| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Light Metal Technology
|
| Presentation Title |
Solidification Evolution, Microstructure and Tensile Properties of Al-Mg-Sc Alloys |
| Author(s) |
Jose Spinelli, Anderson Nunes, Guilherme Gouveia, Leonardo Gomes |
| On-Site Speaker (Planned) |
Jose Spinelli |
| Abstract Scope |
In technical applications that call for a mix of low density and mechanical strength, such as in aeronautical and aerospace sector equipment, aluminum alloys are extremely attractive. Thus, from an economic and environmental perspectives, the search for alloys with higher specific strengths is worthwhile. The goal of this research is to examine the effects of cooling rates on the phase morphology and tensile properties of ternary Al-Mg-Sc alloys (Scalmalloy). The method used to solidify the ternary Al-5, and -10wt% Mg-0.1wt% Sc alloys was the transient upward solidification. This process resulted in a wide range of cooling rates, which led to the development of a microstructural variation along the longitudinal cooling direction and, as a result, an expressive variation of tensile properties. The understanding of cell and dendrite growth was based on the solidification rates. Improvements in tensile properties can be associated with either Mg solution or dendritic/cellular spacing size. |