Microstructure of the tungsten and reduced activation ferritic-martensitic steel joint brazed with an Fe-based amorphous alloy

被引：17
作者：
Wang, J. B. [1 ]
Lian, Y. Y. [1 ]
Feng, F. [1 ]
Chen, Z. [1 ]
Tan, Y. [1 ]
Yang, S. [1 ]
Liu, X. [1 ]
Qiang, J. B. [2 ]
Liu, T. Z. [2 ]
Wei, M. Y. [2 ]
Wang, Y. M. [2 ]
机构：
[1] Southwestern Inst Phys, POB 432, Chengdu 610041, Sichuan, Peoples R China
[2] Dalian Univ Technol, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116000, Peoples R China
来源：
FUSION ENGINEERING AND DESIGN | 2019年 / 138卷
基金：
中国国家自然科学基金;
关键词：
Divertor; First wall; Tungsten; RAFM steels; Brazing; Amorphous filler metal; HELIUM-COOLED DIVERTOR; MECHANICAL-PROPERTIES; BRAZING FOILS; DEMO; DESIGN; FABRICATION; INTERLAYER; CHOICE;
D O I：
10.1016/j.fusengdes.2018.11.017
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The effective joining of tungsten (W) and reduced activation ferritic-martensitic (RAFM) steels is crucial to fabrication of the divertors and first wall of future fusion reactors. In the present work, a low-activation Fe-based amorphous alloy of Fe67.8Cr11.5Si2.1B18.6 (at. %) is designed as the filler metal for brazing W and RAFM steels. Crack-free joint has been achieved with the amorphous alloy filler and a vanadium interlayer metal by short-time vacuum brazing at 1270 degrees C. Layer structures composed of intermetallic phases and single solid-solution phases, respectively, are alternately formed in the W/RAFM steel joint, exhibiting alternating hard and soft mechanical characteristic. Long-distance diffusion of W atoms to the steel substrate is blocked by the formation of FeW2B2 and Fe3B phases, and Si and B elements are confined within the main bonding seam of the joints. Microstructure recovery for the steel is realized following the standard heat treatment procedures. The present results suggest a promising way of making strong and tough W/RAFM joints with low-activation Fe-based amorphous alloys.
引用
收藏
页码：164 / 169
页数：6
相关论文
共 32 条
  • [1] Manufacturing and joining technologies for helium cooled divertors
    Aktaa, J.
    Basuki, W. W.
    Weber, T.
    Norajitra, P.
    Krauss, W.
    Konys, J.
    [J]. FUSION ENGINEERING AND DESIGN, 2014, 89 (7-8) : 913 - 920
  • [2] [Anonymous], FUSION SCI TECHNOL
  • [3] Process optimization for diffusion bonding of tungsten with EUROFER97 using a vanadium interlayer
    Basuki, Widodo Widjaja
    Aktaa, Jarir
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2015, 459 : 217 - 224
  • [4] Investigation on the diffusion bonding of tungsten and EUROFER97
    Basuki, Widodo Widjaja
    Aktaa, Jarir
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2011, 417 (1-3) : 524 - 527
  • [5] Rational design of composite interlayer for diffusion bonding of tungsten-steel joints
    Cai, Qingshan
    Zhu, Wentan
    Ma, Yunzhu
    Liu, Wensheng
    Pang, Xinkuan
    Liang, Chaoping
    [J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2018, 70 : 155 - 161
  • [6] Diffusion brazing of tungsten and steel using Ti-Ni liquid phase forming interlayer
    Cai, Qingshan
    Liu, Wensheng
    Ma, Yunzhu
    Wang, Zixuan
    [J]. FUSION ENGINEERING AND DESIGN, 2015, 91 : 67 - 72
  • [7] Microstructure, residual stresses and mechanical properties of diffusion bonded tungsten-steel joint using a V/Cu composite barrier interlayer
    Cai, Qingshan
    Liu, Wensheng
    Ma, Yunzhu
    Liu, Haoyang
    [J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2015, 48 : 312 - 317
  • [8] ITER-like divertor target for DEMO: Design study and fabrication test
    Crescenzi, F.
    Greuner, H.
    Roccella, S.
    Visca, E.
    You, J. H.
    [J]. FUSION ENGINEERING AND DESIGN, 2017, 124 : 432 - 436
  • [9] Analysis of steady state thermal-hydraulic behaviour of the DEMO divertor cassette body cooling circuit
    Di Maio, P. A.
    Garitta, S.
    You, J. H.
    Mazzone, G.
    Vallone, E.
    [J]. FUSION ENGINEERING AND DESIGN, 2017, 124 : 437 - 441
  • [10] Development of brazing foils to join monocrystalline tungsten alloys with ODS-EUROFER steel
    Kalin, B. A.
    Fedotov, V. T.
    Sevrjukov, O. N.
    Kalashnikov, A. N.
    Suchkov, A. N.
    Moeslang, A.
    Rohde, M.
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2007, 367 (SPEC. ISS.) : 1218 - 1222
1234