Strong, Ductile, and Thermally Stable bcc-Mg Nanolaminates

Siddhartha Pathak, Nenad Velisavljevic, J. Kevin Baldwin, Manish Jain, Shijian Zheng, Nathan A. Mara, Irene J. Beyerlein

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Magnesium has attracted attention worldwide because it is the lightest structural metal. However, a high strength-to-weight ratio remains its only attribute, since an intrinsic lack of strength, ductility and low melting temperature severely restricts practical applications of Mg. Through interface strains, the crystal structure of Mg can be transformed and stabilized from a simple hexagonal (hexagonal close packed hcp) to body center cubic (bcc) crystal structure at ambient pressures. We demonstrate that when introduced into a nanocomposite bcc Mg is far more ductile, 50% stronger, and retains its strength after extended exposure to 200 C, which is 0.5 times its homologous temperature. These findings reveal an alternative solution to obtaining lightweight metals critically needed for future energy efficiency and fuel savings.

Original languageEnglish (US)
Article number8264
JournalScientific reports
Volume7
Issue number1
DOIs
StatePublished - Dec 1 2017

Bibliographical note

Publisher Copyright:
© 2017 The Author(s).

Fingerprint

Dive into the research topics of 'Strong, Ductile, and Thermally Stable bcc-Mg Nanolaminates'. Together they form a unique fingerprint.

Cite this