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Title: Microstructure Based Modeling of β Phase Influence on Mechanical Response of Cast AM Series Mg Alloys

Abstract

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.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1167602
Report Number(s):
PNNL-SA-98650
47721; VT0505000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Computational Materials Science, 92:353-3612
Additional Journal Information:
Journal Name: Computational Materials Science, 92:353-3612
Country of Publication:
United States
Language:
English
Subject:
Cast Magnesium alloys; microstructure; plasticity; Eutectic phase; Volume Fraction; Morphology; Environmental Molecular Sciences Laboratory

Citation Formats

Barker, Erin I., Choi, Kyoo Sil, Sun, Xin, Deda, Erin, Allison, John, Li, Mei, Forsmark, Joy, Zindel, Jacob, and Godlewski, Larry. Microstructure Based Modeling of β Phase Influence on Mechanical Response of Cast AM Series Mg Alloys. United States: N. p., 2014. Web. doi:10.1016/j.commatsci.2014.03.010.
Barker, Erin I., Choi, Kyoo Sil, Sun, Xin, Deda, Erin, Allison, John, Li, Mei, Forsmark, Joy, Zindel, Jacob, & Godlewski, Larry. Microstructure Based Modeling of β Phase Influence on Mechanical Response of Cast AM Series Mg Alloys. United States. https://doi.org/10.1016/j.commatsci.2014.03.010
Barker, Erin I., Choi, Kyoo Sil, Sun, Xin, Deda, Erin, Allison, John, Li, Mei, Forsmark, Joy, Zindel, Jacob, and Godlewski, Larry. 2014. "Microstructure Based Modeling of β Phase Influence on Mechanical Response of Cast AM Series Mg Alloys". United States. https://doi.org/10.1016/j.commatsci.2014.03.010.
@article{osti_1167602,
title = {Microstructure Based Modeling of β Phase Influence on Mechanical Response of Cast AM Series Mg Alloys},
author = {Barker, Erin I. and Choi, Kyoo Sil and Sun, Xin and Deda, Erin and Allison, John and Li, Mei and Forsmark, Joy and Zindel, Jacob and Godlewski, Larry},
abstractNote = {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.},
doi = {10.1016/j.commatsci.2014.03.010},
url = {https://www.osti.gov/biblio/1167602}, journal = {Computational Materials Science, 92:353-3612},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 30 00:00:00 EDT 2014},
month = {Tue Sep 30 00:00:00 EDT 2014}
}