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Journal articles on the topic 'Cobalt-nickel alloy'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Margida, Anthony J., Keith D. Weiss, and J. David Carlson. "MAGNETORHEOLOGICAL MATERIALS BASED ON IRON ALLOY PARTICLES." International Journal of Modern Physics B 10, no. 23n24 (1996): 3335–41. http://dx.doi.org/10.1142/s0217979296001781.

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A magnetorheological material containing iron alloy particles demonstrates magnetorheological strength dependent upon the elements of the alloy and relative concentration of the alloy elements. Selected iron/cobalt alloys demonstrate improved yield strength over traditional carbonyl iron based MR materials when the iron-cobalt alloy has an iron-cobalt ratio ranging from about 30:70 to 95:5. The iron-nickel alloys which have an iron-nickel ratio ranging from about 90:10 to 99:1 maintains superior strength over iron-nickel alloys outside that range.

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2

Mirkovic, Nemanja. "Mechanical properties of metal-ceramic systems from nickel-chromium and cobalt-chromium alloys." Vojnosanitetski pregled 64, no. 4 (2007): 241–45. http://dx.doi.org/10.2298/vsp0704241m.

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Background/Aim. Metal-ceramic bond strength and alloys' elastic modulus clearly determine the potential of alloy application, because the ceramic integrity during mastication depends on these two characteristics. The aim of this study was to evaluate metal-ceramic bond strength and elastic modulus of cobalt-chromium alloys in making porcelainfused- to-metal restorations, regarding the application of the most frequent nickel-chromium alloy. Methods. The research was performed as an experimental study. Six metalceramic samples were made from nickel-chromium alloy (Wiron 99) and cobalt-chromium a

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3

Marita, Yusrini, and Ridwan. "Effect of Cobalt Concentration on the Microstructure of Nickel-Cobalt Alloy Deposits." Advanced Materials Research 887-888 (February 2014): 749–52. http://dx.doi.org/10.4028/www.scientific.net/amr.887-888.749.

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Nickel-cobalt alloy deposits were prepared on copper substrate by electrochemical deposition at various cobalt concentrations in electrolytic solution of 0, 6, 12, 18 and 24 g l-1. The deposition was performed at current density of 30 mA/cm2. X-ray diffraction measurements confirmed that all nickel-cobalt alloy films formed have face-centered cubic structure. EDS studies showed that Co content in Ni-Co alloys increased with the increase of cobalt sulfate concentration in the solution. It can be suggested that increasing concentration of co sulfate is the reason for an increase in activity of c

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4

Yu, Ming Ming, Hong You Li, and Yi Wang. "Study on Present Situation and New Trends of the Electrodeposition of Nickel-Cobalt Alloy." Advanced Materials Research 535-537 (June 2012): 973–76. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.973.

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Nickel-cobalt alloys have broad application prospect for their excellent properties (i.e. high microhardness, strength, abrasion, corrosion resistance and magnetic properties.etc). Present situation and new trends on mechanism of the anomalous codeposition and technology of electrodepostion of nickel-cobalt were studied. Effects of electrolysis parameters (e.g. concentration of co2+in the electrolyte, cathodic current density, pH value, temperature.etc) on the alloy composition, morphology and mechanical properties were analyzed. The formation of the monovalent intermediate (hydroxides or coll

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5

Khazi, Isman, Ulrich Mescheder, and Jürgen Wilde. "Influence of Bath Hydrodynamics on the Micromechanical Properties of Electrodeposited Nickel-Cobalt Alloys." Materials 14, no. 14 (2021): 3898. http://dx.doi.org/10.3390/ma14143898.

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The influence of bath hydrodynamics on the resultant micromechanical properties of electrodeposited nickel-cobalt alloy system is investigated. The bath hydrodynamics realized by magnetic stirring is simulated using COMSOL Multiphysics and a region of minimum variation in velocity within the electrolytic cell is determined and validated experimentally. Nickel-cobalt alloy and nickel coating samples are deposited galvanostatically (50 mA/cm2) with varying bath velocity (0 to 42 cm/s). The surface morphology of samples gradually changed from granular (fractal dimension 2.97) to more planar (frac

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6

Jiang, Yiming, Chun-Yi Chen, Xun Luo, et al. "Electrodeposition and Micro-Mechanical Property Characterization of Nickel–Cobalt Alloys toward Design of MEMS Components." Electrochem 3, no. 2 (2022): 198–210. http://dx.doi.org/10.3390/electrochem3020012.

