고려 청동기 유물의 제작기법에 관한 연구 = Research On the Manufacturing Technology of Some Koryo Bronze Artifacts

다국어 초록 (Multilingual Abstract)

This study has examined the metallurgical microstructures and alloy compositions of 3 bronze artifacts, a vessel, a spoon and a chopstick, manufactured in the Koryo Dynasty. The results show that they were made from Cu-Sn alloys whose Sn content ranges from 22 to 24% by weight. It is of significant importance to find that they were all given special thermo-mechanical treatments during their manufacturing. It has been found that the Koryo bronze workers were well aware of the mechanical properties of α, β, γ and δ phases that appear in the Cu-Sn alloys. Knowing how to promote or suppress the formation of each phase, they were able to find proper alloy compositions and temperatures for the high Sn alloys to be successfully forged. The present study will detail the Koryo bronze technology as estimated from the microstructures of the 3 bronze artifacts. The results of the reproduction experiments with Cu-24%Sn will also be presented to explain how the microstructures develop and to estimate the mechanical properties of each phase.

참고문헌 (Reference)

1 "청동유물의 제작기법 연구" 1999.

2 "철기 및 청동기 유물 제작에 관한 고고금속학적 연구" 홍익대학교 2003.

3 "주석함량이 높은 청동의 압축변형 특성에 관한 연구" 1999.

4 "주물과 비철금속재료의 열처리" 원창출판사 1994.