dc.contributor.author | Marinelli, Gianrocco | |
dc.contributor.author | Martina, Filomeno | |
dc.contributor.author | Lewtas, Heather | |
dc.contributor.author | Hancock, David | |
dc.contributor.author | Mehraban, Shahin | |
dc.contributor.author | Lavery, Nicholas | |
dc.contributor.author | Ganguly, Supriyo | |
dc.contributor.author | Williams, Stewart W. | |
dc.date.accessioned | 2020-01-21T11:50:13Z | |
dc.date.available | 2020-01-21T11:50:13Z | |
dc.date.issued | 2019-05-01 | |
dc.identifier.citation | Marinelli G, Martina F, Lewtas H, et al., (2019) Microstructure and thermal properties of unalloyed tungsten deposited by Wire + Arc Additive Manufacture. Journal of Nuclear Materials, Volume 522, August 2019, pp. 45-53 | en_UK |
dc.identifier.issn | 0022-3115 | |
dc.identifier.uri | https://doi.org/10.1016/j.jnucmat.2019.04.049 | |
dc.identifier.uri | https://dspace.lib.cranfield.ac.uk/handle/1826/14973 | |
dc.description.abstract | Tungsten is considered as one of the most promising materials for nuclear fusion reactor chamber applications. Wire + Arc Additive Manufacture has already demonstrated the ability to deposit defect-free large-scale tungsten structures, with considerable deposition rates. In this study, the microstructure of the as-deposited and heat-treated material has been characterized; it featured mainly large elongated grains for both conditions. The heat treatment at 1273 K for 6 h had a negligible effect on microstructure and on thermal diffusivity. Furthermore, the linear coefficient of thermal expansion was in the range of 4.5 × 10−6 μm m−1 K−1 to 6.8 × 10−6 μm m−1 K−1; the density of the deposit was as high as 99.4% of the theoretical tungsten density; the thermal diffusivity and the thermal conductivity were measured and calculated, respectively, and seen to decrease considerably in the temperature range between 300 K and 1300 K, for both testing conditions. These results showed that Wire + Arc Additive Manufacture can be considered as a suitable technology for the production of tungsten components for the nuclear sector. | en_UK |
dc.language.iso | en | en_UK |
dc.publisher | Elsevier | en_UK |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | WAAM | en_UK |
dc.subject | Tungsten | en_UK |
dc.subject | Microstructure | en_UK |
dc.subject | Thermal properties | en_UK |
dc.subject | Nuclear fusion | en_UK |
dc.subject | Thermal conductivity | en_UK |
dc.title | Microstructure and thermal properties of unalloyed tungsten deposited by Wire + Arc Additive Manufacture | en_UK |
dc.type | Article | en_UK |
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