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Nickel–cobalt alloys were prepared by alloy electrodeposition with a sulfamate bath, and the mechanical properties on the micro-scale were evaluated for the application as micro-components in miniaturized electronic devices. Nickel bromide and a commercially available surface brightener were used as the additives. The cobalt content increased from 21.5 to 60.1 at.% after addition of nickel bromide into the bath, and the grain size refined from 21.1 to 13.2 nm when the surface brightener was used. The mechanical properties on the micro-scale were evaluated by micro-compression test using micro-

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7

Kwon, Hanjung. "High-Hardness Cemented Carbide With Nickel-Tungsten Alloy Binder." Journal of Powder Materials 31, no. 4 (2024): 318–23. http://dx.doi.org/10.4150/jpm.2024.00227.

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Cemented carbide for cutting tools, which is composed of carbide as a hard phase and metallic component as a metallic phase, mainly uses cobalt as the metallic phase due to the excellent mechanical properties of cobalt. However, as the demand for machining difficult-to-machine materials such as titanium and carbon fiber-reinforced plastics has recently increased, the development of high-hardness cemented carbide is necessary and the replacement of cobalt metal with a high-hardness alloy is required. In this study, we would like to introduce high-hardness cemented carbide fabricated using nicke

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8

Ageeva, E. V., A. Yu Altukhov, R. A. Latypov, and G. R. Latypova. "X-ray spectral microanalysis of hardened additive products made of electroerosion cobalt-chromium alloys." MATEC Web of Conferences 329 (2020): 02014. http://dx.doi.org/10.1051/matecconf/202032902014.

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This article presents the results of an X-ray spectral microanalysis of cobalt-chromium alloys based on particles of the of the tungsten nickel iron alloy dispersed by electric erosion, obtained in alcohol. It has been experimentally proved that a part of oxygen is present in the cobalt-chromium alloy of particles of the cobalt-chromium-molybdenum alloy dispersed by electric erosion. All other elements are distributed relatively evenly over the volume of particles. It is shown that Co, Cr and Mo are the main elements of the (CoCrMo) alloy dispersed by electric erosion.

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9

Jusufi Osmani, Zana, Petra Tariba Knežević, Davor Vučinić, et al. "Orthodontic Alloy Wires and Their Hypoallergenic Alternatives: Metal Ions Release in pH 6.6 and pH 5.5 Artificial Saliva." Materials 17, no. 21 (2024): 5254. http://dx.doi.org/10.3390/ma17215254.

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Legislative framework addresses the issues of alloy corrosion, demanding the restricted use of probable carcinogenic, mutagenic, and toxic-for-human-reproduction (CMG) metals like nickel, cobalt, and chromium and demanding the development of new biomaterials. The aim of this research was to evaluate and compare the ion release of standard dental alloys and their hypoallergenic equivalents. Six types of orthodontic alloy wires (nickel–titanium (NiTi), coated NiTi, stainless steel (SS), Ni-free SS, and cobalt–chromium (CoCr) and titanium–molybdenum (TMA) were immersed into artificial saliva of p

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10

Emond, Christy A., Vernieda B. Vergara, Eric D. Lombardini, Steven R. Mog, and John F. Kalinich. "Induction of Rhabdomyosarcoma by Embedded Military-Grade Tungsten/Nickel/Cobalt Not by Tungsten/Nickel/Iron in the B6C3F1 Mouse." International Journal of Toxicology 34, no. 1 (2014): 44–54. http://dx.doi.org/10.1177/1091581814565038.

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Continued improvements in the ballistic properties of military munitions have led to metal formulations for which little are known about the long-term health effects. Previously we have shown that a military-grade tungsten alloy comprised of tungsten, nickel, and cobalt, when embedded into the leg muscle of F344 rats to simulate a fragment wound, induces highly aggressive metastatic rhabdomyosarcomas. An important follow-up when assessing a compound’s carcinogenic potential is to test it in a second rodent species. In this study, we assessed the health effects of embedded fragments of 2 milita

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Karfidov, E. A., E. V. Nikitina, and B. A. Rusanov. "Corrosion behavior of AlNiCoCuZr high-entropy equiatomic alloy in NaCl solution." Расплавы, no. 1 (June 14, 2024): 82–89. http://dx.doi.org/10.31857/s0235010624010083.

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The service characteristics of high-entropy alloys, in particular their corrosion properties, are the subject of active study by many scientific groups. Interest to high-entropy alloys is determined by their relative simplicity of production (most often by arc melting with low cooling rates), corrosion resistance and high values of mechanical properties (hardness, strength). A special place among high-entropy alloys is occupied by compositions based on aluminum and transition metals (nickel, iron, cobalt) due to their service characteristics comparable with some bulk-amorphous compositions. Fo

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Kovač, Vito, Borut Poljšak, Jasmina Primožič, and Polona Jamnik. "Are Metal Ions That Make up Orthodontic Alloys Cytotoxic, and Do They Induce Oxidative Stress in a Yeast Cell Model?" International Journal of Molecular Sciences 21, no. 21 (2020): 7993. http://dx.doi.org/10.3390/ijms21217993.

