Magnesium alloys have become popular alternatives to aluminums and steels for the purpose of vehicle light-weighting. However, Mg alloys are hindered from wider application due to limited ductility as well as poor creep and corrosion performance. Understanding the impact of microstructural features on bulk response is key to improving Mg alloys for more widespread use and for moving towards truly predicting modeling capabilities. This study focuses on modeling the intrinsic features, particularly volume fraction and morphology of beta phase present, of cast Mg alloy microstructure and quantifying their impact on bulk performance. Computational results are compared to experimental measurements of cast plates of Mg alloy with varying aluminum content.
Revised: January 15, 2015 |
Published: September 30, 2014
Citation
Barker E.I., K. Choi, X. Sun, E. Deda, J. Allison, M. Li, and J. Forsmark, et al. 2014.Microstructure Based Modeling of ß Phase Influence on Mechanical Response of Cast AM Series Mg Alloys.Computational Materials Science 92.PNNL-SA-98650.doi:10.1016/j.commatsci.2014.03.010