Earticle

초록

영어

This study conducts a metallurgical analysis of three swords with ring pommels (Hwandu sword) manufactured during the Proto–Three Kingdoms period and the Baekje period and excavated from the Asan and Cheonan. Specifically, we carried out analyses based on a metallurgical microscope, scanning electron microscopy with energy dispersive spectroscopy. the swords were made of bloomery iron produced through direct smelting and formed by hammering hypoeutectoid steel. It was also confirmed that other heat treatment techniques than shaping were not applied to them. In addition, all of them have a high carbon content and the crystal grains are well refined, so it is believed that the hardness and strength are high. Moreover, the analytic results of nonmetallic inclusions, No.2 swords have glassy slag and the others verified the existence of fayalite and wüstite on the glassy matrix. And a high Ca content overall. The results of comparing the swords with other swords with ring pommels excavated from the corresponding region indicated that heat treatment techniques were not applied to these artifacts despite the existence of such techniques. Thus, we analyze that the study subjects were produced as ceremonial items rather than weapons. Furthermore, the calculation results of ratios, such as CaO/SiO2 and (Al2O3/SiO2)/(CaO/SiO2), indicate that the study subjects were produced based on a similar smelting processing system. Based on the analytic results, this study also suggests a possibility of the addition of slag generation agents or the use of iron ores with a high Ca content.

목차

ABSTRACT
1. INTRODUCTION
2. SAMPLES AND METHODS
2.1. Samples for analysis
2.2. Analysis methods
3. ANALYTIC RESULTS
3.1. The archaeological sites of Cheongdangdong⋅Guryong-dong in Cheonan
3.2. The archaeological site of Galsan-ri in Asan(N0.3)
4. DISCUSSION
4.1. Comparison of production techniques applied to iron swords excavated from the Asan and Cheonan
4.2. Comparison of CaO ratios
5. CONCLUSIONS
ACKNOWLEDGEMENT
REFERENCES

키워드

저자

• Hyo Ryeong Choi [ Department of Cultural Heritage Conservation Science, Kongju National University, Gongju 32588, Republic of Korea ]
• Woo il Jung [ Haneol Research Institute of Cultural Heritage, Gongju 32539, Republic of Korea ]
• Nam Chul Cho [ Department of Cultural Heritage Conservation Science, Kongju National University, Gongju 32588, Republic of Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  보존과학회지 [Journal of Conservation Science]

• 간기

  연5회

• pISSN

  1225-5459

• eISSN

  2287-9781

• 수록기간

  2003~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 602 DDC 700