Erosion and microstructure change of materials during disruption-simulation experiments in plasma accelerator

The behaviour of G-4, MPG-6, MPG-8, MIG, MIG-1, SG-T, PG-MS, USB-15 graphites, boron surface-modified MPG-8 and USB-15 graphites, Ni, Fe, Ti, V, Nb, Mo, austenitic and ferritic steels, austenitic steels with Al and Be coatings have been tested by using a high temperature pulsed plasma gun to simulat...

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Bibliographic Details
Published in:Journal of nuclear materials 1995-04, Vol.220, p.934-938
Main Authors: Kalin, B.A., Polsky, V.I., Yakushin, V.L., Virgilev, Yu.S., Vasiliev, V.I., Tserevitinov, S.S.
Format: Article
Language:English
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Summary:The behaviour of G-4, MPG-6, MPG-8, MIG, MIG-1, SG-T, PG-MS, USB-15 graphites, boron surface-modified MPG-8 and USB-15 graphites, Ni, Fe, Ti, V, Nb, Mo, austenitic and ferritic steels, austenitic steels with Al and Be coatings have been tested by using a high temperature pulsed plasma gun to simulate plasma disruption. The heat flux of the hydrogen and deuterium plasma has been 10 to 100 J/cm 2 and pulse durations 25 μs. Material weight loss has been estimated. Structure changes in the surface layer of the metal materials, the influence of microstructure changes on sputtering, blistering and hydrogen permeability have been investigated.
ISSN:0022-3115
1873-4820
DOI:10.1016/0022-3115(94)00647-4