TY - JOUR
T1 - Additive manufacturing of ITER first wall panel parts by two approaches
T2 - Selective laser melting and electron beam melting
AU - Zhong, Yuan
AU - Rännar, Lars Erik
AU - Wikman, Stefan
AU - Koptyug, Andrey
AU - Liu, Leifeng
AU - Cui, Daqing
AU - Shen, Zhijian
N1 - Funding Information:
The project is supported by the grant F4E-GRT-516 from Fusion for Energy (F4E). This publication reflects the views only of the authors, and Fusion for Energy cannot be held responsible for any use which may be made of the information contained therein. SLM parameter development and the part building were performed in collaboration with AM Section in Renishaw Plc., Staffordshire, UK. Physical and Mechanical properties were tested by Tecnalia Research & Innovation, San Sebastian, Spain. Microstructure characterization was performed at the Electron Microscopy Centre at Stockholm University, which is supported by the Knut and Alice Wallenberg foundation. The authors would acknowledge Dr. B. Qian for his effort in SLM part building; Dr. K. Jansson and Mr. P. Jansson for their help in SEM sample preparation; and Prof. T. Ekstrom for his effort in language polishing.
Publisher Copyright:
© 2017 Elsevier B.V.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - Fabrication of ITER First Wall (FW) Panel parts by two additive manufacturing (AM) technologies, selective laser melting (SLM) and electron beam melting (EBM), was supported by Fusion for Energy (F4E). For the first time, AM is applied to manufacture ITER In-Vessel parts with complex design. Fully dense SS316L was prepared by both SLM and EBM after developing optimized laser/electron beam parameters. Characterizations on the density, magnetic permeability, microstructure, defects and inclusions were carried out. Tensile properties, Charpy-impact properties and fatigue properties of SLM and EBM SS316L were also compared. ITER FW Panel parts were successfully fabricated by both SLM and EBM in a one-step building process. The SLM part has smoother surface, better size accuracy while the EBM part takes much less time to build. Issues with removing support structures might be solved by slightly changing the design of the internal cooling system. Further investigation of the influence of neutron irradiation on materials properties between the two AM technologies is needed.
AB - Fabrication of ITER First Wall (FW) Panel parts by two additive manufacturing (AM) technologies, selective laser melting (SLM) and electron beam melting (EBM), was supported by Fusion for Energy (F4E). For the first time, AM is applied to manufacture ITER In-Vessel parts with complex design. Fully dense SS316L was prepared by both SLM and EBM after developing optimized laser/electron beam parameters. Characterizations on the density, magnetic permeability, microstructure, defects and inclusions were carried out. Tensile properties, Charpy-impact properties and fatigue properties of SLM and EBM SS316L were also compared. ITER FW Panel parts were successfully fabricated by both SLM and EBM in a one-step building process. The SLM part has smoother surface, better size accuracy while the EBM part takes much less time to build. Issues with removing support structures might be solved by slightly changing the design of the internal cooling system. Further investigation of the influence of neutron irradiation on materials properties between the two AM technologies is needed.
KW - 316L stainless steel
KW - Additive manufacturing
KW - Electron beam melting
KW - First wall
KW - ITER
KW - Selective laser melting
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U2 - 10.1016/j.fusengdes.2017.01.032
DO - 10.1016/j.fusengdes.2017.01.032
M3 - Article
AN - SCOPUS:85012277389
VL - 116
SP - 24
EP - 33
JO - Fusion Engineering and Design
JF - Fusion Engineering and Design
SN - 0920-3796
ER -