earticle

논문검색

Research Article

Metallurgical Study of Iron Artifacts from Guryong-ri Site in Ungcheon, Boryeong

원문정보

Eun Young Choi, Nam Chul Cho

피인용수 : 0(자료제공 : 네이버학술정보)

초록

영어

In the 6th and 7th centuries, 5 iron artifacts excavated form the Baekje Stone Tomb in Guryong-ri site, Ungcheon, Boryeong, were studied. The sample were metal microscopic observation, SEM-EDS analysis and Raman micro-spectroscopy analysis were conducted to understand the metallurgical characteristics. The microstructure observation showed the presence of ferrite and pearlite throughout, and differences in carbon content existed depending on the direction. Non-metallic inclusions were in the form of long lines, and most of them were wüstite, fayalite. It is indicated that the artifacts were forge welded using hypoeutectoid steel, with signs of carburizing and decarburizing processes. Some crystals with high P2O5, TiO2, CaO content were identified as sarcopside, ulvöspinel, and perovskite, respectively, through Raman spectroscopy. A comparison of the results with previous studies on the sites of Bujang-ri site in Seosan and Bongseon-ri site in Seocheon, which are adjacent sites in the coastal area, revealed that, while heat treatment technology was available, the artifacts were not heat-treated considering the purpose for use for these artifacts. The chemical composition of the non-metallic inclusions P2O5, TiO2, CaO were plotted in proportions to SiO2 and compared with adjacent sites. Considering that the P2O5/SiO2 ratio was widely distributed, the refining technology was not uniform. In addition, the TiO2/SiO2 ratio was found to be higher than that of other sites, meaning that a titanium-containing ore was used to manufacture the artifacts, unlike in surrounding sites, but it is not detected in all artifacts, so it may have been affected by various factors such as furnace walls in addition to raw materials. Although slag formers were used, considering the CaO/SiO2 ratio and the (Al2O3/SiO2)/(CaO/SiO2) ratio, which appear to be similar to the surrounding sites, but it is possible that CaO containing raw ore was used because it is also affected by the components of raw ore. As a result of the study, it is highly likely that ore different from that of the surrounding sites was used for production, but a more comprehensive comparative study with the surrounding sites is needed in the future.

목차

ABSTRACT
1. INTRODUCTION
2. SAMPLES AND ANALYSIS METHOD
3. RESULTS
3.1. Iron axe (No. 1)
3.2. Iron axe (No. 2)
3.3. Iron chisel (No. 3)
3.4. Iron axe (No. 4)
3.5. Iron chisel (No. 5)
4. DISCUSSION AND CONCLUSION
REFERENCES

저자정보

  • Eun Young Choi Department of Cultural Heritage Conservation Science, Kongju National University, Gongju, 32588, Korea
  • Nam Chul Cho Department of Cultural Heritage Conservation Science, Kongju National University, Gongju, 32588, Korea

참고문헌

자료제공 : 네이버학술정보

    함께 이용한 논문

      ※ 기관로그인 시 무료 이용이 가능합니다.

      • 4,300원

      0개의 논문이 장바구니에 담겼습니다.