In-depth component distribution in electrodeposited alloys and multilayers

Péter, László; Vad, K.; Csík, A.; Muñíz, Rocío; Lobo, Lara; Pereiro, Rosario; Šturm, Sašo; Rožman, Kristina Žužek; Molnár, G.; Németh, Kornél; Neuróhr, K.; Boros, Krisztina; Pogány, L.; Bakonyi, I.

doi:10.5599/jese.480

Cited by 6 publications

(4 citation statements)

References 37 publications

(54 reference statements)

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“…Asymmetric cathode-anode arrangements in any geometry tested led to a nearly even deposit composition. This is the consequence of the pulse plating method applied, which was used in order to obtain a deposit with good in-depth homogeneity [43][44][45][46][47]. However, pulse plating generally provides a more even coverage than d.c. plating, even in areas with uneven accessibility.…”

Section: Methodsmentioning

confidence: 99%

Combinatorial Design of an Electroplated Multi-Principal Element Alloy: A Case Study in the Co-Fe-Ni-Zn Alloy System

Nagy,

Péter,

Kolonits

et al. 2024

Metals

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Multi-principal element alloys (MPEAs) are at the forefront of materials science due to their large variety of compositions, which can yield unexplored properties. Mapping the structure and properties of a compositional MPEA library in a reasonable time can be performed with the help of gradient samples. This type of specimens has already been produced in both bulk and layer forms. However, combinatorial MPEA coatings have not been synthesized by electroplating, although this method has a great potential to deposit a coating on components with complex shapes. In this study, a combinatorial Co-Fe-Ni-Zn coating with the thickness of 4 μm was synthesized by electrodeposition. The material exhibited a well-defined Zn gradient; therefore, the investigation of the effect of Zn concentration on the microstructure and mechanical properties was feasible without the production of an excessively large number of specimens. The Zn concentration was controlled laterally through mass transfer due to the unique geometry of the substrate, and it covered a concentration range of 18–44 at%. The chemical and phase compositions as well as the morphology of the as-processed samples were investigated in multiple locations using X-ray diffraction and scanning electron microscopy. The mechanical performance was characterized by nanoindentation. It was found that for any composition, the structure is face-centered cubic and the lattice constant scaled with the Zn concentration of the deposit. The hardness and the elastic modulus were consistent with values of about 4.5 and 130 GPa, respectively, in the Zn concentration range of 25–44 at%.

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Section: Methodsmentioning

confidence: 99%

Combinatorial Design of an Electroplated Multi-Principal Element Alloy: A Case Study in the Co-Fe-Ni-Zn Alloy System

Nagy,

Péter,

Kolonits

et al. 2024

Metals

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“…The latter was elaborated with László Péter, leading to an important review of the topic [57]. László Péter continued the metal electroplating studies with composition depth profile analysis of electrodeposited alloys and multilayers [58], and fine structural studies of various metals and alloys [59].…”

Section: Applied Electrochemistrymentioning

confidence: 99%

Past and present of electrochemical science in Hungary

Pajkossy

2023

J Solid State Electrochem

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“…During this transient period, solely the deposition of pure Cu takes place, and all other processes set in thereafter only. There is ample evidence for the accumulation of the preferentially deposited alloy component in the near-cathode region for various metal pairs and triplets [29][30][31][32]. This is the consequence of the change in the partial current densities with time as the nearcathode solution layer gets depleted first with respect of the preferentially deposited alloy component.…”

Section: What Is the Desired Deposit Thickness? How Fast Is The Stead...mentioning

confidence: 99%

A simple electrodeposition problem and the abundant knowledge it subserves to teach

Péter¹

2023

J Solid State Electrochem

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This paper presents a handful of electrochemical experiments related to one single system that opens up the way to teach a bunch of topics related to physical and inorganic chemistry, hence serving experience-oriented education of otherwise hard-to-understand fields. The key idea is the electrodeposition of metals from the same bath containing Cu2+ and Ni2+ ions onto electrodes that differ from each other either in size or position within the electrochemical cell. With the proper optimization of the current densities, pure Cu and a Ni-rich coating with shiny silver colour can be obtained on electrodes of large and small surface area, respectively. It will be explained in detail how to drive the discussion on the experiment so that the audience learns which processes can be treated as parallel ones (i.e. the deposition of two metals, Cu and Ni), the mass transport taking place in serial with the electrochemical reaction, and the occurrence of the mass transport limitation in an electrode process. Didactic aspects of the experiment are presented for both high school and undergraduate levels, and control experiments are also suggested to verify the conclusions achieved. Collateral topics of chemistry and materials science that can be brought up in connection with the experiment are also enumerated.

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In-depth component distribution in electrodeposited alloys and multilayers

Abstract: It is shown in this overview that modern composition depth profiling methods like secondary neutral mass spectroscopy (SNMS) and glow-discharge -time-of-flight mass spectrometry (GD-ToFMS

Cited by 6 publications

References 37 publications

Combinatorial Design of an Electroplated Multi-Principal Element Alloy: A Case Study in the Co-Fe-Ni-Zn Alloy System

Combinatorial Design of an Electroplated Multi-Principal Element Alloy: A Case Study in the Co-Fe-Ni-Zn Alloy System

Past and present of electrochemical science in Hungary

A simple electrodeposition problem and the abundant knowledge it subserves to teach

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