Academic literature on the topic 'Alloys of Tungsten and Iron group metals'

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Journal articles on the topic "Alloys of Tungsten and Iron group metals"

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Tsyntsaru, N., H. Cesiulis, M. Donten, J. Sort, E. Pellicer, and E. J. Podlaha-Murphy. "Modern trends in tungsten alloys electrodeposition with iron group metals." Surface Engineering and Applied Electrochemistry 48, no. 6 (2012): 491–520. http://dx.doi.org/10.3103/s1068375512060038.

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Shahbazi Farahani, Fatemeh, Michele Ferri, Liberato Manna, and Diego Colombara. "Porous Cu-W Alloy Fabrication via Direct and Pulsed Current Co-Electrodeposition." ECS Meeting Abstracts MA2025-01, no. 23 (2025): 1436. https://doi.org/10.1149/ma2025-01231436mtgabs.

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Fabricating by growing electro-active species on conductive substrates improves active site exposure without needing binders. Electro-deposition, a cost-effective method, enables in-situ deposition of non-precious metal catalysts on substrates like carbon paper and nickel foam. This approach enhances activity and stability for reactions such as hydrogen evolution, oxygen evolution, and CO₂ reduction.1 This research presents the first confirmed synthesis of a tungsten–copper (Cu–W) alloy via pulsed galvanic electrodeposition. According to previous studies, tungsten could not be deposited in pur
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Belevskii, S.S., A.V. Gotelyak, S.A. Silkin, and A.I. Dikusar. "The Macroscopic Size Effect of Microhardness for Electrodeposited Binary Alloys of Tungsten and the Iron Group Metals: the Role of Electrode Potential and Oxygen-Containing Impurities." Elektronnaya Obrabotka Materialov 54(2) (May 15, 2018): 9–15. https://doi.org/10.5281/zenodo.1228850.

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The microscopic size effect of microhardness that we have found earlier for electrodeposited binary alloys of tungsten and the iron group metals is explained here by an increased concentration of oxygen-containing impurities in the coatings, revealed for Co-W alloys. An increase in oxygen-containing impurities correlates with the volume current density (VCD), meaning that microhardness of electrodeposited alloys diminishes at a higher VCD. The properties of the coatings  (e.g., microhardness) are also affected by the nature of the anode used, since the complex from which electrodeposition
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Ko, Yong Kwon, Gun Ho Chang, and Jae Ho Lee. "Nickel Tungsten Alloy Electroplating for the High Wear Resistant Materials Applications." Solid State Phenomena 124-126 (June 2007): 1589–92. http://dx.doi.org/10.4028/www.scientific.net/ssp.124-126.1589.

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Nickel tungsten (Ni-W) alloy coating was electroplated to increase its mechanical properties. Tungsten cannot be electroplated by itself, however, it is codeposited with other iron group metals especially with nickel. The morphologies of nickel tungsten coating were varied with current density. To eliminate the formation of cracks, pulse plating was employed. Crackless nickel tungsten alloy were obtained in pulse reverse electroplating. Hardness of nickel tungsten coating has twice higher compared to the normal electroplated nickel.
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Belevskii, Stanislav, Serghei Silkin, Natalia Tsyntsaru, Henrikas Cesiulis, and Alexandr Dikusar. "The Influence of Sodium Tungstate Concentration on the Electrode Reactions at Iron–Tungsten Alloy Electrodeposition." Coatings 11, no. 8 (2021): 981. http://dx.doi.org/10.3390/coatings11080981.

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The investigation of Fe-W alloys is growing in comparison to other W alloys with iron group metals due to the environmental and health issues linked to Ni and Co materials. The influence of Na2WO4 concentration in the range 0 to 0.5 M on bath chemistry and electrode reactions on Pt in Fe-W alloys’ electrodeposition from citrate electrolyte was investigated by means of rotating disk electrode (RDE) and cyclic voltammetry (CV) synchronized with electrochemical quartz crystal microbalance (EQCM). Depending on species distribution, the formation of Fe-W alloys becomes thermodynamically possible at
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Myrzak, V., A. V. Gotelyak, and A. I. Dikusar. "Size Effects in the Surface Properties of Electroplated Alloys between Iron Group Metals and Tungsten." Surface Engineering and Applied Electrochemistry 57, no. 4 (2021): 409–18. http://dx.doi.org/10.3103/s1068375521040128.

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Myrzak, V., A.V. Gotelyak, and A.I. Dikusara. "On the Size Effects of the Coatings Surfaces Properties Obtained at Electrodeposition of Alloys of Iron Group Metals With Tungsten." Электронная обработка материалов 6, no. 56 (2020): 1–11. https://doi.org/10.5281/zenodo.4299831.

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The reasons for the appearance of dimensional properties of surfaces of coatings obtained under the conditions of induced codeposition of iron group metals with tungsten are investigated. It is shown that the previously described size effect of microhardness and the macroscopic size effect of the corrosion rate discovered and described in this article have the same nature – the formation of surface oxides. Deletion of oxides by abrasive treatment results in an increased corrosion rate and a lack of the size effect of microhardness. The reasons for the formation of oxides surface layers d
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Silkin, S. A., A. V. Gotelyak, N. I. Tsyntsaru, and A. I. Dikusar. "Electrodeposition of alloys of the iron group metals with tungsten from citrate and gluconate solutions: Size effect of microhardness." Surface Engineering and Applied Electrochemistry 53, no. 1 (2017): 7–14. http://dx.doi.org/10.3103/s1068375517010136.

