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Synergetic Strengthening by Gradient Structure

  • X. L. Wu*
  • , P. Jiang
  • , L. Chen
  • , J. F. Zhang
  • , F. P. Yuan
  • , Y. T. Zhu*
  • *Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Abstract

Gradient structures are characterized with a systematic change in microstructures on a macroscopic scale. Here, we report that gradient structures in engineering materials such as metals produce an intrinsic synergetic strengthening, which is much higher than the sum of separate gradient layers. This is caused by macroscopic stress gradient and the bi-axial stress generated by mechanical incompatibility between different layers. This represents a new mechanism for strengthening that exploits the principles of both mechanics and materials science. It may provide for a novel strategy for designing material structures with superior properties. © 2014 The Author(s). Published by Taylor & Francis.
Original languageEnglish
Pages (from-to)185-191
JournalMaterials Research Letters
Volume2
Issue number4
Online published2 Jul 2014
DOIs
Publication statusPublished - 2014
Externally publishedYes

Research Keywords

  • Gradient structure
  • Mechanical incompatibility
  • Stress gradient
  • Synergetic strengthening

Publisher's Copyright Statement

  • This full text is made available under CC-BY 3.0. https://creativecommons.org/licenses/by/3.0/

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