Orientation-dependent grain growth in a bulk nanocrystalline alloy during the uniaxial compressive deformation
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996 (United States)
The microstructural evolution during the uniaxial compression of an as-deposited bulk nanocrystalline (nc) Ni-Fe (average grain size d{approx_equal}23 nm) at ambient temperature was investigated by the high-energy x-ray diffraction (HEXRD) and the transmission-electron microscopy (TEM). HEXRD measurements indicated that the grain growth occurred in the nc Ni-Fe alloy during the uniaxial compression tests and that the grain growth shows orientation dependence, i.e., the grains preferentially grow perpendicular to the loading direction. This preferred grain growth was further confirmed by the TEM observations, indicating that the grains were elongated after the compressive plastic deformation.
- OSTI ID:
- 20779177
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 17 Vol. 88; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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