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Der Spröd-duktil-Übergang in ultrafeinkörnigem Wolfram

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High brittle-ductile transition temperatures preclude the use of conventionally manufactured tungsten (W) as a structural material. Ultrafine grained (UFG) W materials, however, exhibit the brittle-ductile transition at very low temperatures and consequently exhibit room-temperature ductility. The c...

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Bibliografische gegevens
Hoofdauteur: Bonnekoh, Carsten (auth)
Formaat: Elektronisch Hoofdstuk
Gepubliceerd in: KIT Scientific Publishing 2023
Reeks:Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie 118
Onderwerpen:
Mechanical engineering & materials
kink pair mechanism; Arrhenius activation energy; brittle-ductile transition; ultrafine grained; Kinkenpaarmechanismus; Arrhenius-Aktivierungsenergie; Spröd-duktil-Übergang; ultrafeinkörnig; tungsten; Wolfram
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Omschrijving
Samenvatting:High brittle-ductile transition temperatures preclude the use of conventionally manufactured tungsten (W) as a structural material. Ultrafine grained (UFG) W materials, however, exhibit the brittle-ductile transition at very low temperatures and consequently exhibit room-temperature ductility. The correlative microstructure analysis revealed a strong correlation between the transition temperature and the mean grain boundary spacing along the crack front.
Fysieke beschrijving:1 electronic resource (394 p.)
ISBN:KSP/1000153067
Toegang:Open Access

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