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Belevskii, S., Alex Gotelyak, S. Ivashku, Kyril Kovalenko, and Alexandr Dikusar. "Anodic Dissolution of Surface Layers as a Method of Increasing the Microhardness of Coatings by Alloys of the Iron Group Metals with Tungsten Obtained by Induced Co-Deposition." Elektronnaya Obrabotka Materialov 59, no. 3 (2023): 1–9. http://dx.doi.org/10.52577/eom.2023.59.3.01.

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It is shown that the macroscopic dimensional effect of the composition and properties (microhardness and corrosion resistance) of coatings obtained by induced co-deposition of the iron group metals with tungsten (the effect of the surface area of electrodeposition on the composition and properties) due to the presence of oxide-hydroxide layers in the surface layer, as well as hydrogenation, is a special case of effects of this kind; this, in turn, requires a constant volumetric current density (mA/L) during electrodeposition. It has been established, using examples of electrodeposition of Fe-W
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Orecchioni, Quentin, Marie-Pierre Gigandet, Joffrey Tardelli, and Jean-Yves Hihn. "Electrochemical Study Towards a Better Understanding of Induced Codeposition with Silver." ECS Meeting Abstracts MA2024-02, no. 22 (2024): 1848. https://doi.org/10.1149/ma2024-02221848mtgabs.

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The reduction of tungstate and molybdates ions in aqueous solution is often referred as induced codeposition. Those ions can only be reduced to a metallic state alongside another element. Researches on Ni-W and Ni-Mo suggested the formation of an adsorbed bimetallic complex formation step before reduction of the induced element [1]. Cobalt and iron, sharing many properties with nickel, are also reported as inducing element for Tungsten and or Molybdenum codeposition [2]. Recently, the list of inducing elements was enlarged with a study describing Zn-W induced codeposition and highlighting the
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Dissertations / Theses on the topic "Alloys of Tungsten and Iron group metals"

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Malan, Willem du Toit. "The recovery of platinum group metals from low grade concentrates to an iron alloy using silicon carbide as reductant." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95888.

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Thesis (MEng) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: In this study, SiC reduction of Rowland and Easterns LG (Low Grade) concentrates was investigated. The purpose of the study was to investigate the feasibility of SiC as reductant with respect to metal fall, PGM grade in the alloy, slag composition, Cr solubility and overall PGM recovery. The integration of such process in the current matte-based collection process was also investigated. Currently, the matted-based collection process is most widely used for PGM recovery, but because PGM containing concentrates are becoming mo
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Conference papers on the topic "Alloys of Tungsten and Iron group metals"

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Vernickaite, E., H. Cesiulis, and N. Tsyntsaru. "EVALUATION OF CORROSION AND TRIBOLOGICAL BEHAVIOR OF ELECTRODEPOSITED TUNGSTEN ALLOYS." In BALTTRIB. Aleksandras Stulginskis University, 2017. http://dx.doi.org/10.15544/balttrib.2017.36.

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Tungsten alloy coatings with iron group metals (Ni, Fe, Co) are considered as advanced materials for various surface engineering applications. Such coatings should be resistant to mechanical and corrosive damage, and to have improved functionality and durability. Accordingly, the objectives of this review consist in a comparative study of available literature on corrosive and wear behavior of electrodeposited tungsten alloys with iron group metals, including our recent results on evaluation of electrodeposited Co-W coatings. The wear and corrosion resistance of Ni-W, Fe-W and Co-W strongly dep
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Furnish, M. D., D. H. Lassila, L. C. Chhabildas, and D. J. Steinberg. "Dynamic material properties of refractory metals: tantalum and tantalum/tungsten alloys." In Proceedings of the conference of the American Physical Society topical group on shock compression of condensed matter. AIP, 1996. http://dx.doi.org/10.1063/1.50652.

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Bersirova, Oksana. "Electrochemical synthesis, properties and applications of rhenium alloys with iron-group metals." In IXth INTERNATIONAL SAMSONOV CONFERENCE “MATERIALS SCIENCE OF REFRACTORY COMPOUNDS”. Frantsevich Ukrainian Materials Research Society, 2024. http://dx.doi.org/10.62564/m4-ob0391.

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The main objective of this study is to develop an efficient method for the electrochemical synthesis of multifunctional (magnetic and electrocatalytic) dense films of Re alloys with Iron-group metals. Heat-resistant alloys, often called superalloys, are based on the iron subgroup with refractory metals (Mo, W, Re) and are capable of operating under extreme temperature and power conditions in aggressive environments. A combination of unique physical and chemical properties makes these superalloys promising for use in high-technology sectors such as aviation, nuclear power engineering, electroni
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Yapontseva, Yuliya, Oksana Gorobets, Tetyana Maltseva, and Valeriy Kublanovsky. "Magnetic properties of electrolytic alloys of refractory metals at cryogenic and near-Curie temperatures." In IXth INTERNATIONAL SAMSONOV CONFERENCE “MATERIALS SCIENCE OF REFRACTORY COMPOUNDS”. Frantsevich Ukrainian Materials Research Society, 2024. http://dx.doi.org/10.62564/m4-yy1416.

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Alloys of refractory metals (W, Mo and Re) with iron group metals have valuable properties, such as heat and corrosion resistance, hardness and magnetic properties, which ensures their use in the aerospace, nuclear and electrical industries. Only by electrodeposition from aqueous solutions is it possible to obtain thin alloys coatings with the ability to accurately control the chemical composition, structure and thickness of the resulting deposits [1]. This paper presents a study of the influence of the nature of the refractory metal (W, Mo, Re) on the magnetic properties of electrolytic alloy
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