| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1630458 | Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material | 2008 | 4 Pages |
Abstract
An ultra-high strength aluminum alloy was produced by casting and then extruded to rods. The effect of heat treatment on the microstructure and mechanical properties of the alloy was investigated. After single ageing (120°C, 24 h), the tensile strength was 812.4 MPa and the elongation was 6.2%. After retrogression reaging (RRA), the tensile strength was 751.2 MPa and the elongation was 6.4%. The strengthening mechanism is considered as fine grain strengthening, substructure strengthening and dispersion strengthening by Al3(Sc, Zr).
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Xiaoyuan Dai, Changqing Xia, Xiaomin Peng, Ke Ma,