Replacement of silicon by aluminum with the aid of vanadium for galvanized TRIP steel
| Autor: | Mohamed Kamal El-Fawkhry, T. El-Hossany, Ahmed El-Sherbiny, Ahmed Y. Shash |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:TN1-997
Materials science Silicon Retained austenite Glavanization TRIP steel Vanadium chemistry.chemical_element 02 engineering and technology 01 natural sciences Biomaterials chemistry.chemical_compound symbols.namesake Silicon free TRIP steel Ferrite (iron) TRIP effect 0103 physical sciences lcsh:Mining engineering. Metallurgy 010302 applied physics Austenite Advanced high strength steel Cementite Metallurgy Metals and Alloys 021001 nanoscience & nanotechnology Microstructure Galvanization Isothermal bainitic transformation Surfaces Coatings and Films chemistry Ceramics and Composites symbols 0210 nano-technology |
| Zdroj: | Journal of Materials Research and Technology, Vol 9, Iss 3, Pp 3578-3589 (2020) |
| ISSN: | 2238-7854 |
| Popis: | Silicon existence in conventional low carbon TRIP steel is essential for inhibiting cementite precipitation, despite that it tends to obstruct the hot-dip galvanizing process. Aluminum is considered the mostly preferable substituent of silicon for such purpose. However, it has a counter effect on the strength/ductility balance of TRIP steel as a result of ferrite grain growth. Thereby, this study aimed to completely replace silicon by aluminum in the presence of vanadium in order to enhance the coatability of such grade of steel. Microstructure of the studied steel was examined by using optical microscope and FE-SEM. XRD analysis and tent-etching technique were performed to study the fractions and morphology of the retained austenite. Moreover, the influence of the selected parameters on the mechanical properties were investigated. Showcased results promoted the significant potential of aluminum and vanadium as a substituent to the conventional silicon-based TRIP steel. This substitution has a great influence on promoting the retained austenite stability and hence the mechanical performance of TRIP steel. |
| Databáze: | OpenAIRE |
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