Advanced manufacturing—A transformative enabling capability for fusion

Nygren, R. E.; Dehoff, Ryan; Youchison, Dennis; Kato, Yutai; Wang, M.; Spadaccini, C.; Henager, C.; Schunk, R.; Keicher, D.; Roach, A.; Smith, M.; Buchenauer, D.

doi:10.1016/j.fusengdes.2018.04.055

Advanced manufacturing—A transformative enabling capability for fusion

Conference · Tue May 01 00:00:00 EDT 2018

DOI:https://doi.org/10.1016/j.fusengdes.2018.04.055· OSTI ID:1483189

Nygren, R. E. ^[1]; ^[2]; ^[2]; ^[2]; Wang, M. ^[3]; Spadaccini, C. ^[3]; Henager, C. ^[4]; Schunk, R. ^[1]; Keicher, D. ^[1]; Roach, A. ^[1]; Smith, M. ^[1]; Buchenauer, D. ^[1]

Sandia National Laboratories (SNL)
ORNL
Lawrence Livermore National Laboratory
Pacific Northwest National Laboratory (PNNL)

Additive Manufacturing (AM) can create novel and complex engineered material structures. Features such as controlled porosity, micro-fibers and/or nano-particles, transitions in materials and integral robust coatings can be important in developing solutions for fusion subcomponents. A realistic understanding of this capability would be particularly valuable in identifying development paths. Major concerns for using AM processes with lasers or electron beams that melt powder to make refractory parts are the power required and residual stresses arising in fabrication. A related issue is the required combination of lasers or e-beams to continue heating of deposited material (to reduce stresses) and to deposit new material at a reasonable built rate while providing adequate surface finish and resolution for meso-scale features. Some Direct Write processes that can make suitable preforms and be cured to an acceptable density may offer another approach for PFCs.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

OSTI ID:: 1483189

Country of Publication:: United States

Language:: English

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