Ferrous metallurgy
lastmod 2025-02-04created 2023-02-164 edits
Ferrous metallurgy (ironmaking) is the method of smelting iron ore to extract iron, and mainly refers to the processes up to the production of pig iron.
Steel Industry
| Basic | ||
| Iron production (Ironworks) | Smelting | Bloomery (produces sponge iron), Blast furnace (produces pig iron) (Cold blast, Hot blast, Anthracite iron), Direct reduced iron, Korean: 제선 (Iron making), Molten Iron |
| Secondary | Wrought iron (via Finery forge or Reverberatory Puddling Furnace), Cast iron (via Cupola furnace or Induction furnace) | |
| Steelmaking (Steel mill) | Primary (Pre-1850) | Pattern welding, Crucible steel (Damascus steel), Tatara furnace, Cementation process |
| Primary (Post-1850) | Bessemer process, Open hearth furnace, Electric arc furnace, Basic oxygen process | |
| Secondary | Electro-slag remelting, Vacuum arc remelting, Argon oxygen decarburization | |
| Heat treatment methods | Annealing | Low hydrogen, Short circuit |
| Hardening/Case-hardening | Ausforming, Boriding, Carbonitriding, Carburizing, Cryogenic, Ferritic nitrocarburizing, Induction, Nitriding, Precipitation, Quench polish quench | |
| Tempering | Austempering, Martempering | |
| Cryogenic treatment (Deburring, Deflashing, Hardening), Differential heat treatment, Decarburization, Forming gas, Post weld heat treatment, Quenching, Superplastic forming | ||
| E.T.C | ||