Paper Title:
Nucleation in Recrystallization
  Abstract

The nucleation of recrystallization in deformed and annealed metals is reviewed. The main mechanisms are thought to involve the growth of subgrains by low angle boundary (LAGB) migration in an orientation gradient or the strain induced boundary migration (SIBM) of existing boundaries. Although these mechanisms are reasonably well understood, the details of the dislocation recovery mechanisms which are often required before migration can occur, particularly in metals in which recovery is slow, are poorly understood. Complete experimental investigation of the nucleation event requires a 3-d in-situ technique which will resolve dislocations, and this is not currently available. Although recrystallized grains of orientations not in the deformed structure have been reported, there is as yet no substantial evidence or theory to suggest the creation of new orientations by mechanisms other than annealing twinning. It is concluded that further understanding of the deformed state is required before adequate models of nucleation can be formulated and verified.

  Info
Periodical
Materials Science Forum (Volumes 467-470)
Edited by
B. Bacroix, J.H. Driver, R. Le Gall, Cl. Maurice, R. Penelle, H. Réglé and L. Tabourot
Pages
107-116
DOI
10.4028/www.scientific.net/MSF.467-470.107
Citation
J. F. Humphreys, "Nucleation in Recrystallization", Materials Science Forum, Vols. 467-470, pp. 107-116, 2004
Online since
October 2004
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Knut Sjølstad, Knut Marthinsen, Erik Nes
Abstract:In the present work a detailed characterisation of a cold rolled and annealed AA3103- alloy has been carried out. The effect of different...
677
Authors: Egil Fjeldberg, Knut Marthinsen
Abstract:In the present work computer simulations using a 3-D Potts Monte Carlo model are demonstrated and discussed as a tool to study the effects...
1069
Authors: C. Schäfer, Günter Gottstein
Abstract:A refined view of particle stimulated nucleation of recrystallization is presented, which utilizes a combination of advanced modeling tools....
1169
Authors: Olga Sukhopar, Günter Gottstein
Wednesday
Abstract:In the present study, a modified cellular automaton CORe (Cellular Operator for Recrystallization) was used to predict the recrystallization...
455
Authors: Wen Min Shi, Jing Liu, Chang Yi Li
Chapter 3: Iron and Steel
Abstract:The recrystallization behavior of the cold rolled 3%Si nonoriented electrical steel at different temperatures is investigated by...
678