4.7 Article

Characteristics of multi-layer coatings synthesized on Ti6Al4V alloy by micro-arc oxidation in silver nitrate added electrolytes

Journal

SURFACE & COATINGS TECHNOLOGY
Volume 307, Issue -, Pages 308-315

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2016.09.002

Keywords

Ti6Al4V; Micro-arc oxidation; Multi-layer coating; Titania; Hydroxyapatite; Silver; Antibacterial

Funding

  1. Istanbul Technical University (ITU) through ITU-BAP [33550]
  2. European Cooperation in Science and Technology (COST) [MP1005]

Ask authors/readers for more resources

Multi-layer coatings (composed of outer hydroxyapatite and inner titania layers) have been synthesized on Ti6Al4V alloy for biomedical applications by employing micro-arc oxidation at positive and negative voltages of 400 and 80, respectively. Addition of silver nitrate (at concentrations of 0.1 g/L and 0.4 g/L) into the calcium acetate hydrate and disodium hydrogen phosphate anhydrous containing base electrolyte.provided an enhancement in bio- and antibacterial activities of the synthesized coating, while imposing precipitation of silver nano particles on the hydroxyapatite layer. It is finally concluded that addition of 0.1 g/L AgNO3 into the base electrolyte is promising for MAO process of titanium-based implants, when the structural characteristics and risk of cytotoxicity are of concern for the synthesized multi-layer coatings. (C) 2016 Elsevier B.V. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Chemistry, Physical

Tuning of eg electron occupancy of MnCo2O4 spinel for oxygen evolution reaction by partial substitution of Co Fe at octahedral sites

Krystian Lankauf, Karolina Gornicka, Patryk Blaszczak, Jakub Karczewski, Jacek Ryl, Grzegorz Cempura, Marcin Zajac, Maciej Bik, Maciej Sitarz, Piotr Jasinski, Sebastian Molin

Summary: In this study, a series of MnCo2-xFexO(4) powders were synthesized by the sol-gel method to investigate the effect of partial Fe substitution on the physicochemical and electrochemical properties of MnCo2O4 spinel. The synthesized powders were characterized using various techniques. The findings revealed that the electrocatalytic activity towards oxygen evolution reaction (OER) was enhanced when Fe was partially substituted for Co, with the highest activity observed at x = 0.5. This indicates that tuning the eg occupancy at the octahedral sites through Fe substitution can modulate the catalytic activity of OER.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2023)

Article Materials Science, Multidisciplinary

Decomposition of the Laves phase in the fusion zone of the Inconel 718/ATI 718Plus® welded joint during isothermal holding at a temperature of 649 °C

Adam Kruk, Grzegorz Cempura

Summary: The microstructural investigation on the Laves phase decomposition during annealing at 649 degrees C was conducted using analytical and high-resolution transmission electron microscopy methods. The morphology of the C14 (MgZn2) Laves particles and the spatial distribution of its decay products were analyzed using FIB-SEM tomography technique. The results revealed that the Laves phase decomposed into other phases such as delta-Ni3Nb, alpha-Cr, and secondary carbides during annealing. The 3D analysis showed the complex morphology of the Laves phase precipitation and the spatial distribution of Cr-rich phase particles.

MATERIALS CHARACTERIZATION (2023)

Article Engineering, Multidisciplinary

Microstructure and phase composition of transition zone between low alloyed steel boiler tube and an austenitic stainless steel weld overlay produced by cold metal transfer method

Magdalena Rozmus-Gornikowska, Jan Kusinki, Grzegorz Cempura, Jerzy Morgiel

Summary: The microstructure and composition of the transition zone between the 16Mo3 steel boiler tube and 310 austenitic stainless steel weld overlay produced by the Cold Metal Transfer method were studied. The transition zone was found to have a complex structure related to the changing composition. Two distinct areas were observed in the transition zone, with the area near the fusion boundary exhibiting a two-phase structure. TEM investigation revealed the presence of a martensitic-austenitic structure in this area. The width of the martensite area in the transition zone of weld overlay can be significantly reduced by using a low-energy welding method.

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING (2023)

Article Materials Science, Multidisciplinary

Oxidation of a refractory high entropy alloy (RHEA) at moderate temperatures for wear related applications

Yunus Alphan, Mertcan Kaba, Amir Motallebzadeh, Huseyin Cimenoglu

Summary: This study aimed to enhance the surface hardness and wear performance of a RHEA material, HfNbTaTiZr, by exploiting its poor oxidation resistance. It was found that exposing the material to air at different temperatures resulted in the formation of a complex oxide layer, which significantly improved the surface hardness and wear resistance of the samples.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2023)

Article Materials Science, Multidisciplinary

Evaluation of structural and electrical properties of multicomponent spinel oxide thin films deposited via spray pyrolysis technique

B. Kamecki, J. Karczewski, G. Cempura, P. Jasinski, S. Molin

Summary: This study reported the preparation of (Mn,Co,Fe,Ni,Cr)3O4 high-entropy spinel oxide thin film with a thickness of -500 nm using a facile spray pyrolysis technique. The structural and electrical properties of the film were characterized after heat treatment at temperatures ranging from 400-900°C. The as-deposited film was amorphous and crystallized at 500°C, showing a homogeneous elemental distribution and the desired Fd-3m cubic spinel structure. The electrical conductivity of the film was found to depend on the processing temperature, with the highest conductivity obtained at 700°C.

