가야고분군 아카이브

초록(영문)

Iron manufacturing technology system was a little differency according to era and area which was practiced. In the Gaya area Haman and Gimhae area were cultural center of Gaya union Iron artifacts excavated from those area were analyzed manufacturing technology for contrasting its differency with vicinities area and also other area. In this study 7 iron artifacts were chosen from Haman Ogokri site and Gimhae Anyangri site of 5nd century by the historical record showed and there microstructures were analyzed. Additionally referring to the result of previous studies for iron artifacts from Gimhae Daesungdong site we analyzed and contrasted iron manufacturing technology system of those three area which were geographically near place and its change according to the periodic differency. As a result the materials maked use of iron manufacture applied to mainly sponge iron produced by the low temperature reduction process and some of them was identified producing the iron by decarbonization from cast iron. In the choice of material Ogokri artifacts were used high-carbon steel or steel that carbon's content was equilized at the steel. Anyangri artifacts were used pure steel or iron containting small amount of carbon by carburizing. Daesungdong artifacts as a whole were used low-carbon steel and the part which hith strength were used high-carbon steel. As a heat treatment technique for reinforcing the strength to the necessary parts practiced a facultative quenching process distinguishing functionally between the necessary parts or not but Anyangri artifacts are difficult to expect the quenching effect because of a small amount of carbon limitted to the surface. At strength is necessary parts dispite Ogokri artifacts use high-carbon steel some of those were not practiced a quenching process. Daesungdong atifacts practiced a quenching process at strength is necessary parts others parts treated nearby quenching process. Also overheating structure showed frequently at ancient iron manufacture is appearing to Ogokri artifacts and Anyangri artifacts. Haman Ogokri artifacts of 5nd century by the historical record was made by the production process of Baekje method according to steelmaking molding heat treatment order Gimhae Anyangri artifacts of 5nd century by the historical record was made by the production process of Sinra method according to molding carburizing heat treatment order. Also from existing analysis result of iron artifacts of Daesungdong old tomb group presuming to burial ground of Geumgwan Gaya the artifacts of the first half of 2nd century appear production process of Baekje technology and the artifacts of the first half of 5nd century from the first half of 3nd century is changing to Sinra technology.

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