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

Lirong Xiao; Xuefei Chen; Kang Wei; Yi Liu; Dongdi Yin; Zhaohua Hu; Hao Zhou; Yuntian Zhu

doi:10.1016/j.scriptamat.2020.08.040

Author(s)

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

Detail(s)

Original language	English
Pages (from-to)	219-224
Journal / Publication	Scripta Materialia
Volume	191
Online published	8 Oct 2020
Publication status	Published - 15 Jan 2021
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.scriptamat.2020.08.040 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85092324634&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(a9c782ac-c4f2-4ae1-9c81-7031af77fc24).html

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)

[ RIS ] [ BibTeX ]

Effect of dislocation configuration on Ag segregation in subgrain boundary of a Mg-Ag alloy. / Xiao, Lirong; Chen, Xuefei; Wei, Kang et al.
In: Scripta Materialia, Vol. 191, 15.01.2021, p. 219-224.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Xiao, L, Chen, X, Wei, K, Liu, Y, Yin, D, Hu, Z, Zhou, H & Zhu, Y 2021, 'Effect of dislocation configuration on Ag segregation in subgrain boundary of a Mg-Ag alloy', Scripta Materialia, vol. 191, pp. 219-224. https://doi.org/10.1016/j.scriptamat.2020.08.040

Xiao, L., Chen, X., Wei, K., Liu, Y., Yin, D., Hu, Z., Zhou, H., & Zhu, Y. (2021). Effect of dislocation configuration on Ag segregation in subgrain boundary of a Mg-Ag alloy. Scripta Materialia, 191, 219-224. https://doi.org/10.1016/j.scriptamat.2020.08.040

Xiao L, Chen X, Wei K, Liu Y, Yin D, Hu Z et al. Effect of dislocation configuration on Ag segregation in subgrain boundary of a Mg-Ag alloy. Scripta Materialia. 2021 Jan 15;191:219-224. Epub 2020 Oct 8. doi: 10.1016/j.scriptamat.2020.08.040

Xiao, Lirong ; Chen, Xuefei ; Wei, Kang et al. / Effect of dislocation configuration on Ag segregation in subgrain boundary of a Mg-Ag alloy. In: Scripta Materialia. 2021 ; Vol. 191. pp. 219-224.