Controlling Factors for the Brittle-to-Ductile Transition in Tungsten Single Crystals

Materials performance in structural applications is often restricted by a transition from ductile response to brittle fracture with decreasing temperature. This transition is currently viewed as being controlled either by dislocation mobility or by the nucleation of dislocations. Fracture experiment...

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Veröffentlicht in:	Science (American Association for the Advancement of Science) 1998-11, Vol.282 (5392), p.1293-1295
Hauptverfasser:	Gumbsch, Peter, Riedle, Joachim, Hartmaier, Alexander, Fischmeister, Hellmut F.
Format:	Artikel
Sprache:	eng
Schlagworte:	Activation energy Applied sciences Climate Condensed matter: structure, mechanical and thermal properties Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder Cross-disciplinary physics: materials science rheology Crystals Degassing of metals Ductility Energy Exact sciences and technology Fatigue, brittleness, fracture, and cracks Fracture strength Loading rate Low temperature Materials science Mechanical and acoustical properties of condensed matter Mechanical properties of solids Metals Metals (Materials) Metals. Metallurgy Mobility Nucleation Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Research Methodology Room temperature Single crystals Superplasticity Temperature dependence Toughness Tungsten
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