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Gamburg, Yu. D.; Zakharov, E. N.; Goryunov, G. E.

doi:10.1023/a:1016752231015

Cited by 19 publications

(15 citation statements)

References 2 publications

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“…At cathodic current densities 2 and 4 А dm − 2 , the composition of the Fe-W alloys remains almost identical. This confirms the earlier finding that such coatings are almost not affected by the electrodeposition process in that range of current density [14].…”

Section: Surface Morphology and Composition Of Fe-w Coatingssupporting

confidence: 92%

“…The maximum microhardness was obtained for Fe-W coatings electrodeposited from citrate-ammonia baths operated at 70°С. An important feature of such alloys was their amorphous or nanocrystalline structure [6,[14][15][16][17][18]. The corrosion behavior of such Fe-W coatings was reported by Kublanosky et al [18].…”

Section: Introductionmentioning

confidence: 99%

“…At least four processes take place during the electrodeposition of Fe-W alloys, namely the reduction of both iron complexes and tungstate ions, the evolution of hydrogen, and the formation of products resulting from the incomplete reduction of iron ions [14][15][16]. Moreover, the current efficiency, the structure, and the morphology of such electrodeposited alloys depend on the cations presented in the electrolyte, namely NH 4 + , K + , and Na + [16].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the current efficiency, the structure, and the morphology of such electrodeposited alloys depend on the cations presented in the electrolyte, namely NH 4 + , K + , and Na + [16]. Recently, the mechanical properties of Fe-W coatings deposited from various electrolytes at current densities varying from 1 to 35 А dm − 2 at plating temperatures between 40 and 90°С, were reported [6,12,14]. The maximum microhardness was obtained for Fe-W coatings electrodeposited from citrate-ammonia baths operated at 70°С.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Iron–tungsten alloys electrodeposited under direct current from citrate–ammonia plating baths

Цынцару

Bobanova

et al. 2009

Surface and Coatings Technology

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Section: Surface Morphology and Composition Of Fe-w Coatingssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Iron–tungsten alloys electrodeposited under direct current from citrate–ammonia plating baths

Цынцару

Bobanova

et al. 2009

Surface and Coatings Technology

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“…The similar plateau obtained for Fe-W electrodeposition is described by Gamburg. 18 It might be attributed to the water decomposition, reduction of dissolved oxygen and partial reducing of iron compounds.…”

Section: Was Estimated Asmentioning

confidence: 99%

Fe (III)-Based Ammonia-Free Bath for Electrodeposition of Fe-W Alloys

Nicolenco

Цынцару

Cesiulis

2017

J. Electrochem. Soc.

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Electrodeposited Fe-W alloys are the subject of extensive studies to be applied in versatile engineering applications, and many solutions based on Fe(II) complexes are described for their deposition. However, in aqueous solutions containing dissolved oxygen, Fe(II) compounds are unstable thermodynamically and tend to oxidize to Fe(III) state that decreases the sustainability of the baths. The aim of the present study was to develop an environment-friendly and thermodynamically stable Fe(III)-based electrolyte for electrodeposition of Fe-W alloys with tunable composition. It was found that: (i) concurrent use of two complexing agents as citric and glycolic acids stabilizes Fe(III)-based bath in neutral and weak alkaline medium (no precipitates are formed); (ii) the current efficiency of the process can reach up to 60-70%, which has never been reported before for Fe-W alloys electrodeposition; (iii) nanocrystalline Fe-W coatings containing 11-24 at.% of W can be obtained from Fe(III)-based glycolate-citrate bath at temperature range 20-65 • C. The increase in tungsten content in the alloy resulted in decreased grain size up to < 5 nm; (iv) smooth, free of cracks and having deposition rates up to 0.18 μm/cm 1 alloys are successfully electrodeposited at elevated temperatures from elaborated glycolate-citrate electrolyte.

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The Behaviour of Selenium Impurities During the Addition of Se‐Containing Manganese to Steel Melt

Aboutalebi

Isac

Guthrie

2004

steel research international

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Manganese is an important alloy addition for alloy steels. It is normally added to steel melts as ferromanganese. However, for the adjustment of melt composition, manganese metal is used as a trimming addition since it has lower levels of impurities than ferromanganese. The manganese used for this purpose is obtained from the electrolytic processing route wherein selenium-containing additives are added to the electrolyte bath to improve the current efficiency. This practice introduces selenium to the manganese metal. Given that selenium and its compounds are potentially toxic and damaging to the work place and environment, effluents have to be treated in a controlled manner. In order to determine how selenium typically distributes between molten steel, slag and gas phases, a laboratory-scale experimental study was carried out to evaluate the deportment of selenium following the addition of selenium containing manganese to the steel melt. Contaminated commercial manganese metal, as well as Mn-AI-Se spiked briquettes with different selenium contents were added to steel melts at 1600 "O. Selenium recovery to the solidified steel samples varied from 16% to 75%, depending on selenium levels of additions. Owing to the high vapour pressure of selenium, significant amounts of the selenium added to the melt evaporated, reacting with air to form selenium dioxide. SEM analysis of the solidified steel samples revealed that the selenium was largely present as manganese selenide (MnSe) in the form of spherical inclusions within the iron matrix. A thermodynamic assessment on the potential formation of possible selenium compounds within the steel melt suggests that the most stable selenium compound under the test conditions is MnSe, in accord with experiments.

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Untitled

Cited by 19 publications

References 2 publications

Iron–tungsten alloys electrodeposited under direct current from citrate–ammonia plating baths

Iron–tungsten alloys electrodeposited under direct current from citrate–ammonia plating baths

Fe (III)-Based Ammonia-Free Bath for Electrodeposition of Fe-W Alloys

The Behaviour of Selenium Impurities During the Addition of Se‐Containing Manganese to Steel Melt

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