Orientation dependent fracture behavior of nanotwinned copper

Journal Article · Mon Jun 29 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4923398· OSTI ID:22483116

Kobler, Aaron; Hahn, Horst ^[1]; Kübel, Christian ^[2]

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1. Technische Universität Darmstadt (TUD), KIT-TUD Joint Research Laboratory Nanomaterials, 64287 Darmstadt (Germany)
2. Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology (INT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen (Germany)

Columnar grown nanotwinned Cu was tensile tested in-situ inside the TEM in combination with automated crystal orientation mapping scanning transmission electron microscopy to investigate the active deformation mechanisms present in this material. Two tensile directions were applied, one parallel to the twin boundaries and the other perpendicular to the twin boundaries. In case of tensile testing perpendicular to the twin boundaries, the material deformed by detwinning and the formation of new grains, whereas in the parallel case, no new grains were formed and the fracture happened along the twin boundaries and a boundary that has formed during the deformation.

• OSTI ID: 22483116
• Journal Information: Applied Physics Letters, Vol. 106, Issue 26; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COPPER
CRYSTALS
DEFORMATION
FRACTURES
MAPPING
ORIENTATION
TESTING
TRANSMISSION ELECTRON MICROSCOPY