Grain boundary formation by remnant dislocations from the de-twinning of thin nano-twins
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 98-101 |
Journal / Publication | Scripta Materialia |
Volume | 100 |
Online published | 14 Jan 2015 |
Publication status | Published - 15 Apr 2015 |
Externally published | Yes |
Link(s)
Abstract
We report a grain boundary formation mechanism in face-centred cubic metals with low stacking fault energies. Severe plastic deformation produces primary nano-twins with a twin boundary spacing of several nanometres, followed by secondary twinning through the activation of Shockley partial dislocations. The partial dislocations interact with primary twin boundaries, resulting in de-twinning of the primary twins and producing very high densities of sessile dislocations. The accumulation of these dislocations produces new grain boundaries with neighbouring grains having similar orientations.
Research Area(s)
- De-twinning, Grain boundary, Grain refinement, Steel, Twinning
Citation Format(s)
Grain boundary formation by remnant dislocations from the de-twinning of thin nano-twins. / Cao, Y.; Wang, Y.B.; An, X.H. et al.
In: Scripta Materialia, Vol. 100, 15.04.2015, p. 98-101.
In: Scripta Materialia, Vol. 100, 15.04.2015, p. 98-101.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review