Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 960, P. 171052 - 171052
Published: June 20, 2023
Language: Английский
Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 27, P. 3595 - 3609
Published: Oct. 19, 2023
Plasma electrolytic oxidation (PEO) was carried out on SLM-produced AlSi10Mg alloy using various corrosion inhibitor additives. The study investigated the effects of these additives microstructural evolution, phase composition, and behavior by comparing functionalized coating to a standard base silicate PEO one. results revealed that, in most cases, significantly altered coatings' thickness, density, adherence, leading improved resistance due an enhanced barrier effect over electrolyte penetration. Long-term immersion electrochemical impedance spectroscopy (EIS) tests proved additives’ capability, as they all were able enhance stability.
Language: Английский
Citations
33
Journal of Magnesium and Alloys, Journal Year: 2023, Volume and Issue: 11(12), P. 4562 - 4574
Published: Jan. 25, 2023
Smart micro-arc oxidation (MAO)/epoxy resin (EP) composite coatings were formed on AZ31 magnesium (Mg) alloy. Mesoporous silica nanocontainers (MSN) encapsulated with sodium benzoate (SB) corrosion inhibitors strategically incorporated in the MAO micropores and top EP layer. The influence of strategic positioning protective performance coating was investigated. experimental results analysis indicated that superior resistance hybrid is ascribed to protection mechanisms nanocontainers. This involves two phenomena: (1) presence decreased distance between [email protected] substrate, demonstrating a low admittance value (∼ 5.18 × 10−8 Ω−1), thus exhibiting significant inhibition self-healing function; (2) addition layer densified via sealing inherent defects, hence maintained higher even after 90 days immersion (1.13 1010 Ω cm2). However, possibility located away from substrate transport reduced, reducing its effective utilization rate. work demonstrates importance for enhanced resistance, thereby providing novel perspective design smart through regulating distribution coatings.
Language: Английский
Citations
32
Materials, Journal Year: 2023, Volume and Issue: 16(6), P. 2215 - 2215
Published: March 9, 2023
The protective coating with a self-organized microtubular structure was formed using plasma electrolytic oxidation (PEO) on AlMg3 aluminum alloy in the tartrate-fluoride electrolyte. This layer further modified corrosion inhibitors of azole group (1,2,4-triazole, benzotriazole) and polymer material (polyvinilidene fluoride, PVDF). X-ray diffraction analysis scanning electron microscopy energy dispersive spectroscopy were used to study morphology composition obtained oxide coatings. presence inhibitor PEO-layer confirmed micro-Raman photoelectron spectroscopy. level protection coatings as well effect loaded anticorrosion efficiency evaluated electrochemical impedance (EIS) localized techniques (SVET/SIET). impregnation significantly improves characteristics material. Impregnation base 1,2,4-triazole during 24 h results 36 times increase modulus measured at lowest frequency (|Z|f=0.1Hz). Additional sealing impregnated stability treated On data, optimal way inhibitor- polymer-containing formation surface treatment suggested. best barrier properties established for hybrid by immersion PEO-coated sample solution following spraying PVDF solution. value |Z|f=0.1Hz this increased more than two orders magnitude comparison PEO-layer. three-stage mechanism inhibition smart inhibitor-containing established.
Language: Английский
Citations
32
Journal of Magnesium and Alloys, Journal Year: 2023, Volume and Issue: 11(5), P. 1485 - 1504
Published: May 1, 2023
Biodegradable metals such as magnesium (Mg) and its alloys have attracted extensive attention in biomedical research due to their excellent mechanical properties biodegradability. However, traditional casting, extrusion, commercial processing limitations manufacturing components with a complex shape/structure, these processes may produce defects cavities gas pores which can degrade the usefulness of products. Compared conventional techniques, additive (AM) be used precisely control geometry workpieces made different Mg-based materials multiple geometric scales desirable medical products for orthopedics, dentistry, other fields. detailed thorough understanding raw materials, processes, properties, applications is required foster production by AM. This review summarizes recent advances important issues pertaining AM discusses future development application trends.
