| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1498858 | Scripta Materialia | 2013 | 4 Pages |
Abstract
Precipitation strengthening in Al–Yb, Al–Zr and Al–Zr–Yb alloys aged isochronally between 100 and 550 °C was investigated. The Al–0.08 at.% Zr–0.03 at.% Yb alloy shows double-peak age strengthening behavior and obtains its second peak hardness of 379 MPa at 475 °C, which illustrates significant precipitation strengthening and thermal stability. The critical coherency transition radius of L12-ordered Al3(Zr,Yb) precipitates is larger than that of Al3Yb. The synergetic effect of Yb and Zr on the precipitation evolution in Al–Zr–Yb is discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Yongzhi Zhang, Wei Zhou, Haiyan Gao, Yanfeng Han, Kai Wang, Jun Wang, Baode Sun, Sunwang Gu, Weiren You,