Paper Title:
The Development of Homo and Heterogeneous Rolling Microstructures in Rolled Low Carbon and Interstitial-Free Steel
  Abstract

The relationship between the deformation orientation distribution function (ODF) and the primary recrystallised ODF in cold and warm rolled metals, is not a simple mathematical transformation from one to the other, but is through thermally activated processes occurring in the deformation microstructure. In BCC metals the mature rolling microstructure consists of cells, microbands and shear bands on a length scale of fraction of a micron, to deformation and transition bands at the grain scale, when this is of the order of 10 or more microns. There is evidence that grain boundary regions are sometimes distinct from grain interiors. Wherever there is a relatively sharp change in either orientation or microstructure such locations are potential sites of recrystallisation nuclei. In this paper the results of a systematic investigation of the development of microstructure in rolled interstitial free (IF) steel using both transmission and scanning electron microscopy are presented. It is shown how the dislocation mesh structure, formed at the earliest stages of rolling, develops into the mature microstructure consisting of cells, microbands and shear bands. Deformation heterogeneities in the microstructure, known to be of vital significance in the recrystallisation process are associated with the α and γ fibre components of the rolling texture. Shear band thickening and α grain fragmentation are also considered, since both processes can produce recrystallisation nuclei, which in the α fibre case can reduce desirable mechanical properties.

  Info
Periodical
Materials Science Forum (Volumes 558-559)
Edited by
S.-J.L. Kang, M.Y. Huh, N.M. Hwang, H. Homma, K. Ushioda and Y. Ikuhara
Pages
61-70
DOI
10.4028/www.scientific.net/MSF.558-559.61
Citation
B.J. Duggan, M.Z. Quadir, Y.Y. Tse, K. Shen, G.L. Liu, Q.Z. Chen, "The Development of Homo and Heterogeneous Rolling Microstructures in Rolled Low Carbon and Interstitial-Free Steel ", Materials Science Forum, Vols. 558-559, pp. 61-70, 2007
Online since
October 2007
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: M. Díaz-Fuentes, E. Novillo, Amaia Iza-Mendia, Isabel Gutiérrez
Abstract:During annealing of cold rolled steel sheets, the evolution of the texture, to produce the characteristic texture of a recrystallised...
241
Authors: Yong Jin Chen, R. Guo, K. Wan, Q. Shi, B.J. Duggan
Chapter 15: Materials Processing Technology
Abstract:In this study, SEM and Köhlhoff etching were employed to follow the rolling texture and microstructure development in 93/7 brass that had...
1938
Authors: Huan Ping Yang, Fang Zhang, Yu Hui Sha, Xu Zhu, Liang Zuo
Chapter 9: Non-ferrous Metal material, Steel and Alloys Technology
Abstract:The silicon steel was rolled to 95% reduction at 20°C, 400°C and 600°C, and subsequently annealed at different temperatures to obtain...
1729
Authors: Włodzimierz Bogdanowicz, Robert Albrecht, Arkadiusz Onyszko, Jan Sieniawski
II. Young Scientist Session
Abstract:Characterization of structure defects in turbine blades is the basis for determination of the overall crystalline perfections. This work...
63
Authors: Omid Bahman Dehkordi, Ali Mohamad Hadian
Chapter 2: Characterization of UFGNSM
Abstract:Bismuth oxide, due to its low melting point was selected as filler for joining alumina to alumina using Transient Liquid Phase (TLP) method....
136