MATERIALS CHARACTERIZATION (2023)

Article Materials Science, Multidisciplinary

High-temperature Corrosion of ∼ 30 Pct Porous FeCr Stainless Steels in Air: Long-Term Evaluation Up to Breakaway

D. Koszelow, M. Makowska, A. Drewniak, G. Cempura, P. Jasinski, S. Molin

Summary: In this study, a long-term corrosion evaluation of three ferritic iron-chromium alloys with varying Cr contents was conducted at different temperatures in air. The results showed that all alloys exhibited breakaway corrosion at temperatures above 600°C, but showed minimal oxidation at 600°C even after 6000 hours. The proposed prediction model accurately estimated the lifetimes of two alloys, but showed deviation for the third alloy.

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2023)

Article Nanoscience & Nanotechnology

Synthesis, thermal evolution and magnetic investigations of SBA-15 silica functionalized with anchored iron phosphonate molecules

Andrii Fedorchuk, Magdalena Laskowska, Grzegorz Cempura, Adam Kruk, Anna Nowak, Mateusz Dulski, Malgorzata Kac, Oleksandr Pastukh, Piotr M. Zielinski, Jerzy Kubacki, Lukasz Laskowski

Summary: In this study, a novel nanocomposite material was synthesized by functionalizing the SBA-15 silica matrix with anchored iron phosphonate molecules and conducting thermal treatment. The obtained materials are of great interest for their unique structure and potential applications in catalysis, adsorption, and non-linear optics. Various characterization techniques were used to analyze the obtained materials.

NANOTECHNOLOGY (2023)

Article Multidisciplinary Sciences

In-situ formation of Ag nanoparticles in the MAO coating during the processing of cp-Ti

L. Maj, Z. Fogarassy, D. Wojtas, A. Jarzebska, F. Muhaffel, A. Sulyok, A. Goral, M. Kulczyk, H. Cimenoglu, M. Bieda

Summary: This study investigates the mechanism of silver nanoparticle formation within the micro-arc oxidation (MAO) coatings. The results show that silver nanoparticles are dispersed throughout the coating and exhibit a higher density near the micro-pores, as revealed by electron microscopy and X-ray photoelectron spectroscopy.

SCIENTIFIC REPORTS (2023)

Article Materials Science, Multidisciplinary

Swelling modification by electron beam at chalcopyrite copper indium gallium diselenium thin-film controlled optical features

S. Akyol Voss, U. Canci Matur, H. Cimenoglu, N. Baydogan

Summary: This study investigates the effect of electron beam on swelling in sol-gel derived thin film semiconductor nanolayers of chalcopyrite copper indium gallium diselenide, which exhibit optical transparency. The electron beam, emitted from a Sr-90 radioisotope with an activity of 2.86 mCi, was used to irradiate the optical transparent layers of copper indium gallium diselenide. The swelling is an important parameter for utilizing this thin film in optoelectronic layers, as it affects the safety and operating life of equipment and systems in nuclear applications.

CURRENT APPLIED PHYSICS (2023)

Article Materials Science, Multidisciplinary

Improved creep resistance of AZ91 magnesium alloy after the micro arc oxidation process

Ekin Selvi, Faiz Muhaffel, Halil Ibrahim Filiz, Ali Serdar Vanli, Murat Baydogan

Summary: This study investigated the impact of micro arc oxidation (MAO) coating on the creep resistance of AZ91 Mg alloy. The results showed that the MAO coating significantly reduced the creep rate of the alloy, decreased the stress, and provided thermal barrier properties.

MATERIALS CHEMISTRY AND PHYSICS (2023)

Article Materials Science, Characterization & Testing

Indentation creep behavior of Fe-8Ni-xZr oxide dispersion strengthened alloys

Mustafa Tekin, Faiz Muhaffel, Hasan Kotan, Murat Baydogan

Summary: This study investigates the creep behavior of two oxide dispersion strengthened alloys with Zr alloying addition through indentation creep tests at room temperature. The Fe-8Ni-xZr (x = 1 and 4 at.%, i.e., Zr-1 and Zr-4 alloys) alloys, fabricated by mechanical alloying and consolidation via equal channel angular extrusion, were used in the tests conducted under different loading rates. The results show that the Zr-4 alloy is harder but has lower creep resistance compared to the Zr-1 alloy. Both hardness and creep resistance are affected by the loading rate. Additionally, a possible creep mechanism is proposed. This study provides insights into the effect of microstructure on creep in oxide dispersion strengthened alloys at elevated temperatures.

