An Ideal Ultrafine-Grained Structure for High Strength and High Ductility

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

100 Scopus Citations
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Author(s)

  • C. X. Huang
  • W. P. Hu
  • Q. Y. Wang
  • C. Wang
  • G. Yang

Detail(s)

Original languageEnglish
Pages (from-to)88-94
Journal / PublicationMaterials Research Letters
Volume3
Issue number2
Online published9 Oct 2014
Publication statusPublished - 2015
Externally publishedYes

Link(s)

Abstract

An ideal ultrafine-grained (UFG) microstructure for high strength and high ductility should have short dislocation-slip path to impede dislocation slip and very low dislocation density to ensure more room for dislocation accumulation. Such a microstructure is hard to produce, especially for UFG metals produced by severe plastic deformation techniques. Here, we report an ideal UFG structure produced by reverse transformation of deformation-induced martensite in 304 L austenitic stainless steel. It produced small grains and a high density of nanotwins for both high strength and high ductility. This approach is applicable to face-centered cubic metals with low stacking fault energy.

Research Area(s)

  • Dislocations, Stacking faults, Strength and ductility, Twins, Ultrafine grains

Citation Format(s)

An Ideal Ultrafine-Grained Structure for High Strength and High Ductility. / Huang, C. X.; Hu, W. P.; Wang, Q. Y. et al.
In: Materials Research Letters, Vol. 3, No. 2, 2015, p. 88-94.

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

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