Interface-dominant multilayers fabricated by severe plastic deformation: Stability under extreme conditions

Nathan A. Mara, Irene J. Beyerlein

Research output: Contribution to journalReview articlepeer-review

31 Scopus citations

Abstract

Over the past 3-5 years, the ability to process interface dominant nanolayered bimetallic composites in bulk quantities has opened new opportunities for investigations into structural material behavior under extreme strains. This article reviews the emergence of mechanically stable, predominant bimetallic interface characters during nanomaterial synthesis via Accumulative Roll Bonding, a severe plastic deformation technique. This processing method itself imposes an extreme condition. We show that the interfaces that are naturally selected by this extreme operation remarkably prove to be stable under exposure to other extreme conditions, including elevated temperatures and ion irradiation. Through control of synthesis pathways, interfaces of the desired atomic structure can be manufactured using scalable thermomechanical processing techniques. This, in turn, opens unprecedented new possibilities for designing bulk materials with interface-dominant properties including enhanced strength, deformability, thermal stability, and radiation damage tolerance.

Original languageEnglish (US)
Article number645
Pages (from-to)265-276
Number of pages12
JournalCurrent Opinion in Solid State and Materials Science
Volume19
Issue number5
DOIs
StatePublished - Oct 1 2015

Bibliographical note

Funding Information:
The authors gratefully acknowledge funding from the Los Alamos National Laboratory Laboratory Directed Research and Development program for support. This work was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science. Los Alamos National Laboratory, an affirmative action equal opportunity employer, is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under contract DE-AC52-06NA25396.

Keywords

  • Bimetal interface
  • Crystal plasticity
  • Deformation twinning
  • Dislocations
  • Elevated temperature stability
  • Mechanical behavior
  • Nanocomposite
  • Radiation damage tolerance
  • Severe plastic deformation
  • Texture

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