Journal
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
Volume 44A, Issue 7, Pages 3221-3231Publisher
SPRINGER
DOI: 10.1007/s11661-013-1664-4
Keywords
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Funding
- AQ program for a PhD scholarship
- Light Metals Educational Foundation of Japan
- MEXT, Japan
- Kyushu University
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This research was conducted by the application of high-pressure torsion (HPT) to Al-X wt pct Ag alloys (X = 5, 11, 20). Grain refinement was achieved to the size of similar to 300 nm after HPT processing at room temperature. The aging behavior of the alloys after HPT processing was investigated using Vickers microhardness measurement, tensile testing, scanning electron microscopy, and transmission electron microscopy. This study confirms the dual effect of grain refinement and fine precipitation on the enhancement of the strength. It is also shown that at peak-aged condition, the tensile strength is enhanced while maintaining considerable ductility. (C) The Minerals, Metals & Materials Society and ASM International 2013
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