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Compositions of stainless steel, nickel-titanium, cobalt-chromium and β-titanium orthodontic alloys were simulated with mixtures of Fe, Ni, Cr, Co, Ti and Mo metal ions as potential oxidative stress-triggering agents. Wild-type yeast Saccharomyces cerevisiae and two mutants ΔSod1 and ΔCtt1 were used as model organisms to assess the cytotoxicity and oxidative stress occurrence. Metal mixtures at concentrations of 1, 10, 100 and 1000 µM were prepared out of metal chlorides and used to treat yeast cells for 24 h. Every simulated orthodontic alloy at 1000 µM was cytotoxic, and, in the case of coba

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13

Lai, Liyan, Feng Qian, Yuxiao Bi, et al. "Advancements in the Preparation and Application of Ni-Co System (Alloys, Composites, and Coatings): A Review." Nanomaterials 15, no. 4 (2025): 312. https://doi.org/10.3390/nano15040312.

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In the field of non-silicon MEMSs (micro-electro-mechanical systems), nickel, with its mature preparation method, good compatibility with non-silicon MEMS processes, and excellent mechanical properties, is one of the commonly used structural materials. By effectively combining it with non-silicon MEMS processes, nickel is widely used in typical process systems such as LIGA (Lithography, Galvanoformung, Abformung)/UV-LIGA (Ultraviolet Lithography, Galvanoformung, Abformung). However, with the rapid development of the non-silicon MEMS field, pure nickel materials are no longer able to meet curre

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14

Rudnik, Ewa, and Sławomir Syrek. "Studies on the Codeposition of SiC Nanopowder with Nickel, Cobalt, and Co-Ni Alloys." Journal of Coatings 2014 (July 23, 2014): 1–10. http://dx.doi.org/10.1155/2014/659697.

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Electrodeposition of SiC nanopowder (approximately 120 nm) with nickel, cobalt, and Co-Ni alloy matrix was studied. It was found that particles suspended in the bath affect slightly the reduction of metallic ions. Incorporation of the ceramic particles was governed mainly by the morphology of the matrix surface, while no strict correlation between the amount of cobalt ions adsorbed on the powder and the SiC content in the composites was found. Microhardness of nickel deposits was 585±5 HV, while for cobalt-rich coatings (84–95 wt.% Co) the values were in the range of 260–290 HV, independently

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15

Ren, Yibin. "Nickel Free Alloy for Cardiovascular Stents Application Against Restenosis Associated with Nickel: A Review." Science of Advanced Materials 12, no. 1 (2020): 44–55. http://dx.doi.org/10.1166/sam.2020.3725.

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The commercialized coronary stents are generally made of biomedical stainless steels (316L) and biomedical cobalt-based alloy (for example L605 alloy) due to their good combination of properties, especially their excellent mechanical properties. However, there are above 10% nickel content in these stents materials, which was known to trigger the inflammation and allergic responses around stents implant location, and contradiction associated with in-stent restenosis when the nickel ions began to release from stents for various corrosion. Consequently, the potential adverse effect of nickel ions

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16

Cherepova, Tetiana, Galyna Dmitrieva, Oleksandr Tisov, Oleksandr Dukhota, and Myroslav Kindrachuk. "Research on the Properties of Co-Tic and Ni-Tic Hip-Sintered Alloys." Acta Mechanica et Automatica 13, no. 1 (2019): 57–67. http://dx.doi.org/10.2478/ama-2019-0009.

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Abstract Three types of sintered alloys were fabricated based on cobalt, nickel and high-temperature alloy ZhS32-VI matrix with titanium carbide strengthening phase. TiC content was in a range of 30–50 vol. %. The melting temperatures of alloys are higher than 1320°C, and they may undergo undamaged through all technological procedures together with turbine blades, including soldering and outgassing. DSC analyses indicates no additional thermal effects until melting, which confirms their structural stability. The examinations of microstructure revealed three types of constituents – TiC particle

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17

Wang, Yunhuan, Quan Liu, Mingli Ding, et al. "Effect of Cobalt Content on the Properties of Nickel-Cobalt Alloy Coatings." Journal of Physics: Conference Series 2529, no. 1 (2023): 012007. http://dx.doi.org/10.1088/1742-6596/2529/1/012007.

