| Autor: |
Wołczyński W., Pogoda Z., Garzeł G., Kucharska B., Sypień A., Okane T. |
| Jazyk: |
angličtina |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
Archives of Metallurgy and Materials, Vol 59, Iss 3, Pp 1223-1233 (2014) |
| Druh dokumentu: |
article |
| ISSN: |
2300-1909 |
| DOI: |
10.2478/amm-2014-0212 |
| Popis: |
A hot dip (Zn) – coating formation is carried out in the industry conditions. Two types of the steel substrate are applied to the experiment. Two morphologically different coatings are obtained, accordingly. A hot dip (Zn) – coating formation is also carried out in the laboratory conditions for making some additional explanations of the revealed phenomena. The thickening of the - phase sub-layer is observed in details to determine time of the transition from stable into meta-stable solidification. The Fe-Zn phase diagrams for stable and meta-stable equilibrium are calculated, respectively. The phase diagram for dissolution is also determined. The criterion of the higher temperature of the solid/liquid (s/l) interface is successfully applied to the Fe-Zn system to justify the competition between stable and meta-stable solidification. The mass balance verification is performed for the (Zn) - coating in order to define the nominal Zn–solute concentration required by dissolution and next by solidification. The Zn – solute concentration in the dissolution, super-saturation and saturation zones are determined thermodynamically. The growth kinetics is described for all the sub-layers in the (Zn) – coating. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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