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Distinguishing between slip and twinning events during nanoindentation of magnesium alloy AZ31

journal contribution
posted on 2016-01-01, 00:00 authored by Tingting Guo, F Siska, Matthew BarnettMatthew Barnett
Nanoindentation was performed in selected grain orientations close to [. 112-0] and [. 101-0] in magnesium alloy Mg-3Al-1Zn. The atomic force microscopy (AFM) and electron backscatter diffraction (EBSD) were used to examine the nanoindentation imprint. Two critical events, yielding and pop-in were observed in the depth-load curves. Slip trace analysis suggests that basal slip is responsible for yielding. The following pop-in events at higher loads are associated with the appearance {. 101-2} twins on the surface. The critical resolved shear stress (CRSS) was estimated to be in the range of 220-400. MPa for the initiation of basal slip.

History

Journal

Scripta materialia

Volume

110

Pagination

10 - 13

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

1359-6462

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2016, Elsevier