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Abstract A batch of nickel-cobalt alloy coatings was pulse-electroplated on gun steel (PCrNi3MoVA) surface, in which weight fractions of Co element are 39.9 %, 55.5 %, 67.5 %, and 79.8 %, respectively. The formations of phase and crystal structure in nickel-cobalt coatings were investigated by X-ray diffraction analysis. The layers’ surface morphology and chemical composition were analyzed by scanning electron microscopy coupled with energy dispersive spectrometry. The tribological and nano-mechanical performances of the coatings were used to evaluate by high-speed reciprocating friction and w

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18

Saha, Soumen, Kasinath Ojha, Manu Sharma, and Ashok K. Ganguli. "Ni3Co/G alloy as an earth-abundant robust and stable electrocatalyst for the hydrogen evolution reaction." New Journal of Chemistry 41, no. 13 (2017): 5916–23. http://dx.doi.org/10.1039/c7nj00364a.

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19

Taher, Abulmaali M. "Effect of Alloying Elements on the Hardness Property of 90% Copper-10% Nickel Alloy." Materials Science Forum 872 (September 2016): 13–17. http://dx.doi.org/10.4028/www.scientific.net/msf.872.13.

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The objective of this study is to investigate the effect of adding some alloying elements (including iron, aluminum, chromium, cobalt, and titanium) to 90 wt. % copper – 10 wt. % nickel alloy on the hardness property. Copper-nickel synthetic alloys were prepared in an induction furnace, in an argon/7% vol. hydrogen atmosphere in cylindrical boron nitride crucibles. They were then homogenized at 950°C for 10 hours in the same protective atmosphere. Vickers hardness measurements, microstructure examination, and Energy Dispersive Spectrometry (EDS) mapping analysis were performed for all syntheti

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20

Mirkovic, Nemanja, Miroslav Draganjac, Dragoslav Stamenkovic, and Ljubisa Ristic. "Effect of recasting on the thickness of metal-ceramic interface of nickel-chromium and cobalt-chromium alloys." Vojnosanitetski pregled 65, no. 5 (2008): 365–69. http://dx.doi.org/10.2298/vsp0805365m.

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Introduction/Aim. This research was done to establish recasting effects of nickel-chromium and cobalt-chromium alloys on the thickness of their metal-ceramic interface in making fixed partial dentures. Metal-ceramic interface determines their functional integrity and prevents damages on ceramics during mastication. Investigation of metal-ceramic samples is supposed to show if base metal alloys for metalceramics are successfully recycled without any risk of reduction of metal-ceramic interface thickness. Methods. The research was performed as an experimental study. Per six metal-ceramic samples

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21

Ruismäki, Ronja, Anna Dańczak, Lassi Klemettinen, Pekka Taskinen, Daniel Lindberg, and Ari Jokilaakso. "Integrated Battery Scrap Recycling and Nickel Slag Cleaning with Methane Reduction." Minerals 10, no. 5 (2020): 435. http://dx.doi.org/10.3390/min10050435.

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Innovative recycling routes are needed to fulfill the increasing demand for battery raw materials to ensure sufficiency in the future. The integration of battery scrap recycling and nickel slag cleaning by reduction with methane was experimentally researched for the first time in this study. Industrial nickel slag from the direct Outotec nickel flash smelting (DON) process was mixed with both synthetic and industrial battery scrap. The end products of the slag-scrap mixtures after reduction at 1400 °C in a CH4 (5 vol %)-N2 atmosphere were an Ni–Co–Cu–Fe metal alloy and FeOx–SiO2 slag. It was n

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Mirkovic, Nemanja. "Effect of recasting on the elastic modulus of metal-ceramic systems from nickel-chromium and cobalt-chromium alloys." Vojnosanitetski pregled 64, no. 7 (2007): 469–73. http://dx.doi.org/10.2298/vsp0707469m.

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Background/Aim. Elastic modulus of metal-ceramic systems determines their flexural strength and prevents damages on ceramics during mastication. Recycling of basic alloys is often a clinical practice, despite the possible effects on the quality of the future metal-ceramic dentures. This research was done to establish recasting effects of nickel-chromium and cobalt-chromium alloys on the elastic modulus of metalceramic systems in making fixed partial dentures. Methods. The research was performed as an experimental study. Six metal-ceramic samples of nickel-chromium alloy (Wiron 99) and cobalt-c

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23

Mercieca, Sven, Malcolm Caligari Conti, Joseph Buhagiar, and Josette Camilleri. "Assessment of corrosion resistance of cast cobalt- and nickel-chromium dental alloys in acidic environments." Journal of Applied Biomaterials & Functional Materials 16, no. 1 (2017): 47–54. http://dx.doi.org/10.5301/jabfm.5000383.

