Abstract
In this study, the method of high-pressure torsion (HPT) was applied for grain refinement of A2024/Al composites. Diffusion bonding was carried out at 773 K for 5 h to form the composite in advance. Disk samples with 10 mm diameter and 1 mm thickness were processed by HPT under a pressure of 6 GPa. The chemical composition of the diffusion treated Al layer was determined to Al-2.5%Cu-1.3%Mg by EDS analysis. Microstructural observations revealed that the grain size was refined to -180 nm in the thickness center and -440 nm in the surface side. Tensile tests showed that the ultimate tensile strength reached 710 MPa with a total elongation of 9%. Extra strengthening was attained by aging at 423 K after HPT processing, leading to an ultimate tensile strength of 760 MPa at the peak-aged condition.
| Original language | English |
|---|---|
| Pages (from-to) | 179-185 |
| Number of pages | 7 |
| Journal | Keikinzoku/Journal of Japan Institute of Light Metals |
| Volume | 67 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Jan 1 2017 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Cite this
Fabrication of high-strength and high-ductility laminated A2024 aluminum alloy/aluminum composite by severe plastic deformation under high pressure. / Masuda, Takahiro; Horita, Zenji.
In: Keikinzoku/Journal of Japan Institute of Light Metals, Vol. 67, No. 5, 01.01.2017, p. 179-185.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Fabrication of high-strength and high-ductility laminated A2024 aluminum alloy/aluminum composite by severe plastic deformation under high pressure
AU - Masuda, Takahiro
AU - Horita, Zenji
PY - 2017/1/1
Y1 - 2017/1/1
N2 - In this study, the method of high-pressure torsion (HPT) was applied for grain refinement of A2024/Al composites. Diffusion bonding was carried out at 773 K for 5 h to form the composite in advance. Disk samples with 10 mm diameter and 1 mm thickness were processed by HPT under a pressure of 6 GPa. The chemical composition of the diffusion treated Al layer was determined to Al-2.5%Cu-1.3%Mg by EDS analysis. Microstructural observations revealed that the grain size was refined to -180 nm in the thickness center and -440 nm in the surface side. Tensile tests showed that the ultimate tensile strength reached 710 MPa with a total elongation of 9%. Extra strengthening was attained by aging at 423 K after HPT processing, leading to an ultimate tensile strength of 760 MPa at the peak-aged condition.
AB - In this study, the method of high-pressure torsion (HPT) was applied for grain refinement of A2024/Al composites. Diffusion bonding was carried out at 773 K for 5 h to form the composite in advance. Disk samples with 10 mm diameter and 1 mm thickness were processed by HPT under a pressure of 6 GPa. The chemical composition of the diffusion treated Al layer was determined to Al-2.5%Cu-1.3%Mg by EDS analysis. Microstructural observations revealed that the grain size was refined to -180 nm in the thickness center and -440 nm in the surface side. Tensile tests showed that the ultimate tensile strength reached 710 MPa with a total elongation of 9%. Extra strengthening was attained by aging at 423 K after HPT processing, leading to an ultimate tensile strength of 760 MPa at the peak-aged condition.
UR - http://www.scopus.com/inward/record.url?scp=85021827815&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85021827815&partnerID=8YFLogxK
U2 - 10.2464/jilm.67.179
DO - 10.2464/jilm.67.179
M3 - Article
AN - SCOPUS:85021827815
VL - 67
SP - 179
EP - 185
JO - Keikinzoku/Journal of Japan Institute of Light Metals
JF - Keikinzoku/Journal of Japan Institute of Light Metals
SN - 0451-5994
IS - 5
ER -