Dislocation–twin interaction mechanisms for ultrahigh strength and ductility in nanotwinned metals

Ultrafine polycrystalline metals containing nanotwins exhibit simultaneous ultrahigh strength and ductility. We study the plastic deformation of such materials through molecular dynamics simulations. Based upon these simulations, we trace the sequence of dislocation events associated with the initia...

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Veröffentlicht in:	Acta materialia 2009-09, Vol.57 (15), p.4508-4518
Hauptverfasser:	Wu, Z.X., Zhang, Y.W., Srolovitz, D.J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Dislocations Exact sciences and technology Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Molecular dynamics simulations Plastic deformations Twins
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