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本文对出土于山西绛县周家庄遗址的龙山时期铜片做了X衍射分析、电镜能谱分析和金相观察。研究表明,铜片系铜镍锌三元合金,为镍黄铜。除主要合金元素外,还含有锡、铅、硫、砷、铁等杂质。基体呈铜锌镍α固溶体再结晶晶粒和孪晶,为热锻或退火组织。铜片边缘区域有较多晶内滑移线和加工孪晶,部分晶粒破碎;铅颗粒和夹杂物有拉长变形现象。表明制作工艺为整体热锻+局部冷加工。铜片具有早期铜器的特征,属原始黄铜。铜片为中原龙山时期铜器的新材质,表明中原地区的黄铜制作技术可能从仰韶时期一直延续到龙山时期。
In this paper, X-ray diffraction, electron microscopy and metallographic observation were performed on the Longshan period copper plates unearthed at the Zhoujiazhuang site in Jiangxian County, Shanxi Province. Studies have shown that copper copper nickel-zinc ternary alloy, nickel brass. In addition to the main alloying elements, but also contains tin, lead, sulfur, arsenic, iron and other impurities. The matrix is recrystallized grains and twins of Cu, Zn, Ni α solid solution, which are hot forged or annealed. There are more intragranular slip lines and twins in the edge region of the copper, some of the grains are broken, and the lead grains and inclusions have the phenomenon of elongated deformation. Show that the production process for the overall hot forging + local cold. Copper has the characteristics of early bronze, is the original brass. The copper plate is a new material of the bronze ware of the Longshan Period in the Central Plains, indicating that the brass production technology in the Central Plains may extend from the Yangshao period to the Longshan period.