Der Spröd-duktil-Übergang in ultrafeinkörnigem Wolfram

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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Bibliographic Details
Format: eBook
Language:German
Published: KIT Scientific Publishing 2023
Series:Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie
Subjects:
Online Access:Open Access: DOAB: description of the publication
Open Access: DOAB, download the publication
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520 |a 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. 
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650 7 |a Mechanical engineering and materials  |2 bicssc 
653 |a kink pair mechanism; Arrhenius activation energy; brittle-ductile transition; ultrafine grained; Kinkenpaarmechanismus; Arrhenius-Aktivierungsenergie; Spröd-duktil-Übergang; ultrafeinkörnig; tungsten; Wolfram 
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