Metallurgical and Materials Transactions A

, Volume 36, Issue 11, pp 3127–3139 | Cite as

Crystal-plasticity analysis of ridging in ferritic stainless steel sheets

  • Olaf Engler
  • Moo-Young Huh
  • Carlos N. Tomé


The occurrence of ridging in ferritic stainless steel (FSS) sheets is caused by the collective deformation of bandlike clusters of grains with a similar crystallographic orientation. In this article, largescale (1.8×3.6 mm) orientation maps obtained by electron backscattered diffraction (EBSD) are input into a viscoplastic self-consistent polycrystal plasticity model to analyze the strain anisotropy caused by the topographic arrangement of the recrystallization-texture orientations. Two versions of the ridging model were devised: (1) the local dispersion in strain-rate components is analyzed for the full EBSD map, and (2) narrow bands in the EBSD maps aligned parallel to the ridges on the sheet surface are considered, and the variation in macroscopic strain response from band to band is derived. The effects caused by spatial variations in through-thickness strains and in out-of-plane shears are compared and related to ridging. The model is applied to two sheets distinguished by different levels of ridging.


Material Transaction FERRITIC Stainless Steel Intermediate Annealing Strain Anisotropy Ridging Height 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© ASM International & TMS-The Minerals, Metals and Materials Society 2005

Authors and Affiliations

  • Olaf Engler
    • 1
  • Moo-Young Huh
    • 2
  • Carlos N. Tomé
    • 3
  1. 1.the R&D Center BonnHydro Aluminium Deutschland GmbHBonnGermany
  2. 2.the Division of Materials Science and EngineeringKorea UniversitySeoulKorea
  3. 3.the Materials Science and Technology DivisionLos Alamos National LaboratoryLos Alamos

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