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Mechanical characterization of grain boundaries using nanoindentation

Authors
Journal
Current Opinion in Solid State and Materials Science
1359-0286
Publisher
Elsevier
Identifiers
DOI: 10.1016/j.cossms.2014.05.002
Keywords
  • Nanoindentation
  • Grain Boundaries
  • Hardness
  • Indentation Stress–Strain Curves
  • Pop-Ins
Disciplines
  • Design

Abstract

Abstract Grain boundaries and other mesoscale interfaces play an important role in controlling macroscale mechanical properties of various hierarchical materials needed for advanced technologies. Recent enhancements in both instrumentation and data analyses protocols have demonstrated the tremendous potential of nanoindentation as a high-throughput technique for robust and quantitative assessment of the mechanical role of these mesoscale interfaces. These new protocols are geared to address some of the most critical gaps impeding the efforts aimed at the accelerated and cost-effective design and development of new and improved materials. This review summarizes recent advances and identifies specific research directions that are likely to produce the maximum benefit and impact in these pursuits.

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