Because the mechanical behavior of metals with internal structures on a nanoscale is currently a hot research topic. Our work generated interest because many groups are trying to understand and use nanostructured materials.

  Does it describe a new discovery or a new methodology that's useful to others?

Yes. We showed one methodology that was not used for nanomaterials before and discovered that such an approach can be highly effective and practically useful. A number of researchers worldwide are now using similar strategies to improve the properties of nanostructured and amorphous alloys. For example, we have seen the use of bimodal or multi-modal grain structures and a second phase such as (sometimes in situ formed) ductile particles or dendrites.

  Could you summarize the significance of your paper in layman's terms?

Our work is an example for showing the benefits of tailoring the structure of metals on a nanoscale. By taking advantage of the extra room offered by the initial nanoscale crystals, great mechanical properties can be achieved. We showed one specific example of high ductility while maintaining the high strength of nanomaterials. This makes nanostructured metals attractive for structural applications.

  How did you become involved in this research?

Probing into the structure-property relationship of novel materials has long been the research focus of our group.

En (Evan) Ma
Professor
Department of Materials Science and Engineering
Johns Hopkins University
Baltimore, MD, USA