| Abstract |
| The microstructure of a hammer scale excavated from the Bogam-ri was examined in an effort to understand the iron technologies applied in the manufacturing of an iron forging process technology. The microstructures of oxide layer in the hammer scale were found to have crucial information about the ancient iron forging process treatment. The microstructure observed in the hammer scale can be distinguished by the forging process. First, the microstructure of the oxide layer in the hammer scale created by the forging process is Wstite (FeO) in the form of leaves. Latterly, the microstructure of the Wustite (FeO) in the hammer scale is observed to be in the form of a flat shape formed by a repeating forging process. |
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| Key Words |
| Hammer scale, bloomery iron, bogam-ri, forging process, slag |
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