MATERIALS TESTING (2023)

Article Materials Science, Multidisciplinary

LaFeO3 thin films on Yttria Stabilized Zirconia flexible substrate

M. Jedrusik, Ch. Turquat, P. Eymeoud, A. Merlen, M. Arab, G. Cempura, L. Cieniek, A. Kopia, Ch. Leroux

Summary: Thin films of LaFeO3 were grown on a flexible polycrystalline T-YSZ substrate using pulsed laser deposition. The structure and morphology of the films were characterized using various techniques. The films exhibited a nanostructured surface with flat ended and tip ended grains. Twins were observed in the LaFeO3 grains due to the curvature of the T-YSZ substrate. The films showed optical transitions at energies of 1.9 eV and 2.5 eV, corresponding to visible light absorption, and the average lifetime of charge carriers was determined to be 5 ns.

THIN SOLID FILMS (2023)

Article Crystallography

Annihilation and Generation of Dislocations by Irradiation by Ions and Electrons in Strontium Titanate Single Crystal

Marcin Wojtyniak, Christian Rodenbuecher, Benedykt R. Jany, Grzegorz Cempura, Adam Kruk, Franciszek Krok, Krzysztof Szot

Summary: The physical and chemical properties of oxide materials are strongly affected by defect concentration, giving rise to unique electronic, optical, and dielectric properties. SrTiO3 (STO) is a promising material for various applications due to its interesting phenomena, such as a metal-to-insulator transition induced by reduction. Dislocations, which are 1-D defects, play a significant role in its electronic properties. Therefore, we investigate the process of dislocation movement, creation, and annihilation under ion thinning and electron irradiation.

CRYSTALS (2023)

Article Materials Science, Multidisciplinary

Wear performance of composite dual-layer coated Al-12Si alloy: Effect of Al2Ce reinforcement and micro-arc oxidation

Mertcan Kaba, Sezgin Cengiz, Faiz Muhaffel, Huseyin Cimenoglu

Summary: In this study, a dual-layer coating was applied to enhance the wear resistance of Al-12Si alloy, resulting in significantly improved wear performance through the introduction of a matrix composite layer and an oxide layer.

MATERIALS CHEMISTRY AND PHYSICS (2024)

Article Materials Science, Coatings & Films

Effect of micro-arc oxidation on antimicrobial properties and biocompatibility of biomedical Ti-xFe alloys

Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang

Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Fabrication of ultra-low porosity plasma electrolytic oxidation coating on Ta-12W alloys and its formation mechanism

Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du

Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Pulsed laser cladding on IN718 alloy using pre-coated CrCoNi-TiC/SiC powders for enhancing wear resistance

Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi

Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Growth of Nb films on Cu for superconducting radio frequency cavities by direct current and high power impulse magnetron sputtering: A molecular dynamics and experimental study

M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova

Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Electrophoretic coating of magnesium oxide on microarc-oxidized titanium and characterization of in vitro antibacterial activity and biocompatibility

Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan

Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Enhancing the fretting damage resistance of suspension plasma sprayed hydroxyapatite coating with Titania addition

Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy

Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Potentiostatic preparation and in vitro characterization of functional hazenite conversion coatings on AZ31 magnesium alloy

Li-Ping Wu

Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Long-lasting anti-bacterial face masks enabled by combining anti-bacterial materials and superhydrophobic coating

Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang

Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Aluminide diffusion coatings for improving the pesting behavior of refractory metals

Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz

Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Preparation and characterization of La-doped Y3Al5O12 as a potential protective coating material against CMAS corrosion

Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai

Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Microstructural, mechanical and corrosion characterization of (C-HA)SiCnws coating on AZ31 magnesium alloy surface

Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue

Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Mechanism study of composite co-deposited Cu/Co-Mo corrosion-resistant coating on 6061 Al alloy

Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang

Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

The impact-corrosion behavior of HVAF-sprayed monolayer and hierarchical Fe-based amorphous coatings

Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang

Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Modified Ni-Al layer double hydroxides as nanoparticles for self-healing anti-corrosion composite coating

Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni

Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.

SURFACE & COATINGS TECHNOLOGY (2024)

Article Materials Science, Coatings & Films

Effects of silicon and neodymium additions on microstructures and mechanical properties of CoCrNi medium entropy alloy films

Hui-Wen Peng, Chun-Hway Hsueh

Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.

SURFACE & COATINGS TECHNOLOGY (2024)