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Hot rolling and annealing of cast Fe-Al-Si-C alloy
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SYSNO ASEP 0353228 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Hot rolling and annealing of cast Fe-Al-Si-C alloy Author(s) Schindler, I. (CZ)
Hanus, P. (CZ)
Kopeček, Jaromír (FZU-D) RID, ORCID
Jarošová, Markéta (FZU-D) RID, ORCID
Kratochvíl, P. (CZ)
Kozelský, P. (CZ)
Kulveitová, H. (CZ)
Rusz, S. (CZ)
Subíková, M. (CZ)
Cagala, M. (CZ)Source Title Hutnické listy - ISSN 0018-8069
Roč. 63, č. 4 (2010), 86-91Number of pages 6 s. Language eng - English Country CZ - Czech Republic Keywords iron aluminides ; rolling ; metallography ; EBSD Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GAP107/10/0438 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10100520 - FZU-D (2005-2011) AV0Z10100521 - FZU-D (2005-2011) Annotation The iron aluminides with an increased content of silicon and carbon are used for structural purposes in the cast state. A special method of hot rolling of laboratory castings from the alloy Fe – 29.5 Al – 0.47 Si – 1.16 C (wt. %) was developed, preventing the origin of surface cracks in contact with the cold work rolls and enabling forming this material with the extremely low plasticity. The structure of the initial castings is characterized by a large heterogeneity, as far as mainly the distribution, shape, size and orientation of carbides Al4C3 is concerned. After the multi-pass hot rolling, the structure with grains stretched in the direction of rolling was achieved. The long-term annealing at temperature 1200 °C led progressively to crumbling of the greatest formations and, vice versa, coarsening of the finest grains. The present aluminium carbides hamper the static recrystallization of the investigated material very effectively. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2011
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