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Background: The aim of this study was to compare the degradation resistance of nickel-chromium (Ni-Cr) and cobalt-chromium (Co-Cr) alloys used as a base material for partial dentures in contact with saliva. Methods: Wiron® 99 and Wironit Extra-Hard® were selected as representative casting alloys for Ni-Cr and Co-Cr alloys, respectively. The alloys were tested in contact with deionized water, artificial saliva and acidified artificial saliva. Material characterization was performed by X-ray diffractometry (XRD) and microhardness and nanohardness testing. The corrosion properties of the material

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Subramanian, M., N. Dhanikaivelu, and R. Rama Prabha. "Pulsed electrodeposition of cobalt and nickel alloy." Transactions of the IMF 85, no. 5 (2007): 274–80. http://dx.doi.org/10.1179/174591907x229644.

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25

Jovanović, Milan. "Nickel, cobalt and titanium-based alloys – from aircraft vehicles to medical applications - REVIEW." Metallurgical and Materials Engineering 22, no. 3 (2016): 205–20. http://dx.doi.org/10.30544/235.

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Since the introduction of nickel, cobalt and titanium-based alloys in the early 1950s, these materials in a relatively short time became backbone materials for the aerospace, energy, chemical industry and even medicine. The combination of excellent mechanical properties, corrosion resistance and bio-compatibility renders these alloys the best material choice for many critical applications. This review describes the results realized through the research in the Department of Materials Science in “Vinča” Institute. The emphasize was given to the relation between the microstructure and mechanical

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26

Ghotbi, Mohammad Yeganeh, Ali Jolagah, and Hasan-ali Afrasiabi. "Nickel–cobalt alloy nanosheets obtained from reductive hydrothermal-treatment of nickel–cobalt hydroxide carbonate." Materials Research Bulletin 47, no. 3 (2012): 631–34. http://dx.doi.org/10.1016/j.materresbull.2011.12.033.

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Santos, Évany Silva dos, Josiane Dantas Costa, Arthur Filgueira de Almeida, et al. "Electrochemical Fabrication of Ni–Co Alloy over a Wide pH Range Using Sodium Citrate as a Complexing Agent." Coatings 15, no. 2 (2025): 138. https://doi.org/10.3390/coatings15020138.

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In this study, nickel–cobalt (Ni–Co) coatings were fabricated via electrodeposition using a 22 central composite factorial design with two central and two axial points, totaling ten experiments. The effects of pH and current density on the coatings’ chemical composition and properties were evaluated. Coatings were characterized by microstructure, morphology, magnetic properties, and corrosion resistance. The results showed that pH significantly influenced chemical composition, while current density had no notable effect. Acidic pH produced cobalt-rich coatings (43–81 at.%), with uniform morpho

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Ovchinnikova, K. V., I. Y. Zhukova, and L. A. Degtyar. "Properties and Structure Electrodeposition Alloys and Composite Electrochemical Coatings of Nickel-Based." Materials Science Forum 1083 (April 6, 2023): 159–64. http://dx.doi.org/10.4028/p-3e2m5t.

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The physicomechanical properties and morphology of composite electrochemical coatings (CEC) nickel-cobalt-nanodiamond from a chloride electrolyte-colloid of optimal composition have been investigated. For this CEC, microhardness (21-25 GPa) and internal compressive stresses (150-210 GPa) were determined. The study of wear and the Corrodcoot-test of the CEC showed a higher wear resistance (1,5 times) and the protective ability (2-3 times) of the CEC in comparison with chrome coatings. Studies of the CEC morphology and the nickel-cobalt alloy showed that the roughness of the resulting deposits,

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Zhantasov, K. T., Zh M. Altybayev, M. K. Zhantasov, M. M. Yeskendirova, B. A. Lavrov, and L. H. Frangulidi. "The Research of Fluxed Sinter Production with Sufficiently High Strength and Improved Technological Properties." Eurasian Chemico-Technological Journal 14, no. 4 (2012): 351. http://dx.doi.org/10.18321/ectj133.

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This article is dedicated to utilization of substandard phosphorite fines and simultaneously producing of fluxed sinter. Optimal technological parameters of the sintering process of phosphate fines with addition of the substandard underoxidized nickel-cobalt-containing ore and the internal overburden of coal mining industry were established. The addition of the nickel-cobalt ore and internal overburden containing nickel, cobalt, silicon and aluminum in the charge composition permits to produce the fluxed sinter with improved technological properties, with acidity module 0.90-1.08, with the hig

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Yang, Shuang Ping, Jie Liu, Jian Wang, and Xin Du. "The Theoretical and Experimental Study on Making Low Iron Alloy from the Mixed Slag of Jinchuan Flash Smelting Furnace and JISCO Converter." Advanced Materials Research 803 (September 2013): 239–42. http://dx.doi.org/10.4028/www.scientific.net/amr.803.239.

