrophilic surface modification of SiOx containing amorphous hydrogenated carbon nanocomposite films (DLC:SiOx) via the use of atmospheric oxygen plasma treatment. The modified films exhibited effective hydrophilic properties with complete surface wetting. More detailed water droplet contact angle (CA) measurements revealed that oxygen plasma treated DLC:SiOx films maintained good wetting properties with CA of up to 28 ± 1° after 20 days of aging in ambient air at room temperature. This treatment process also increased surface root mean square roughness from 0.27 nm to 1.26 nm. Analysis of the surface chemical states suggested that the hydrophilic behavior of DLC:SiOx treated with oxygen plasma is attributed to surface enrichment with C–O–C, SiO2, and Si–Si chemical bonds as well as significant removal of hydrophobic Si–CHx functional groups. The latter functional groups are prone to restoration and are mainly responsible for the increase in CA with aging. Possible applications of the modified DLC:SiOx nanocomposite films could include biocompatible coatings for biomedical applications, antifogging coatings for optical components, and protective coatings to prevent against corrosion and wear.

show abstract

“…Metal corrosion is endangering various industries and compared with earthquakes, tsunamis, and other natural disasters, metal corrosion is silent but equally destructive, causing substantial economic losses every year [ 1 ]. According to the statistics, the financial losses caused by metal corrosion are about six times that of natural disasters [ 2 ]. Moreover, the safety risks for facilities and equipment caused by metal corrosion may include the threat to people’s lives; therefore, the corrosion protection of metals has been a crucial problem that needs to be solved in the scientific and engineering community.…”

Section: Introductionmentioning

confidence: 99%

Self-Healing, Solvent-Free, Anti-Corrosion Coating Based on Skin-like Polyurethane/Carbon Nanotubes Composites with Real-Time Damage Monitoring

et al. 2022

View full text Add to dashboard Cite

Self-healing anti-corrosion materials are widely regarded as a promising long-term corrosion protection strategy, and this is even more significant if the damage can be monitored in real-time and consequently repaired. Inspired by the hierarchical structure of human skin, self-healing, solvent-free polyurethane/carbon nanotubes composites (SFPUHE-HTF-CNTs) with a skin-like bilayer structure were constructed. The SFPUHE-HTF-CNTs were composed of two layers, namely, a hydrophobic solvent-free polyurethane (SFPUHE-HTF) containing disulfide bonds and fluorinated polysiloxane chain segments consisting of a self-healing layer and CNTs with good electrical conductivity consisting of a corrosion protection layer, which also allowed for the real-time monitoring of damage. The results of corrosion protection experiments indicated that the SFPUHE-HTF-CNTs had a low corrosion current density (8.94 × 10−9 A·cm−2), a positive corrosion potential (−0.38 V), and a high impedance modulus (|Z| = 4.79 × 105 Ω·cm2). The impedance modulus could still reach 4.54 × 104 Ω·cm2 after self-healing, showing excellent self-healing properties for anti-corrosion protection. Synchronously, the SFPUHE-HTF-CNTs exhibited a satisfactory damage sensing performance, enabling the real-time monitoring of fractures at different sizes. This work realized the effective combination of self-healing with corrosion protection and damage detection functions through a bionic design, and revealed the green, and low-cost preparation of advanced composites, which have the advantage of scale production.

show abstract

Anticorrosion of DLC coating in acid solutions

Cited by 24 publications

References 14 publications

Improving of 100Cr6 Steel Corrosion and Wear Properties in Simulated Sea Water Environment by Tungsten-Doped DLC Coating

Improving of 100Cr6 Steel Corrosion and Wear Properties in Simulated Sea Water Environment by Tungsten-Doped DLC Coating

Hydrophilic Surface Modification of Amorphous Hydrogenated Carbon Nanocomposite Films via Atmospheric Oxygen Plasma Treatment

Self-Healing, Solvent-Free, Anti-Corrosion Coating Based on Skin-like Polyurethane/Carbon Nanotubes Composites with Real-Time Damage Monitoring

Contact Info

Product

Resources

About