Anzeige
Erschienen in:
2006 | OriginalPaper | Buchkapitel
Fracture Toughness Investigations of Severe Plastic Deformed Tungsten Alloys
verfasst von : M. Faleschini, W. Knabl, R. Pippan
Erschienen in: Fracture of Nano and Engineering Materials and Structures
Verlag: Springer Netherlands
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Tungsten and several W-alloys are widely used in high temperature applications. They offer high melting points, low vapour pressures, good thermal conductivity, high erosion resistance and good thermoshock properties. These properties are necessary and essential in future applications like fusion reactors. Like other bcc materials tungsten shows a DBTT (ductile-to-brittle transition temperature) which is very dependent on its processing and impurities. This complicates the machining (turning etc.) of complex parts. Thus a low brittleness is essential and desired. In contrast to usual widely used deforming techniques (rolling, drawing etc.) Severe Plastic Deformation (SPD) is not only capable of increasing the tensile strength and hardness of a material, it also can increase its ductility.