+高级检索
VPS-EBW法制备W/Cu功能梯度材料及热负荷实验研究
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

TG113.2 TB34

基金项目:

国家自然科学基金项目(10475080)资助


Fabrication of W/Cu Functionally Graded Materials Used for Nuclear Fusion Devices by VPS-EBW Method and Research of Electron Beam Radiation
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    采用真空等离子体喷涂-电子束焊接法制备出核聚变面对等离子体W/Cu功能梯度材料,梯度材料中成分分布均匀、密度较高。电子束辐照热负荷实验发现:8MW/m^2的热负荷条件下,样品可以承受20s的辐照:在2.5Mw/m^2,4.5MW/m^2,6MW/m^2的热负荷条件下,样品可分别承受26s,22s,20s的辐照而没有出现明显的损伤现象。样品疲劳实验也表现出很好的性能:8MW/m^2,10s辐照,可以承受70周热疲劳:6MW/m^2,20s辐照,在第90周裂纹开始形成;在2.5MW/m^2,辐照时间为30s和4.5MW/m^2,辐照时间为25s条件下,样品经过100周热疲劳实验均没有出现明显的损伤现象。对已出现裂纹的断面作X射线能量色散能谱(EDS)分析发现,由于焊料本身或者焊接时引入的杂质和虚焊,导致材料承受较高热负荷实验时的热应力迅速增大到破裂极限,使表面温度快速升高,而导致材料连接失效。

    Abstract:

    This paper introduces the fabrication method of W/Cu-FGM by Vacuum Plasma Spraying & Electron Beam Welding.Specimen could endure 20 s pluses under heat fluxes of 8 MW/m2.No damages appeared in the tested specimens which endured 26 s,22 s,20 s pluses under 2.5 MW/m2,4.5 MW/m2,6 MW/m2,respectively.Good performances were presented in the fatigue tests of the specimens.The specimens could endure 70 cycles fatigue under 6 MW/m2 and 20 s pluses;No damages appeared after the specimens were subject to 100 cyles fatigue test under 2.5 MW/m2,30 s and 4.5 MW/m2,25 s.Crack began to come into being during 90 cycles fatigue at the heat fluxes of 6 MW/m2,enduring 20 s.The specimen was analyzed by EDS.Impurities and pores were observed.

    参考文献
    相似文献
    引证文献
引用本文

种法力 陈俊凌 李建刚. VPS-EBW法制备W/Cu功能梯度材料及热负荷实验研究[J].稀有金属材料与工程,2006,35(9):1509~1512.[Chong Fali, Chen Junling, Li Jiangang. Fabrication of W/Cu Functionally Graded Materials Used for Nuclear Fusion Devices by VPS-EBW Method and Research of Electron Beam Radiation[J]. Rare Metal Materials and Engineering,2006,35(9):1509~1512.]
DOI:[doi]

复制
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2005-09-28
  • 最后修改日期:2005-09-28
  • 录用日期:
  • 在线发布日期:
  • 出版日期: