High Strain Rate Superplasticity in Continuous Cast Al-Mg Alloys Prepared via Friction Stir Processing
Friction stir processing (FSP) is very effective in refining the grain size of as-cast alloys. In this work, the effect of five FSP conditions on the high-temperature deformation properties of a continuous cast Al-Mg alloy has been investigated. It was observed that FSP broke down the cast structure and refined the grain size to less than 3 μm, enabling tensile elongation of over 800% at 530 °C with a strain rate of 3 × 10^−2 s^−1.
M. A. Garcia-Bernal et al., "High Strain Rate Superplasticity in Continuous Cast Al-Mg Alloys Prepared via Friction Stir Processing," Scripta Materialia, Elsevier, May 2009.
The definitive version is available at http://dx.doi.org/10.1016/j.scriptamat.2009.01.030
Materials Science and Engineering
Keywords and Phrases
Friction Stir Processing; Grain Refining; Aluminum alloys; Friction stir welding; Superplasticity
Article - Journal
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