Zirconium deformation behavior: insights from EBSD measurements.
- John F.
- Thomas A.
- George C.
- Paul J.
- George T.
The deformation of crystal-bar zirconium was investigated as a function of strain and strain rate through electron back-scattered diffraction (EBSD) characterization. The resultant data provided spatially resolved information on microstructure and texture evolution, individual twin system activity, and subsequent strain partitioning between twinned volume and parent grains. A range of deformation conditions was represented through quasi-static compression, 4-point beam bend tests at room and cryogenic temperature, and Taylor cylinder impact experiments. Effects from the interplay between slip and twinning deformation modes on anisotropic plasticity are considered in order to address the apparent trend toward isotropy at high rates. The role of various length scales on deformation behavior will be considered, along with the implications of these length scales on the assumptions typically invoked for plasticity modeling.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 975143
- Report Number(s):
- LA-UR-01-1010; TRN: US201008%%98
- Resource Relation:
- Conference: Submitted to: Materials Society (TMS) annual meeting, February 11-15, 2001, New Orleans, LA.
- Country of Publication:
- United States
- Language:
- English
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