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Jinchuan nickel-copper flash smelting slag is rich in iron, nickel, cobalt and copper, and JISCO converter slag is rich in iron, manganese and high CaO, etc., the two kind slags were blended, and then smelted into low-alloy iron containing nickel, cobalt, copper and manganese with smelting reduction method, which is a new comprehensive utilization methods for the Double slag. The thermodynamic calculation results of the equilibrium concentration of Fe, Cu and Ni in low-alloy iron obtained by smelting reduction under experimental condition are in good agreement with experimental results. Iron r

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Hu, Yong Jun, Dong Cao, Xi Qiang Li, et al. "The Influence of Composition on Morphology, Structure and Magnetic Properties of Ni-Co Films on Aluminum Prepared by Electroplating Method." Applied Mechanics and Materials 303-306 (February 2013): 2505–9. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.2505.

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In this paper, Ni-Co alloy films with different composition were obtained by means of electroplating method. The morphology, structure and magnetic properties of Ni-Co alloy films with different Cobalt content are evaluated. The effect of the crystal orientation on the morphology of Ni-Co deposits with different compositon was discussed. The results showed that Ni–Co alloy films with Cobalt content decrease is composed of pyramidal, spindly, mixed pyramidal and spindly, and cellular particles respectively. To the deposits with similar composition, change of morphology is related to the prefere

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Oana Armencia, Adina, Magda Antohe, Cătălina Iulia Săveanu, et al. "Analytical Study Regarding the Behavior of Cr-Co and Ni-Cr in Saliva." Medicina 58, no. 11 (2022): 1524. http://dx.doi.org/10.3390/medicina58111524.

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Background and Objectives: The interaction between dental alloys and saliva affects both its own properties and those of metallic materials. Materials and Methods: Samples made of Cr-Co and Ni-Cr were studied. It was opted for corrosion under tension, scanning electron microscopy was used to characterize the surface morphology, and the chemical composition of the surface was assessed with the help of an Energy Dispersive Spectrometer. In vitro testing of the cytotoxic impact of the study eluates was carried out by flow cytometric analysis. Results: Pitting areas appear in the mass of the Ni-Cr

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A. Nihal Ahamed, S. Senthilnathan, Deepa Lakshmi Nagarajan, Ebenezer Mani, S. Thirumalai, and Kadhiresan R. "In Vitro Evaluation of the Corrosion Resistance and Biocompatibility of Different Dental Implant Metals." Metallurgical and Materials Engineering 31, no. 3 (2025): 368–71. https://doi.org/10.63278/1386.

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Objective: To evaluate the corrosion resistance and biocompatibility of different dental implant metals in vitro. METHODS: Six dental implant metals (titanium, titanium alloy, stainless steel, cobalt-chromium alloy, nickel-titanium alloy, and zirconium) were evaluated for corrosion resistance using electrochemical impedance spectroscopy and potentiodynamic polarization tests. Biocompatibility was assessed using cell culture tests with human osteoblast-like cells. RESULTS: Titanium and titanium alloy showed the highest corrosion resistance (10.2 ± 0.5 Ω/cm² and 9.5 ± 0.4 Ω/cm², respectively) an

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Blutstein, K., and S. Pawliszyn. "Fe, Ni, Co, and Cu in FeNi alloys of H Chondrites." IOP Conference Series: Earth and Environmental Science 942, no. 1 (2021): 012021. http://dx.doi.org/10.1088/1755-1315/942/1/012021.

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Abstract This publication presents the results of chemical analyses of 173 FeNi alloy grains from four selected H ordinary chondrites: Thuathe, Chergach, Gao-Guenie and NWA 4555. Based on performed analyses and calculations, the following average chemical composition of the FeNi alloy was determined [in wt.%]: Fe - 90.75%; Ni - 8.80%; Co - 0.35%; Cu - 0.03%. The content of Cu and Co depends on the nickel content in the FeNi alloy. The low-nickel alloy represented by kamacite is enriched in cobalt (average content 0.38%) and depleted in copper (0.01%), while the high-nickel alloy, represented m

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Zhang, Wei, Xiuli Zhang, Yueyue Tan, et al. "An amorphous nickel–cobalt–boron alloy as advanced pseudocapacitor material." New J. Chem. 38, no. 10 (2014): 4666–69. http://dx.doi.org/10.1039/c4nj00912f.

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Woo, Ho K., R. Srinivasan, L. Rice, P. J. Reucroft, and R. J. De Angelis. "Reactivity and structure of nickel-cobalt bimetallic catalysts." Proceedings, annual meeting, Electron Microscopy Society of America 46 (1988): 698–99. http://dx.doi.org/10.1017/s0424820100105552.

