This title appears in the Scientific Report :
2017
Please use the identifier:
http://dx.doi.org/10.1016/j.fusengdes.2017.02.054 in citations.
Please use the identifier: http://hdl.handle.net/2128/16143 in citations.
Tensile deformation behavior of tungsten fibre-reinforced tungsten composite specimens in as-fabricated state
Tensile deformation behavior of tungsten fibre-reinforced tungsten composite specimens in as-fabricated state
To overcome the inherent brittleness of tungsten, which is a promising candidate for a plasma-facing material in a future fusion device, tungsten fibre-reinforced tungsten composites (Wf/W) have been developed. As a part of the materials characterisation program on Wf/W, we present the results of fi...
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Personal Name(s): | Gietl, H. (Corresponding author) |
---|---|
Riesch, J. / Coenen, J. W. / Höschen, T. / Linsmeier, Ch. (Corresponding author) / Neu, R. | |
Contributing Institute: |
Plasmaphysik; IEK-4 |
Published in: | Fusion engineering and design, 124 (2017) S. 396 - 400 |
Imprint: |
New York, NY [u.a.]
Elsevier
2017
|
DOI: |
10.1016/j.fusengdes.2017.02.054 |
Document Type: |
Journal Article |
Research Program: |
Methods and Concepts for Material Development |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/16143 in citations.
To overcome the inherent brittleness of tungsten, which is a promising candidate for a plasma-facing material in a future fusion device, tungsten fibre-reinforced tungsten composites (Wf/W) have been developed. As a part of the materials characterisation program on Wf/W, we present the results of first tensile tests of as-fabricated Wf/W in this contribution. The results give insight on the ultimate tensile strength properties and reveal the active toughening mechanisms under tension load within the composite. Fibre bridging, fibre necking as well as fibre pull out were observed. This is leading to the typical pseudo ductile behavior of the composite which is characterized by a rising load bearing capability despite multiple matrix cracks accompanied by non catastrophic crack propagation (in the matrix). The description of the mechanical tests is supplemented by detailed microstructural investigations. |