| Effect of Pr on the grain refinement and mechanical properties of AM50 alloys in as-cast condition |
| Paper ID : 1282-UFGNSM-FULL |
| Authors: |
|
Farzaneh Sadat Teimoory1, M. Emamy2, M. Malekan *2 11439956311 2University of Tehran |
| Abstract: |
| Mg alloys have many applications in different industries due to their high strength to weight ratio such as Aerospace, automotive and even bio materials. The formation of the appropriate structures in matrix from intermetallic compounds during solidification affects in improvement of properties. In this study, the effect of different amount of Pr (0, 0.5, 1.5 %wt) has been investigated on macro/micro structure and strengthening of AM50 alloy. The microstructure and Strengthening of Mg alloys, effect of adding a different percent of Pr has been studied on AM50 alloy in ambient temperature. In order to characterize macro/micro and mechanical properties XRD, OM and SEM Microscopy and tensile test have been used. The reviews of result show that microstructures of AM50 just have presence β in the matrix. The results show that the presence of Pr will lead to interesting changes in the grain size and improvement in mechanical properties. The addition of different amount of Pr decreases the grain size from 80m to 32m in as- cast condition and When Pr is up to 0.5wt.%, the β phase becomes finer, and new needle-like or short-rod shaped intermetallic appear in matrix . The best result in microstructure and mechanical properties achieved with adding 0.5 (wt.) percent of Pr. |
| Keywords: |
| AM50. Pr, as-cast, grain size, mechanical properties. |
| Status : Paper Accepted (Poster Presentation) |
