Paper Title:
Features of Grain Boundary Character Distributions in a Austenitic Stainless Steel after Cold Rolling with Low Strain Followed by Single and Two-Step Annealing
  Abstract

The grain boundary character distributions (GBCDs) of two 304-type austenitic stainless steel samples, which are cold rolled with the same thickness reduction of 6% and then subjected to different annealing treatments are examined by Electron back-scatter diffraction (EBSD) techniques. The results indicate that, after 6% cold rolling, the two-step annealing (900°C/1 h+1050°C/5 min, Sample B) resulted in a quite different GBCDs compared with that obtained by single-step annealing (1050°C/5 min, Sample A) regardless of nearly the same fractions of S3 boundaries developed in the two samples. It was evidenced that large-sized cluster of grains interfaced by S3n boundaries (S3n CG) emerged in sample B, in which there are moderate preferential grain orientation distribution and {111} grain boundary plane distributions. Further discussions highlighted that, in the case of two-step annealing, the first annealing at relatively low temperature (900°C) for short time (1h) contributes a lot to the final optimization of GBCD and strain induced preferential boundary migration (SIBM) accompanied by multiple twinning via the migration and interactions between mobile S3n boundaries, especially incoherent S3 boundaries, might be the responsible mechanisms.

  Info
Periodical
Materials Science Forum (Volumes 675-677)
Edited by
Yi Tan and Dongying Ju
Pages
571-574
DOI
10.4028/www.scientific.net/MSF.675-677.571
Citation
X. Y. Fang, H. Guo, W. G. Wang, "Features of Grain Boundary Character Distributions in a Austenitic Stainless Steel after Cold Rolling with Low Strain Followed by Single and Two-Step Annealing", Materials Science Forum, Vols. 675-677, pp. 571-574, 2011
Online since
February 2011
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: Sandra Piazolo, David J. Prior, M.D. Holness, Andreas O. Harstad
Abstract:Annealing is an important mechanism of microstructural modification both in rocks and metals. In order to relate directly changes in...
333
Authors: Xin Li Song, Ze Xi Yuan, Juan Jia, Li Xia Fan, Ping He Li
Abstract:The development of texture and grain boundary character are researched for a boron bearing IF steel after recrystallization annealing for...
243
Authors: Yong Jun Lan, C. Pinna
Chapter 24: Welding & Joining
Abstract:The Plane Strain Compression and Static Recrystallisation Textures of BCC Metals Have Been Simulated Using a Coupled 3D Crystal Plasticity...
3040
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: Dmitri A. Molodov
Chapter XIII
Abstract:Recent research on grain boundary migration is reviewed. Novel in-situ measuring techniques based on orientation contrast imaging and the...
247