Size Effects on the Strength of Metals

Xiaoxu Huang

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The grain size effect and the specimen size effect on the strength of metals are briefly reviewed with respect to their history and current status of research. It is revealed that the fundamental strengthening mechanisms responsible for these two types of size effect are to increase the resistance to dislocation motion and to dislocation generation, respectively. It is shown that both strengthening mechanisms take place in some nanostructured metals, which leads to a suggestion to use these two mechanisms for optimizing the strength and ductility of nanostructured metals. This suggestion is verified by some results obtained in nanostructured pure aluminum.
Original languageEnglish
JournalJinshu Xuebao/ Acta Metallurgica Sinica
Volume50
Issue number2
Pages (from-to)137-140
Number of pages4
ISSN0412-1961
DOIs
Publication statusPublished - 2014

Keywords

  • METALLURGY
  • PLASTIC-DEFORMATION
  • GRAIN-SIZE
  • PETCH RELATION
  • FLOW-STRESS
  • SCALE
  • CRYSTALS
  • ALUMINUM
  • WHISKERS
  • COPPER
  • strength of metal
  • grain size effect
  • specimen size effect
  • nanostructured metal
  • strengthening mechanism

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