Prediction of carbon segregation on the surface of continuously annealed hot-rolled LCAK steel
| Autor: | Amares Chattopadhyay, B.S. Murty, Debashish Bhattacharjee, V. Subramanya Sarma, K.C. Hari Kumar |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Surface (mathematics)
Materials science Furnaces Segregation (metallography) chemistry.chemical_element engineering.material Water gas Annealing Atmosphere Thermodynamic calculations Furnace atmosphere Coating Inert atmospheres Coatings Surface carbon Materials Chemistry Inert gas Hot-rolled Carbon segregation Metallurgy Segregation Metal analysis Continuous annealing Carbon content Forming processes Surfaces and Interfaces General Chemistry Condensed Matter Physics Microstructure Surfaces Coatings and Films Guttmann model chemistry Low carbon steel engineering Low-carbon Steel sheet Carbon Surface segregation |
| Zdroj: | Surface and Coatings Technology. 205:2051-2054 |
| ISSN: | 0257-8972 |
| DOI: | 10.1016/j.surfcoat.2010.08.098 |
| Popis: | An attempt has been made to predict the segregation of carbon in continuously annealed hot-rolled low-carbon aluminum-killed steel (LCAK) through thermodynamic calculations. It is found that the surface carbon content calculated by the Guttmann model is comparable with the experimental results for inert atmosphere condition, whereas a large discrepancy is observed for the conventional continuous annealing furnace atmosphere. The main reason for this difference is the water-gas reaction that takes place on the surface of the steel sheet. It is proposed that this reaction, along with furnace atmosphere, determines the extent of carbon content on the sheet's surface. Based on this, the surface carbon content for various furnace conditions could be predicted. � 2010 Elsevier B.V. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect