本文介绍了阴极真空蚀刻法显示铀晶粒组织的技术,并将其蚀刻结果与偏振光和电解浸蚀等方法得到的组织进行了比较。结果表明,在显示铀的晶粒边界和李晶线,以及显示铀在α相温度范围形变后的组织细节等方面,阴极真空蚀刻法比偏振光和电解浸蚀等方法效果好。 In this paper, the technique of cathodic vacuum etching to reveal the grain structure of uranium is introduced, and the results of etching are compared with those from polarized light and electrolytic etching. The results show that the cathode vacuum etching method is more effective than the polarized light and electrolytic etching methods in displaying the grain boundaries and the Li Jing line of uranium and the details of the microstructure after the uranium is deformed in the α-phase temperature range.