Zn/Ni Electrodeposition on Low Carbon Steel Substrate
| Autor: | Yasuya Ohmori, Kiyomichi Nakai, Hideki Sogo, Hiroyuki Ohtsubo |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Supersaturation
Materials science Carbon steel Scanning electron microscope Mechanical Engineering Alloy Metallurgy Metals and Alloys Analytical chemistry chemistry.chemical_element Substrate (electronics) Zinc engineering.material Crystal Nickel chemistry Mechanics of Materials Materials Chemistry engineering |
| Zdroj: | ISIJ International. 37:512-518 |
| ISSN: | 0915-1559 |
| Popis: | Zn/Ni alloy electrodeposition on a low carbon steel sheets has been examined by means of X-ray diffraction and scanning electron microscopy. With increasing current density, Ni content in a Zn/Ni film deposited decreases to a minimum value and then increases. This variation of Ni content in lower Ni baths corresponds to the morphological change of the deposits from granular η/γ mixed phases to layered hexagonal η-phase plates. But in the case of higher Ni baths, the deposited films comprise both η- and γ-phases, and the morphology varies from fine granular precipitates to large spherical particles consisting of granular precipitates. The c/a ratio of η-phase crystal varies from 1.87 to 1.75 with increasing the supersaturation of Ni atoms in η-phase deposits. The effects of quantity of electricity on Ni content of the deposits can be explained in terms of the variation of surface area of the deposits. |
| Databáze: | OpenAIRE |
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