A machine learning approach for engineering bulk metallic glass alloys

Logan Ward, Stephanie C. O'Keeffe, Joseph Stevick, Glenton R. Jelbert, Muratahan Aykol, Chris Wolverton*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Bulk metallic glasses (BMGs) are a unique class of materials that are gaining traction in a wide variety of applications due to their attractive physical properties. One limitation to the wide-scale use of these materials is the lack of predictable tools for understanding the relationships between alloy composition and ideal properties. To address this issue, we developed a framework for designing metallic glasses using machine learning (ML) models that predict three key properties of candidate BMG compositions: ability to exist in an amorphous state, critical casting diameter (Dmax), and supercooled liquid range (ΔTx). Our models take only the composition of the alloy as input, and were created from a database of more than 8000 metallic glass experiments assembled from several dozen papers and handbooks. We employed these ML models to optimize the properties of existing commercial alloys and found, experimentally, several of our ML-predicted compositions can form glasses and exceed existing alloys in one of our two design variables, ΔTx.

Original languageEnglish (US)
Pages (from-to)102-111
Number of pages10
JournalActa Materialia
Volume159
DOIs
StatePublished - Oct 15 2018

Keywords

  • Bulk metallic glass
  • Machine learning
  • Materials design

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

Fingerprint Dive into the research topics of 'A machine learning approach for engineering bulk metallic glass alloys'. Together they form a unique fingerprint.

Cite this