Effect of aging on microstructural development in an Al-Mg-Si alloy processed by high-pressure torsion
- Title
- Effect of aging on microstructural development in an Al-Mg-Si alloy processed by high-pressure torsion
- Author
- Megumi Kawasaki
- Keywords
- SEVERE PLASTIC-DEFORMATION; HIGH-TENSILE DUCTILITY; GRAIN-REFINEMENT; NANOSTRUCTURED METALS; HIGH-STRENGTH; EVOLUTION; NICKEL; ECAP; FLOW
- Issue Date
- 2012-11
- Publisher
- SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
- Citation
- JOURNAL OF MATERIALS SCIENCE 권: 47 호: 22 페이지: 7815-7820
- Abstract
- Experiments were conducted to evaluate the microstructural evolution in a commercial Al-0.6 % Mg-0.4 % Si alloy processed using high-pressure torsion for up to 20 turns. Disks of the alloy were tested in two different conditions: in a solution-treated condition and after a short aging treatment at 523 K. The results show that HPT processing introduces significant grain refinement through HPT processing including a reduction in grain size from similar to 150 A mu m to similar to 720 nm in 1 turn of HPT. The final grain size in this alloy was similar to 250 nm after 20 turns. Some tensile tests were conducted to evaluate the mechanical properties of the alloy at the solution treatment temperature. The results from these tests show that aging at 523 K leads to a small increase in ductility for all tensile samples with a maximum recorded elongation of similar to 230 %.
- URI
- http://link.springer.com.ssl.access.hanyang.ac.kr/article/10.1007%2Fs10853-012-6400-8http://hdl.handle.net/20.500.11754/42364
- ISSN
- 0022-2461
- DOI
- 10.1007/s10853-012-6400-8
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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