Deuterium blistering in tungsten and tungsten vanadium alloys
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Abstract |
In order to evaluate D blistering behavior in W based plasma facing materials, rolled W and different grades of W-V targets were exposed to high flux of 1.2 × 1024 m−2 s−1, low energy (38 eV) D plasma at two different surface temperatures. The blistering behavior was investigated by means of scanning electron microscopy, accompanied by electron back-scattering diffraction. Highest numbers of blisters were observed on the surface of rolled tungsten. The addition of V precursor to W suppressed D blister formation. In the case of W-V alloys, comparatively submicron V-containing materials have shown high tendency but small size blisters formation than micron V-containing samples. A high density of blisters was observed near the (111) plane on the surface of both V-containing alloys. Nano-sized blisters were also observed on V enriched surface. |
Year of Publication |
2016
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Journal |
Fusion Engineering and Design
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Volume |
107
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Number of Pages |
25-31
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Date Published |
06/2016
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DOI | |
PId |
8bab1f7dc731974d8c52f57de667c458
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Alternate Journal |
Fusion Eng. Des.
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Label |
OA
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Attachment | |
Journal Article
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