Study on vacuum diffusion welding technology of low activation martensitic steel

被引：0
|
作者：
Li P. [1 ,2 ]
Ding F. [2 ]
Xue K. [1 ]
机构：
[1] School of Materials Science and Engineering, Hefei University of Technology, Hefei
[2] Institute of Industry and Equipment Technology, Hefei University of Technology, Hefei
来源：
Hanjie Xuebao/Transactions of the China Welding Institution | 2018年 / 39卷 / 01期
关键词：
Austenite; Mechanical property; Microstructure; Vacuum diffusion welding;
D O I：
10.12073/j.hjxb.2018390021
中图分类号：
学科分类号：
摘要：
Vacuum diffusion welding experiments were carried out for low activation martensitic steel at different parameters, the influence of welding temperature and pressure on microstructure evolution, mechanical properties of welding joints were studied by comparing the microstructure, the interfacial binding rate and the tensile strength of welding joints. The results show that martensitic has transformed to austenite in the diffusion welding process, and the phenomenon is more clearly with the increase of welding temperature. Atomic diffusion effect can be enhanced by improving the welding temperature or pressure in a certain range, as well as the mechanical properties of the welding joint. The tensile strength of welding joint reaches 1 013 Mpa at 1 000℃ while the welding pressure is 20 Mpa and welding time is 120 min, and interface condition is well-bonded. © 2018, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
引用
收藏
页码：93 / 96
页数：3
相关论文
共 6 条
  • [1] Huang Q., Li C., Wu Q., Et al., Progress in development of CLAM steel and fabrication of small TBM in China, Journal of Nuclear Materials, 417, pp. 85-88, (2011)
  • [2] Jiang Z., Huang J., Hu J., Et al., Microstructure and mechanical properties of laser welded joints of CLAM steel used for fusion reactor, Transactions of the China Welding Institution, 33, 2, pp. 5-8, (2012)
  • [3] Huang Q., Development status of CLAM steel for fusion application, Journal of Nuclear Materials, 455, pp. 649-654, (2014)
  • [4] Lei Y., Gu K., Zhu Q., Et al., Hardness and microstructure of China low activation martensitic steel fusion welded joint, Transactions of the China Welding Institution, 30, 11, pp. 9-12, (2009)
  • [5] Zhou X., Liu Y., Yu L., Et al., Uniaxial diffusion bonding of CLAM/CLAM steels: Microstructure and mechanical performance, Journal of Nuclear Materials, 461, pp. 301-307, (2015)
  • [6] Lei Y., Zhang X., Chen L., Et al., Analysis on creep properties of TIG welding joints of China low activation martensitic steel, Transactions of the China Welding Institution, 37, 3, pp. 5-8, (2016)
1