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An EBSD Analysis of the Origins of Ridging in AISI 430 Steel Sheets
Journal Materials Science Forum (Volumes 495 - 497)
Volume Textures of Materials - ICOTOM 14
Edited by Paul Van Houtte and Leo Kestens
Pages 173-178
DOI 10.4028/www.scientific.net/MSF.495-497.173
Citation Carlos Sergio da Costa Viana et al., 2005, Materials Science Forum, 495-497, 173
Online since September, 2005
Authors Carlos Sergio da Costa Viana, F.S. Candido, Andre Luiz Pinto
Keywords Electron Backscatter Diffraction (EBSD), Ferritic Stainless, Ridging, Texture
Abstract

In the present work the characterisation of both the microstructure and the microtexture of two ferritic stainless steel sheets - AISI 430 (Fe17% Cr) and AISI 434 (17% Cr, 1% Mo) - known to display different ridging behaviours, was carried out by optical metallography, EBSD and OIM techniques. It was concluded that severe ridging is a consequence of: (a) presence of {111} and {001} colonies of grains alternating throughout the sheet plane; (b) through thickness texture inhomogeneity with layers of {001}<110> oriented large grains of low Rvalues sandwiched between layers of higher R-value textured material.
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