| Title |
A Study of the Development of a High-Strength Al-Zn Based Alloy for Die Casting 1 |
| Authors |
신상수(Sang Soo Shin); 염길용(Gil Yong Yeom); 김억수(Eok Soo Kim); 임경묵(Kyung Mook Lim) |
| DOI |
https://doi.org/10.3365/KJMM.2010.48.10.936 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
Al-Zn alloys; die casting process; high strength; fine grain size; Lamellar |
| Abstract |
Al-Zn based alloys are the most common types of wrought Al alloys. Although Al-Zn alloys have high strength, they cannot be applied to a conventional casting process. In this study, Al-Zn-based alloys applicable to a die casting process were developed successfully. The developed Al-45 wt% Zn-based alloys showed a fine equiaxed grain structure and high strength. A fine equiaxed grain having an average size of 25 μm was obtained by the die casting process. The UTS and elongation of the new alloy are 475 MPa and ~3.5%, respectively. In addition, we elucidate the effect of a Zn addition on variations in different mechanical properties and the microstructure characteristics of (Al96.3-xZnxCu3Si0.4Fe0.3) x=20, 30, 40, and 45 wt% alloys fabricated by a die casting process. |