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Ni and Co catalyst systems have been extensively dealt with in the catalyst research literature but investigations on Ni/Co alloy systems have been relatively sparse. An early study attempted to correlate catalysed hydrogenation activity with metal/alloy lattice parameter. Matsuyama et al. investigated catalytic hydrogenation of ethylene by nickel alloys as a function of surface and bulk composition. The activity increased as the proportion of Ni increased but decreased from 90 to 100%Ni. A study has been initiated to relate catalytic activity to the structure of Ni/Co bimetallic catalyst part

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Антонов, А. С., С. В. Новиков, Д. А. Пшенай-Северин та А. Т. Бурков. "Термоэлектрические свойства моносилицида кобальта и сплавов на его основе". Физика и техника полупроводников 53, № 5 (2019): 674. http://dx.doi.org/10.21883/ftp.2019.05.47561.19.

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The samples of cobalt monosilicide CoSi and its alloys with the substitution of iron or nickel for cobalt (Co$_1-x$M$_x$Si, M=Fe, Ni) were studied. The investigation were made for alloy compositions with iron content up to 10 at. % and nickel up to 5 at. %. The thermopower and electrical resistivity were measured in the temperature range of 100 – 800 K. Recent calculations of the cobalt monosilicide band structure revealed a number of essential differences from the standard semimetallic model with energy overlap of parabolic bands for electrons and holes. This raises the question on the effect

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Wu, Lian-Kui, Wei-Yao Wu, Jie Xia, et al. "A nanostructured nickel–cobalt alloy with an oxide layer for an efficient oxygen evolution reaction." Journal of Materials Chemistry A 5, no. 21 (2017): 10669–77. http://dx.doi.org/10.1039/c7ta02754k.

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Berthod, Patrice, Lionel Aranda, and Jean-Paul Gomis. "Effects of Ni Additions on the High Temperature Expansion, Melting and Oxidation Behaviors of Cobalt-Based Superalloys." Crystals 11, no. 2 (2021): 173. http://dx.doi.org/10.3390/cryst11020173.

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Nickel is often added to cobalt-based superalloys to stabilize their austenitic structure. In this work the effects of Ni on several high temperature properties of a chromium-rich cobalt-based alloy reinforced by high fraction of TaC carbides are investigated. Different thermal analysis techniques are used: differential scanning calorimetry (DSC), thermo-mechanical analysis (TMA) and thermogravimetry (TG). Results show that the progressive addition of nickel did not induce great modifications of microstructure, refractoriness or thermal expansion. However, minor beneficial effects were noted,

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Das, Santosh Kumar, and Saddam Husain Dhobi. "Radiation Shielding Properties of Nickel, Copper and Iron Based Alloys." Patan Prospective Journal 4, no. 01 (2024): 118–34. http://dx.doi.org/10.3126/ppj.v4i01.70210.

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This study explores the radiation shielding properties of Iron-based and Nickel-based alloys with Cobalt composition to evaluate their performance in photon attenuation and shielding applications. The objectives of this work are to determine linear and mass attenuation coefficients (LAC, MAC), half and tenth value layers (HVL, TVL), mean free path (MFP), effective atomic number and electron density (Zeff, Neff), effective conductivity (Ceff), atomic cross section (ACS) and electronic cross section (ECS) of nickel and iron base alloy with Cobalt using Phy-X/PSD within 0.001 MeV to 10 MeV. The r

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Fu, Shu Hong, Tao Wang, Zhao Li, and Wan Jun Jin. "Deformation Behavior of AEREX350 Alloy during Bolt Hot Heading Processing." Materials Science Forum 1072 (October 25, 2022): 137–42. http://dx.doi.org/10.4028/p-hffhv1.

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AEREX350 is a nickel-cobalt fastener superalloy developed for high temperature applications such as aerospace and petrochemical industries. The AEREX350 alloy has superior creep resistance and rupture properties similar to the other MP family alloys. As for AEREX350 alloy, scholars have carried out many studies on its cold working process, heat treatment process, stress relaxation performance and identification of precipitated phase [3-9], while very limited research on the hot deformation behavior of this interesting alloy during hot heading process. This paper is concentrated on the deformat

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Friederichs, S., and S. Lorenz. "Characterization and comparison of cobalt-base and nickel-base alloys with iron-base intermetallic hard alloys used in wear protection." Practical Metallography 61, no. 3 (2024): 144–69. http://dx.doi.org/10.1515/pm-2024-0012.

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Abstract In wear protection, cobalt-base or nickel-base materials are very often used for coatings in order to increase the functionality and service life of components. These materials such as stellite, the nickel-base alloy Colmonoy 56 or Tribaloy T400 are characterized by a high resistance to abrasion, adhesion as well as excellent corrosion resistance even at higher temperatures. Given the criticality of cobalt and partly also nickel, it is necessary to look for more sustainable alternatives to be used in wear protection. One possibility is to further develop iron-base materials so that th

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Kim, Sang-Yeob, and Oh-Sung Song. "Property of Composite Silicide from Nickel Cobalt Alloy." Korean Journal of Materials Research 17, no. 2 (2007): 73–80. http://dx.doi.org/10.3740/mrsk.2007.17.2.073.

