How would the deformation bands affect recrystallization in pure aluminium?
Author(s)
Luan, Qinmeng
Jiang, Jun
Type
Working Paper
Abstract
Deformation bands (DBs), formed after plastic deformation, are known to have an impact on the recrystallization (RX) process. The exact mechanisms of how DBs influence the grain nucleation and grain growth remain unclear. In this paper, deformed single and multicrystal pure aluminium samples are annealed to explore the likely effects of DBs on the grain nucleation and the subsequent grain growth. Regarding the prediction of the recrystallized (RXed) texture, it is noticeable that the orientations of nucleated grains nearby DB are originated from the orientation in DB. Regarding the nucleated positions, it is demonstrated that potential nucleation sites are more likely located in DBs in comparison with the initial grain boundary. Regarding the rate of RX, the number of nucleated grains is also predicted to have a strong positive correlation with the area fraction of DBs which would consequently affect the kinetics of the grain growth in the deformed microstructure. All the above observations imply that the RX process is strongly controlled by the ensemble characteristics of DBs rather than the initial grain boundaries.
Date Issued
2020-01-30
Citation
2020
Publisher
Elsevier BV
Copyright Statement
© 2020 The Author(s)
Sponsor
AVIC Manufacturing Technology Institute
Engineering & Physical Science Research Council (E
Identifier
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3525137
Grant Number
N/A
EP/R001715/1 / PO 2105860
Publication Status
Published