Investigation of Selective Oxidation and Reaction Wetting of Q&P Steel Under Different Dew Point During Continuous Galvanizing
| Autor: | Haitao Jiang, Dayuan Zhou, Zhenli Mi, Yanxin Wu, Mian Li |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Annealing (metallurgy) 0211 other engineering and technologies chemistry.chemical_element 02 engineering and technology 01 natural sciences Galvanization symbols.namesake Dew point chemistry Chemical engineering Aluminium 0103 physical sciences Metallic materials symbols Wetting 021102 mining & metallurgy Leakage (electronics) |
| Zdroj: | Transactions of the Indian Institute of Metals. 74:235-242 |
| ISSN: | 0975-1645 0972-2815 |
| DOI: | 10.1007/s12666-020-02141-1 |
| Popis: | The effect of different dew points (−30 °C/− 10 °C) on the reactive wetting and selective oxidation of alloying elements of quenching and partitioning steel during continuous galvanizing was investigated. Morphology of the inhibition layer, the type of surface oxides and the variation of surface alloying elements concentration after galvanizing were all characterized. The results indicated that the enrichment of Si and Mn on the surface is lower after annealing at higher dew point, forming a more compact inhibition layer with a higher aluminum interior. Finally, better wettability of the steel during galvanizing and less leakage plating has been obtained. With the increase in dew point from −30 to −10 °C, the transformation of Si and Mn from outer oxidation to inner oxidation has occurred at 32 nm and 29 nm below the surface, respectively. Meanwhile, the oxidation depth becomes deeper. |
| Databáze: | OpenAIRE |
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