Multilayering process of electrodeposited nanocrystalline iron–nickel alloys for further strengthening

Zhang, Shuzhe; Kobayashi, Shoichi

doi:10.1007/s10853-020-04378-z

Cited by 10 publications

(3 citation statements)

References 46 publications

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“…It is well-known that data on the phase composition, structure, texture and structural defects of the applied layers is extremely necessary to develop advanced technologies for producing electrodeposited coatings having improved physical [1][2][3], mechanical [4][5][6] or chemical [7][8][9] properties. These data can be predictably controlled using the recently established phenomenon of electrochemical phase formation in metals and alloys via a supercooled liquid state-stage [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Polymorphic Phase Formation in Metals

Girin

2021

Acta Metall Slovaca

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The phenomenon of electrochemical phase formation in metals and alloys via a supercooled liquid state stage was discussed. Assuming the electrodeposited metal to be a product of formation and ultrarapid solidification of supercooled metallic liquid, a possibility of metastable phase formation during electrodeposition of polymorphous metals was suggested. It was anticipated that the polymorphic transition of the metal’s metastable form to the stable one occurs by shear, as does the martensitic transformation. To enable revealing an orientation relationship between grains of the two phases, a method for X-ray texture analysis of metals was developed using a combination of direct pole figures. It was established that the phase formation during electrodeposition of polymorphous metals produces metastable modifications typical of entities that crystallized from a liquid state at extremely high rates. In regards polymorphic transitions in metal electrodeposition, certain orientation relationships were observed between grains of the stable and the metastable phase, which is typical of phase transformations proceeding at extremely high rates. The results obtained provided additional arguments in favor of the phenomenon under discussion.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Polymorphic Phase Formation in Metals

Girin

2021

Acta Metall Slovaca

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“…It is known that the properties of electrocrystallised metals and alloys largely depend on their phase composition, texture and structure. [1][2][3][4][5] Therefore, a targeted improvement of the properties of electrocrystallised metals/alloys is possible based on concepts about their phase, texture and structure formation.…”

Section: Introductionmentioning

confidence: 99%

Reorientation of grain crystal lattices in metals/alloys during electrocrystallisation under the action of force

Girin

2024

Materials Science and Technology

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The purpose of the study was experimental verification of the proposed concept of phase formation in electrocrystallised metals/alloys via the stage of supercooled liquid state. In accordance with the purpose, the task was to reveal the features of formation of the crystallographic texture in metals/alloys during their electrocrystallisation under the action of small force. The effect of the emergence of a new crystallographic texture with lower surface energy in metals/alloys during electrocrystallisation under the action of small external force exerted in the direction opposite to the initial axis of the texture was experimentally established. The obtained result is one more proof of the validity of the concept of phase formation in electrocrystallised metals/alloys via the stage of supercooled liquid state.

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“…The production of electrodeposited metals/alloys in the form of electrodeposits with improved mechanical, [1][2][3][4] physical, [5][6][7][8] or chemical [9][10][11][12] properties requires an insight into their structural state, phase composition, microstructure, substructure, texture, and surface morphology. A purposeful control of the above structural characteristics is only possible with understanding the features of the formation of the metal or alloy phase, the structure, and the texture during their electrochemical deposition.…”

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confidence: 99%

Review—Electrochemical Phase Formation via a Supercooled Liquid State Stage: Metastable Structures and Intermediate Phases

Girin

2022

J. Electrochem. Soc.

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A review of experimental works proving the existence of the phenomenon of the electrochemical phase formation in metals and alloys via a supercooled liquid state stage is presented. The research findings focused on the electrochemical formation of metastable structures and intermediate phases, as well as on the structural features accompanying them. Electrochemical amorphous phase formation in metals and alloys, electrochemical quasicrystalline phase formation in metals, and electrochemical polymorphic phase formation in metals are discussed. Electrochemical hydrogen-related structure formation in metals, electrochemical high-defect crystalline phase formation in metals, and electrochemical texture-inhomogeneous structure formation in metals are considered. Electrochemical formation of intermediate phases in metals and alloys, electrochemical formation of eutectics in metallic alloys, and electrochemical formation of chemical compounds at the metallic cathode/electrodepositing metal interface are analyzed. Electrochemical reduction of ions in metals and alloys at a liquid cathode versus a solid chemically identical one, electrochemical phase formation of metals at chemically identical solid or liquid cathode, and electrochemical phase formation of alloys at chemically identical solid or liquid cathode are discussed.

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Multilayering process of electrodeposited nanocrystalline iron–nickel alloys for further strengthening

Cited by 10 publications

References 46 publications

Electrochemical Polymorphic Phase Formation in Metals

Electrochemical Polymorphic Phase Formation in Metals

Reorientation of grain crystal lattices in metals/alloys during electrocrystallisation under the action of force

Review—Electrochemical Phase Formation via a Supercooled Liquid State Stage: Metastable Structures and Intermediate Phases

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