MICROSTRUCTURE AND CRYSTAL STRUCTURE ANALYSIS OF F1 FERRITIC STEEL
| Main Authors: | Darwinto, Tri; Pusat Teknologi Bahan Industri Nuklir (PTBIN)-BATAN Kawasan Puspiptek, Serpong, Tangerang Selatan 15314, Jahja, A. K.; Pusat Teknologi Bahan Industri Nuklir (PTBIN)-BATAN Kawasan Puspiptek, Serpong, Tangerang Selatan 15314 |
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| Other Authors: | BATAN |
| Format: | Article application/pdf eJournal |
| Bahasa: | ind |
| Terbitan: |
BATAN
, 2013
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| Online Access: |
http://jurnal.batan.go.id/index.php/jsmi/article/view/1066 |
Daftar Isi:
- Ferritic stainless steel code named F1 has been synthesized by foundry method. The F1 steel was synthesized using the crude ore materials mined in Indonesia, consisting of ferro scrap, ferro chrome, ferro manganese, and ferro silicon, all in granular form. A small quantity of titanium has also been added to this very low carbon ferritic steel. The synthesis was started by calculating the required amount of the starting materials based upon the principal predetermined ferritic composition specification. The next step involves pouring the base materials into the induction foundry furnace which is equipped with an electromagnetic inducto-thermo system. The stirring was carried out automatically by the system. The melting materials are then poured successively first into a ladle, and then into the sand casting. Some of the steels were normalized by homogenization at 1200 °C for 20 hours, and some characterization was carried out. The microstructure observation shows that the material’s surface is homogeneous and the grain boundaries appear somewhat diffuse. The diffraction pattern shows that the material has the BCC crystal structure and a lattice parameter of approximately 2.8871 Å by Rietveld analysis.Keywords: Stainless steel, Ferritic, Foundry method, Microstructure, Crystal structure.