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International Journal of Automotive Technology 2019;20(S): 39-43. |
| RECRYSTALLIZATION TEXTURE OF ELECTRODEPOSITED ZINC |
| Sang Chul Hong1, In Gi Kim1, Sae Gwang Lee1, Chul Woo Lee1, Dong Nyung Lee2, Insoo Kim1 |
1Kumoh National Institute of Technology
2Seoul National University |
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| ABSTRACT |
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Electrodeposited zinc layers help prevent the corrosion of steel surfaces. The microstructure, surface
morphology, and texture of the electrodeposits are related to the deposition variables. Herein the surface morphology and
microstructure are investigated as functions of the special electrodeposition variables, such as electrolyte composition, overpotential,
current density, electrolyte temperature and pH. Upon heat treatment, the texture of the electrodepositd layers
changes into a recrystallization texture. The texture of the as-electrodeposited and recrystallized zinc layers are studied. The
<11.0>//normal direction (ND) texture of the zinc electrodeposit can be obtained from zinc oxide, sodium hydroxide,
potassium chloride, and sodium cyanide solution baths. The <11.0>//ND texture of the zinc electrodeposit did not change even
after recrystallization. This phenomenon of zinc eletrodeposits could be described by the strain-energy release maximization
model. |
| Key Words:
Zinc, Electrodeposit, Recrystallization, Pole figure, Texture, Microstructure |
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Corresponding Author.
Insoo Kim , Email. 
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