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Maitra, N. "Development of a tungsten-nickel-cobalt heavy alloy." Metal Powder Report 57, no. 4 (2002): 40. http://dx.doi.org/10.1016/s0026-0657(02)80126-6.

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Talapatra, S., X. Tang, M. Padi, et al. "Synthesis and characterization of cobalt–nickel alloy nanowires." Journal of Materials Science 44, no. 9 (2009): 2271–75. http://dx.doi.org/10.1007/s10853-008-3015-1.

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Zaimi, Muhammad, M. N. Azran, Muhamad Khaizaki Ahmad, et al. "Electroless Ni-Co-Cu-P Alloy Deposition in Alkaline Hypophosphite Based Bath." Key Engineering Materials 694 (May 2016): 151–54. http://dx.doi.org/10.4028/www.scientific.net/kem.694.151.

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The use of electroless deposition method to deposit nickel alloy attracts attention due to its uniformity, corrosion resistance in neutral media and low friction. Quaternary nickel alloy deposit can be achieved by adding metal ion additive into the plating bath. Furthermore, the use of alkaline bath can accelerate the deposition rate, and provide sufficient thickness for corrosion protection. In this study, an electroless quaternary nickel alloy is deposited on iron coupons by adding cobalt and copper ions in hypophosphite based Ni-P alkaline bath. The nickel alloy deposit surface morphology i

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Kumar, A. Praveen, P. Raveendra Reddy, and V. Krishna Reddy. "Simultaneous Determination of Cobalt(II) and Nickel(II) by Fourth-Order Derivative Spectrophotometric Method Using 2-Hydroxy-3-Methoxy Benzaldehyde Thiosemicarbazone." Journal of Automated Methods and Management in Chemistry 2007 (2007): 1–6. http://dx.doi.org/10.1155/2007/48768.

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A simple and new simultaneous fourth derivative spectrophotometric method is proposed for the analysis of a two-component system containing cobalt(II) and nickel(II) without separation using 2-hydroxy-3-methoxy benzaldehyde thiosemicarbazone (HMBATSC) as a chromophoric reagent. The reagent reacts with cobalt(II) and nickel(II) at pH 6.0, forming soluble brown and yellow colored species, respectively. Cobalt(II) and nickel(II) present in the mixture are simultaneously determined without solving the simultaneous equations by measuring the fourth derivative amplitudes at 468.5 nm and 474.5 nm, re

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Wasel, Ola, and Jennifer Freeman. "Comparative Assessment of Tungsten Toxicity in the Absence or Presence of Other Metals." Toxics 6, no. 4 (2018): 66. http://dx.doi.org/10.3390/toxics6040066.

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Tungsten is a refractory metal that is used in a wide range of applications. It was initially perceived that tungsten was immobile in the environment, supporting tungsten as an alternative for lead and uranium in munition and military applications. Recent studies report movement and detection of tungsten in soil and potable water sources, increasing the risk of human exposure. In addition, experimental research studies observed adverse health effects associated with exposure to tungsten alloys, raising concerns on tungsten toxicity with questions surrounding the safety of exposure to tungsten

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Mo, Min, Mingjiang Xie, Xiaojuan Guo, Weiping Ding, and Xuefeng Guo. "The promoted catalytic hydrogenation performance of bimetallic Ni–Co–B noncrystalline alloy nanotubes." RSC Advances 9, no. 45 (2019): 26456–63. http://dx.doi.org/10.1039/c9ra05540a.

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Berthod, Patrice, Pierric Lemoine, and Lionel Aranda. "Study of the Behavior in Oxidation at High Temperature of Ni, Co and Fe-Base Alloys Containing Very High Fractions of Carbides." Materials Science Forum 595-598 (September 2008): 871–80. http://dx.doi.org/10.4028/www.scientific.net/msf.595-598.871.

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Nine cast alloys reinforced by very high fractions of carbides, Ni-30Cr-xC, Co-30Cr-xC and Fe-30Cr-xC with x varying from 1.2 to 2.0, were tested in oxidation at high temperature between 1,000 and 1,200°C in air for 50 hours. After oxidation, their surfaces and sub-surfaces were characterized. Even for very high carbon contents, the chromia-forming behaviour of the nickel alloys is kept. The oxidation modes of the cobalt alloys and iron alloys are not changed compared to low carbon alloys of these families. The differences of diffusion easiness of chromium in matrix, between nickel alloys, cob

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