Microstructure and Elevated Temperature Mechanical Properties of Cast U-10wt%Mo Alloy

作者：Jia Jianping^*; Huang Hai; Wang Zhigang; Zhang Pengcheng; Wu Sheng

来源：Rare Metal Materials and Engineering, 2013, 42(8): 1738-1741.

• uranium molybdenum alloy
• microstructure
• elevated temperature mechanical property

As a possible fuel material in fusion-fission hybrid reactor, U-Mo alloy acts as a structural material. Its mechanical properties at application temperature are of great importance. A sample of U-10wt%Mo alloy was prepared by vacuum induction melting and homogenizing annealing. XRD and SEM were used for phase and microstructure analysis. The mechanical properties of the sample at room temperature, 400, 500 and 600 degrees C were determined. Results show that there is plenty of carbide or oxide of uranium in grain boundary, which is the main cause for brittle fracture of the alloy. The ultimate strength of the sample is decreased with the test temperature increasing.

• 出版日期2013-8
• 单位中国工程物理研究院