Paper Title:
Study of the Texture Formation during Strain Induced Boundary Migration in Electrical Steel Sheets
  Abstract

Texture formation through strain induced boundary migration (SIBM) was investigated. Temper rolling reduction before final annealing for SIBM was varied between 0 and 26% and grain sizes and textures were measured using EBSD. In the specimen which was temper rolled to 5%, in which grain growth by SIBM occurred most efficiently, a strong Goss component (which was a minor component after rolling), developed during annealing. From the EBSD image quality analysis, it was found that stored energy increased significantly in the Goss component with strain (from 5 to 9 %), whereas it was always relatively small in the D-Cube component ({001}<110>), compared to Goss and g-fibre components. Based on these results, a mechanism of grain growth by SIBM was suggested. Texture evolution during annealing could thus be explained by the hypothesis, speculated from the analysis of orientation stability, that D-Cube grains are associated with more homogeneous dislocations distributions than Goss grains, in which the co-existence of high and low dislocation density zones could favour grain growth by SIBM.

  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
893-898
DOI
10.4028/www.scientific.net/MSF.467-470.893
Citation
K. Murakami, J. Tarasiuk, H. Réglé, B. Bacroix, "Study of the Texture Formation during Strain Induced Boundary Migration in Electrical Steel Sheets ", Materials Science Forum, Vols. 467-470, pp. 893-898, 2004
Online since
October 2004
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$32.00
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