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http://dx.doi.org/10.12654/JCS.2013.29.4.07

Study on the Manufacturing Technology Applied on Iron Axes of Proto-Three Kingdoms excavated from Yangchon, Gimpo  

Yu, Jae Eun (Restoration Technology Division, National Research Institute of Cultural Heritage)
Lee, Jae Sung (National Research Institute of Cultural Heritage of Naju)
Publication Information
Journal of Conservation Science / v.29, no.4, 2013 , pp. 367-378 More about this Journal
Abstract
Microstructures and nonmetallic inclusions of five forged iron axes and one cast iron axe were analyzed. The axes were excavated from the Proto-Three Kingdom Period site located in Yangchon, Gimpo. The forging objects were made of almost pure iron and low carbon steel, and only one among five were quenched after its figuration. Malleable cast iron structures showing on the casting suggest that the decarbonized casting method were applied. According to the results of nonmetallic inclusion analysis, the axes were produced by hammering the iron bloom which was attained with low-temperature -solid-reduction-method. Showing higher Fe content over $SiO_2$, it is assumed that the re-collecting rate of Fe was low because of the insufficient forging temperature and the impurities were included during the smelting process. It is assumed that the lime was used as a preparation because of detecting high Ca contents.
Keywords
Iron axes; Microstructure; Decarbonizing; Carbonizing; Quenching; Nonmetallic inclusion;
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Times Cited By KSCI : 2  (Citation Analysis)
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