Effect of dislocation configuration on Ag segregation in subgrain boundary of a Mg-Ag alloy

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

5 Scopus Citations
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Author(s)

  • Lirong Xiao
  • Xuefei Chen
  • Kang Wei
  • Yi Liu
  • Dongdi Yin
  • Zhaohua Hu
  • Hao Zhou

Detail(s)

Original languageEnglish
Pages (from-to)219-224
Journal / PublicationScripta Materialia
Volume191
Online published8 Oct 2020
Publication statusPublished - 15 Jan 2021
Externally publishedYes

Abstract

Interfacial segregation has been reported to play a critical role in the thermal-mechanical stability of nanocrystalline Mg alloys. Here we report Ag-segregation-assisted formation of nanocrystalline Mg-Ag alloy with high proportion of sub-grain boundaries during conventional rolling. The segregation structure is determined by dislocation configurations and subsequent strain field and misorientation of the sub-grain boundary. It indicates that the alloying elements, which induce <c+a> dislocations, would help to improve the stability of interfaces.

Research Area(s)

  • HAADF-STEM, Interfacial segregation, Mg alloy, Nanocrystallization, Sub-grain boundary

Citation Format(s)

Effect of dislocation configuration on Ag segregation in subgrain boundary of a Mg-Ag alloy. / Xiao, Lirong; Chen, Xuefei; Wei, Kang; Liu, Yi; Yin, Dongdi; Hu, Zhaohua; Zhou, Hao; Zhu, Yuntian.

In: Scripta Materialia, Vol. 191, 15.01.2021, p. 219-224.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review