北京延庆胡家营遗址出土铁器的科学分析

The Study on Scientific Analysis of Unearthed Iron Object in Hujiaying Site of Yanqing County in Beijing

胡家营遗址出土的12件战国铁器是研究东周时期铜器文化特征、制作技术及与周边考古学文化相互关系等学术问题的重要资料.为进一步揭示该批铁器包含的科学信息,对其进行了金相组织鉴定、夹杂物分析和碳十四测定.结果显示,14个铁器样品中有6个是韧性铸铁、1个是共晶白口铁、1个是过共晶白口铁、6个是铸铁脱碳制品,包括3个熟铁,1个亚共析钢,1个过共析钢,还有一个样品是外部熟铁,内部过共析钢,且所有样品的制作工艺皆为铸造.碳十四测年数据显示的铁器年代为春秋战国时期.

This paper presents the results of a preliminary examination of 12 iron objects from Hujiay- ing site in Yanqing County, Beijing. 14 samples obtained from 12 iron objects including farm tools, handi- craft tools and weapons have been examined by using the optical microscope and the SEM-EDX. At the same time, in order to determine the age of the site, three iron samples have been using the radiocarbon dating. Malleable iron, eutectic white iron, hypereuteetic white iron, decarburized steel are found among 14 iron samples. It can be indicates thai these artifacts were made by relately high level skill. Data of radiocarbon dating show iron in the spring and autumn and Warring States period.