Language: Английский
Citations
31
Journal of Magnesium and Alloys, Journal Year: 2023, Volume and Issue: 11(3), P. 763 - 775
Published: March 1, 2023
Magnesium is generally known to degrade in aqueous environments by an electrochemical reaction. The corrosion products of magnesium include hydrogen gas, Mg2+, and Mg(OH)2. Here, we summarize the published literature describing characteristics magnesium, antitumor properties magnesium-associated products, aiming induce therapeutic alloys solid tumors. potential enormous. Hydrogen gas exhibits antioxidant anti-inflammatory properties, which amount anti-tumor characteristics. Mg(OH)2, creates a localized alkaline microenvironment, represents second approach for therapy with metal. Upregulated concentrations Mg2+ ions local tumor microenvironment remodelling are considered third therapy. Therefore, speculate about different physical forms that could create upon interventional therapy, technique precisely places implants like particles stents. Finally, present our viewpoints on use diverse therapies inhibit progression.
Language: Английский
Citations
28
Corrosion Science, Journal Year: 2023, Volume and Issue: 219, P. 111218 - 111218
Published: April 25, 2023
Language: Английский
Citations
25
Microbiological Research, Journal Year: 2024, Volume and Issue: 282, P. 127656 - 127656
Published: Feb. 28, 2024
Language: Английский
Citations
14
Materials Today Communications, Journal Year: 2024, Volume and Issue: 38, P. 108263 - 108263
Published: Feb. 1, 2024
Language: Английский
Citations
12
Heliyon, Journal Year: 2024, Volume and Issue: 10(4), P. e24348 - e24348
Published: Jan. 11, 2024
Magnesium and its alloys are considered excellent materials for biodegradable implants because of their good biocompatibility biodegradability as well mechanical properties. However, the rapid degradation rate severely limits clinical applications. Plasma electrolytic oxidation (PEO), also known micro-arc (MAO), is an effective surface modification technique. there many pores cracks on coating under conventional PEO process. The corrosive products tend to penetrate deeply into substrate, reducing corrosion resistance biocompatibility, which makes PEO-coated Mg difficult meet long-term needs in vivo implants. Hence, it necessary modify coating. This review discusses formation mechanism influential parameters coatings Mg. followed by a latest research pretreatment typical amelioration past 5 years, including calcium phosphate (Ca–P) coating, layered double hydroxide (LDH)-PEO ZrO2 incorporated-PEO antibacterial ingredients-PEO drug-PEO polymer-PEO composite fluorination (PEF) self-healing Meanwhile, improvements morphology, resistance, wear abilities, drug loading abilities preparation methods modified discussed well. Finally, challenges prospects detail purpose promoting application alloys.
Language: Английский
Citations
11
Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: 13(2), P. 760 - 776
Published: Feb. 22, 2024
In this study, laser-assisted plasma electrolytic oxidation (Laser/PEO) coating was prepared on AZ31B magnesium alloy for corrosion protection, due to insufficient protection caused by the inherent defects, cracks and poor quality of PEO coatings. The discharge evolution, morphological characteristics, elemental composition during growth were characterized high-speed camera, SEM, EDX, XRD XPS, respectively. Meanwhile, Mott Schottky (M-S) curves, potentiodynamic polarization (PDP) curves electrochemical impedance spectroscopy (EIS) tests oxygen vacancy defects resistance results demonstrated that irradiation not only induced anode surface, but also limited size in post-processing stage, which significantly increased proportion corrosion-resistant phase Mg2SiO4 (the from 23.70% 39.22%), thickness density coating, obviously reduced microcracks coating. As a result, Laser/PEO (9.29(±0.76)×10−7 A·cm−2) further enhanced comparation with (3.06(±0.19)×10−6 A·cm−2).
Language: Английский
Citations
11