The effects of heat treatment at temperatures of 1100 °C to 1300 °C on the tensile properties of high-strength drawn tungsten fibres
The design and manufacture of highly heat loaded plasma-facing components (PFCs) represents a major challenge for the realisation of thermonuclear magnetic confinement fusion. The performance of such PFCs is essentially related to the properties of the materials that are used for their design. Curre...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2018-08-01
|
| Series: | Nuclear Materials and Energy |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S235217911730162X |
| _version_ | 1828865880467963904 |
|---|---|
| author | A. v. Müller M. Ilg H. Gietl T. Höschen R. Neu G. Pintsuk J. Riesch U. Siefken J.H. You |
| author_facet | A. v. Müller M. Ilg H. Gietl T. Höschen R. Neu G. Pintsuk J. Riesch U. Siefken J.H. You |
| author_sort | A. v. Müller |
| collection | DOAJ |
| description | The design and manufacture of highly heat loaded plasma-facing components (PFCs) represents a major challenge for the realisation of thermonuclear magnetic confinement fusion. The performance of such PFCs is essentially related to the properties of the materials that are used for their design. Currently, tungsten fibre-reinforced metal matrix composites (MMCs) are regarded as promising advanced materials for PFC applications. In this respect, tungsten fibre-reinforced tungsten is being investigated as an advanced pseudo-ductile plasma-facing material while tungsten fibre-reinforced copper is being developed as an advanced heat sink material. The essential ingredients for the abovementioned MMCs are the fibrous reinforcements which are commercially available drawn tungsten fibres.An important aspect regarding the development of the abovementioned MMCs is the effect of the composite material manufacturing process on the properties of these high-strength reinforcements. During composite material manufacturing experiments it has been found that the mechanical properties of the used W fibres can be deteriorated significantly already at process temperatures of approximately 1200 °C.Against this background, dedicated investigations have been conducted on drawn tungsten fibre samples. In more detail, single fibre tensile tests, microstructural investigations as well as chemical composition analyses have been conducted. All in all, the performed investigations indicate that impurities incorporated into the tungsten fibre material are the underlying reason for the observed deterioration of the mechanical properties. Keywords: tungsten, fibre-reinforced, copper, metal matrix composite, plasma-facing component |
| first_indexed | 2024-12-13T04:38:08Z |
| format | Article |
| id | doaj.art-866802c58dc34b948a776bba94270c38 |
| institution | Directory Open Access Journal |
| issn | 2352-1791 |
| language | English |
| last_indexed | 2024-12-13T04:38:08Z |
| publishDate | 2018-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Materials and Energy |
| spelling | doaj.art-866802c58dc34b948a776bba94270c382022-12-21T23:59:23ZengElsevierNuclear Materials and Energy2352-17912018-08-0116163167The effects of heat treatment at temperatures of 1100 °C to 1300 °C on the tensile properties of high-strength drawn tungsten fibresA. v. Müller0M. Ilg1H. Gietl2T. Höschen3R. Neu4G. Pintsuk5J. Riesch6U. Siefken7J.H. You8Corresponding author.; Max-Planck-Institut für Plasmaphysik, Garching 85748, Germany; Technische Universität München, Garching 85748, GermanyMax-Planck-Institut für Plasmaphysik, Garching 85748, Germany; Technische Universität München, Garching 85748, GermanyMax-Planck-Institut für Plasmaphysik, Garching 85748, Germany; Technische Universität München, Garching 85748, GermanyMax-Planck-Institut für Plasmaphysik, Garching 85748, GermanyMax-Planck-Institut für Plasmaphysik, Garching 85748, Germany; Technische Universität München, Garching 85748, GermanyForschungszentrum Jülich, Jülich 52425, GermanyMax-Planck-Institut für Plasmaphysik, Garching 85748, GermanyLouis Renner GmbH, Dachau 85221, GermanyMax-Planck-Institut für Plasmaphysik, Garching 85748, GermanyThe design and manufacture of highly heat loaded plasma-facing components (PFCs) represents a major challenge for the realisation of thermonuclear magnetic confinement fusion. The performance of such PFCs is essentially related to the properties of the materials that are used for their design. Currently, tungsten fibre-reinforced metal matrix composites (MMCs) are regarded as promising advanced materials for PFC applications. In this respect, tungsten fibre-reinforced tungsten is being investigated as an advanced pseudo-ductile plasma-facing material while tungsten fibre-reinforced copper is being developed as an advanced heat sink material. The essential ingredients for the abovementioned MMCs are the fibrous reinforcements which are commercially available drawn tungsten fibres.An important aspect regarding the development of the abovementioned MMCs is the effect of the composite material manufacturing process on the properties of these high-strength reinforcements. During composite material manufacturing experiments it has been found that the mechanical properties of the used W fibres can be deteriorated significantly already at process temperatures of approximately 1200 °C.Against this background, dedicated investigations have been conducted on drawn tungsten fibre samples. In more detail, single fibre tensile tests, microstructural investigations as well as chemical composition analyses have been conducted. All in all, the performed investigations indicate that impurities incorporated into the tungsten fibre material are the underlying reason for the observed deterioration of the mechanical properties. Keywords: tungsten, fibre-reinforced, copper, metal matrix composite, plasma-facing componenthttp://www.sciencedirect.com/science/article/pii/S235217911730162X |
| spellingShingle | A. v. Müller M. Ilg H. Gietl T. Höschen R. Neu G. Pintsuk J. Riesch U. Siefken J.H. You The effects of heat treatment at temperatures of 1100 °C to 1300 °C on the tensile properties of high-strength drawn tungsten fibres Nuclear Materials and Energy |
| title | The effects of heat treatment at temperatures of 1100 °C to 1300 °C on the tensile properties of high-strength drawn tungsten fibres |
| title_full | The effects of heat treatment at temperatures of 1100 °C to 1300 °C on the tensile properties of high-strength drawn tungsten fibres |
| title_fullStr | The effects of heat treatment at temperatures of 1100 °C to 1300 °C on the tensile properties of high-strength drawn tungsten fibres |
| title_full_unstemmed | The effects of heat treatment at temperatures of 1100 °C to 1300 °C on the tensile properties of high-strength drawn tungsten fibres |
| title_short | The effects of heat treatment at temperatures of 1100 °C to 1300 °C on the tensile properties of high-strength drawn tungsten fibres |
| title_sort | effects of heat treatment at temperatures of 1100 °c to 1300 °c on the tensile properties of high strength drawn tungsten fibres |
| url | http://www.sciencedirect.com/science/article/pii/S235217911730162X |
| work_keys_str_mv | AT avmuller theeffectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT milg theeffectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT hgietl theeffectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT thoschen theeffectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT rneu theeffectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT gpintsuk theeffectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT jriesch theeffectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT usiefken theeffectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT jhyou theeffectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT avmuller effectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT milg effectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT hgietl effectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT thoschen effectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT rneu effectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT gpintsuk effectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT jriesch effectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT usiefken effectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres AT jhyou effectsofheattreatmentattemperaturesof1100cto1300conthetensilepropertiesofhighstrengthdrawntungstenfibres |