TY - JOUR
T1 - Enhancement of strength and ductility of Al-Ag alloys processed by high-pressure torsion and aging
AU - Lee, Seungwon
AU - Horita, Zenji
N1 - Funding Information:
One of the authors (SL) would like to thank the AQ program for a PhD scholarship. This work was supported in part by the Light Metals Educational Foundation of Japan, in part by a Grant-in-Aid for Scientific Research from the MEXT, Japan, in innovative Areas ‘‘Bulk Nanostructured Metals,’’ and in part by the Kyushu University Interdisciplinary Programs in Education and Projects in Research Development (P&P).
PY - 2013/7
Y1 - 2013/7
N2 - 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 ∼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.
AB - 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 ∼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.
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U2 - 10.1007/s11661-013-1664-4
DO - 10.1007/s11661-013-1664-4
M3 - Article
AN - SCOPUS:84893700538
SN - 1073-5623
VL - 44
SP - 3221
EP - 3231
JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
IS - 7
ER -