A review of impact properties of tungsten materials

•Current status of Charpy impact properties of pure and modified W materials are reviewed.•Impact properties of W are dependent on fabrication methods and histories regardless of their major chemical composition.•DBTT and USE of pure W from different production routes could be integratedly understoo...

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Veröffentlicht in:Fusion engineering and design 2018-10, Vol.135, p.196-203
Hauptverfasser: Nogami, Shuhei, Watanabe, Shotaro, Reiser, Jens, Rieth, Michael, Sickinger, Sven, Hasegawa, Akira
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Sprache:eng
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Zusammenfassung:•Current status of Charpy impact properties of pure and modified W materials are reviewed.•Impact properties of W are dependent on fabrication methods and histories regardless of their major chemical composition.•DBTT and USE of pure W from different production routes could be integratedly understood using Hall-Petch type relations. One of the most critical issues affecting tungsten (W) as plasma facing material is ductile-to-brittle transition behavior. It is well known that the microstructure of W materials is influenced by the fabrication methods and histories, which can affect those behaviors. In this paper. the current status of Charpy impact properties (ductile-to-brittle transition temperature (DBTT) etc.) of pure and modified W materials fabricated by several methods and histories are reviewed based on the open literatures and the possibility of integrated interpretation of Charpy impact properties of W materials from different production routes is discussed.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2018.08.001