Bonding Interface of W-CuCrZr Explosively Welded Composite Plates for Plasma Facing Components

doi:10.1016/j.jmst.2014.11.014

J. Mater. Sci. Technol. ›› 2014, Vol. 30 ›› Issue (12): 1230-1234.DOI: 10.1016/j.jmst.2014.11.014

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Bonding Interface of W-CuCrZr Explosively Welded Composite Plates for Plasma Facing Components

Congxiao Sun, Shuming Wang, Wenhao Guo, Weiping Shen, Changchun Ge

Department of Materials Science and Engineering, University of Science & Technology Beijing, Beijing 100083, China

Received:2014-10-01 Revised:2014-10-27 Online:2014-12-20 Published:2015-07-23
Supported by:
The authors gratefully acknowledge the financial supports from the ITER-National Magnetic Confinement Fusion Program (Nos. 2014GB123000 and 2010GB109000), and the National Natural Science Foundation of China (No. 51172016).

Abstract

Abstract: In order to realize the effective jointing of tungsten and CuCrZr alloys manufactured for plasma facing components (PFCs), explosive welding is employed for its some unique advantages. Different welding characteristics were investigated in this study. The interfacial waveform of the welded plates changed periodically from flat-wavelet to a large wave and finally to a stable wave, which began with the detonation point. The bonding strength of the specimens is higher than 32.9 MPa. Welding hardening and the formation of microcracks occurred at the interface zone. The results demonstrate that the joining reliabilities need to be improved in order to meet the need of applications involving the use of explosive welding to fabricate tungsten-based PFCs.

Key words: Explosive welding, W-CuCrZr, Interfacial waveform, Plasma facing components, Bonding strength

Congxiao Sun, Shuming Wang, Wenhao Guo, Weiping Shen, Changchun Ge. Bonding Interface of W-CuCrZr Explosively Welded Composite Plates for Plasma Facing Components[J]. J. Mater. Sci. Technol., 2014, 30(12): 1230-1234.

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Bonding Interface of W-CuCrZr Explosively Welded Composite Plates for Plasma Facing Components

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