Interfacial characterization by TEM and nanoindentation of W-Eurofer brazed joints for the first wall component of the DEMO fusion reactor
| Autor: | María Sánchez, M. Roldán, Joaquín Rams, V. Bonache, Alejandro Ureña, J. de Prado |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Nanostructure Fabrication Mechanical Engineering Intermetallic 02 engineering and technology Welding Nanoindentation Fusion power 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences 7. Clean energy law.invention Mechanics of Materials law 0103 physical sciences Brazing General Materials Science Composite material 0210 nano-technology |
| Zdroj: | Materials Characterization |
| ISSN: | 1044-5803 |
| DOI: | 10.1016/j.matchar.2018.05.035 |
| Popis: | The interfacial characterization of W-Eurofer brazed joints, which could be implemented in the first wall component of the future DEMO nuclear fusion reactor, has been carried out by TEM and nanoindentation. The Eurofer-braze interface is characterized by the formation of two reaction layers formed during the melting stage of the filler in the brazing process, which reported high hardness and modulus values. The obtained microstructure supposes a homogenous transition between the base material and the braze. However, in the W-braze interface a more defined interface is formed, where the presence of an intermetallic transition compound has been identified. The combination of both techniques allows to study the resultant microstructure and to analyze the mechanical response of the phases, which constitute the interface and could be helpful to control the brazing conditions avoiding undesirable brazeability problems. |
| Databáze: | OpenAIRE |
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