Surface Treatment Technology of Metals and Alloys

Rokosz, Krzysztof

doi:10.3390/met9111134

Cited by 6 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Electrochemical treatments, such as electropolishing [ 2 ], with high current density [ 3 ] or high voltage [ 4 ], as well as with acceleration of magnetic field [ 5 ], are used to create the passive nanolayers. On the other hand, the plasma electrolytic oxidation (PEO) processes [ 6 ] are used to fabricate the micro-porous coatings on titanium [ 7 ] and its alloys, such as Ti6Al4V [ 8 ], NiTi [ 9 ], Ti-15Mo [ 10 ] and Ti-Nb-Zr [ 11 ], most often under DC [ 12 ] and AC [ 13 ] conditions. It was also found that, in the PEO process performed in water electrolytes, a smaller increase in current value is associated with the formation of a compact oxide film on the anode surface, constituting a barrier layer.…”

Section: Introductionmentioning

confidence: 99%

Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation Processing

et al. 2020

View full text Add to dashboard Cite

Coatings enriched with zinc and copper as well as calcium or magnesium, fabricated on titanium substrate by Plasma Electrolytic Oxidation (PEO) under AC conditions (two cathodic voltages, i.e., −35 or −135 V, and anodic voltage of +400 V), were investigated. In all experiments, the electrolytes were based on concentrated orthophosphoric acid (85 wt%) and zinc, copper, calcium and/or magnesium nitrates. It was found that the introduced calcium and magnesium were in the ranges 5.0–5.4 at% and 5.6–6.5 at%, respectively, while the zinc and copper amounts were in the range of 0.3–0.6 at%. Additionally, it was noted that the metals of the block S (Ca and Mg) could be incorporated into the structure about 13 times more than metals of the transition group (Zn and Cu). The incorporated metals (from the electrolyte) into the top-layer of PEO phosphate coatings were on their first (Cu+) or second (Cu2+, Ca2+ and Mg2+) oxidation states. The crystalline phases (TiO and Ti3O) were detected only in coatings fabricated at cathodic voltage of −135 V. It has also been pointed that fabricated porous calcium–phosphate coatings enriched with biocompatible magnesium as well as with antibacterial zinc and copper are dedicated mainly to medical applications. However, their use for other applications (e.g., catalysis and photocatalysis) after additional functionalizations is not excluded.

show abstract

Section: Introductionmentioning

confidence: 99%

Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation Processing

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Nitrocarburizing, a conventional metal surface treatment technology, is traditionally applied to improve the materials' mechanical properties. 7 In the nitrocarburizing process, a compound layer will form on the metal surface because N and C are introduced. 8 The interface between the metal substrate and compound layer could provide a fast electron transmission route.…”

mentioning

confidence: 99%

Carbon Nanotubes Codoped with Nickel and Nitrogen for Electrochemical Syngas Production

Mao

Liu

Yang

et al. 2020

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

A nickel nitrocarburizing strategy is proposed to prepare efficient electrocatalysts for carbon dioxide (CO2) reduction. In the nitrocarburizing process, Ni,N-codoped carbon nanotubes could be grown from nickel substrates and provide catalytic sites and a fast electron transmission route for reducing CO2. A high performance of syngas [carbon monoxide (CO) and hydrogen (H2)] production has been realized with an industrial total current density (230 mA cm–2) and a tunable CO/H2 ratio (0.2–4.5). This shows the feasibility of the nitrocarburizing method to prepare electrocatalysts.

show abstract

Microstructure and wear behavior of arc-shaped 40CrNiMo steel after laser hardening

Li¹,

Yan²,

Li³

et al. 2023

Journal of Materials Research and Technology

View full text Add to dashboard Cite

Surface Treatment Technology of Metals and Alloys

Abstract: In recent decades, metals and new alloys with modified surface properties have experienced steady development [...]

Cited by 6 publications

References 12 publications

Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation Processing

Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation Processing

Carbon Nanotubes Codoped with Nickel and Nitrogen for Electrochemical Syngas Production

Microstructure and wear behavior of arc-shaped 40CrNiMo steel after laser hardening

Contact Info

Product

Resources

About