Ultrafine-grained W alloy prepared by spark plasma sintering with high thermal stability and excellent irradiation resistance
作者: Z.M. WuX.B. ZhouJ.W. LiuJ.L. DuS.R. ZouY. HuangQ. HuangK.J. YangJ. ZhangJ.C. HuangE.G. Fu
刊名: Nuclear Fusion, 2020, Vol.60 (3)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/ab6306
原始语种摘要: Ultrafine-grained W-5wt.% Cr-5wt.% Y (W5C5Y alloy was prepared by the spark plasma sintering method. Investigation of the microstructure showed that the grain growth was suppressed by the addition of Cr and Y. They not only enhance the density of sintered materials, but also purify and strengthen the grain boundaries through the second-phase particles formed by the reaction with free O. Ultrafine-grained W5C5Y exhibits ultrahigh hardness, which is much higher than that of ITER-grade W. It also shows high thermal stability even at the annealing temperatures of 1000 °C and 1100 °C, and exhibits higher irradiation resistance compared with ITER-grade W.
全文获取路径: IOP 

  • sintering 烧结
  • grained 粒状的
  • excellent 优秀的
  • thermal 热的
  • prepared 有准备的
  • stability 稳定性
  • alloy 合金
  • plasma 深绿玉髓
  • resistance 抵抗
  • hardness 硬度