Abstract
The influence of strain rate and temperature during friction stir processing (FSP) on the texture and tensile behavior of a Mg alloy has been investigated. By varying key processing parameters systematically, i.e. rotation and travel rates of the tool, a series of FSP specimens were prepared with a wide range of thermo-mechanical inputs in terms of the Zener-Hollomon parameter (Z). Neutron diffraction results showed a dramatic change in texture as Z increased. The resulting tensile behavior in the stir zone also illustrates the influence of Z.
| Original language | English |
|---|---|
| Pages (from-to) | 1112-1115 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 63 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 2010 |
Funding
This research was supported by NSF Major Research Instrumentation (MRI) program under contract DMR.0421219. This work has benefited from the use of the Lujan Neutron Scattering Center at LANSCE, which is funded by the US Department of Energy Office of Basic Energy Sciences . Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE contract DE-AC52-06NA25396. This work has also benefited from the Automotive Lightweighting Materials Program , Office of Freedom Car and Vehicle Technologies, Assistant Secretary for Energy Efficiency and Renewable Energy, US Department of Energy, under contract with UT-Battelle, LLC. The authors are grateful to A.D. Frederick, D.E. Fielden and G. Wang for their help during the experiments.
Keywords
- Friction stir processing
- Magnesium
- Tensile behavior
- Texture