Prediction of Ridging by 3-Dimensional Texture in Ferritic Stainless Steels

Abstract:

Experimental and numerical investigations of the ridging in ferritic stainless steels were presented in this paper. Two kinds of ferritic stainless steels exhibiting different levels of ridging were selected as model materials. The measured roughness of the uniaxially elongated specimens up to 15% in rolling direction (RD) was compared to the prediction using a rate-dependent crystal plasticity FEM (CPFEM). Initial textures of the two materials on 5 equi-spaced sequential RD planes were obtained by EBSD measurement. The initial textures were utilized as input data for the constitutive parameters of the crystal plasticity. Measured respective single planar textures were collected all together so that the 5-layer textures complete 3-dimensional structure and they were mapped onto the FE mesh. Ridging profiles predicted by the CPFEM using both every single layer texture and multilayer texture were compared to the experimental results. Predicted ridging profile of a material exhibiting weak ridging by using 5-layer EBSD mapping was in good agreement with the experimental result. On the other hand, prediction by using only single layer texture was efficient to estimate the ridging in a material exhibiting severe ridging due to the elongated cluster of analogous orientations along RD.

• Periodical: Key Engineering Materials (Volumes 622-623)
• Pages: 72-76
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.622-623.72
• Online since: September 2014
• Authors: Yang Jin Chung, Deok Chan Ahn, Frédéric Barlat, Myoung Gyu Lee*
• Keywords: Crystal Plasticity, Ferritic Stainless Steel, Finite Element Method (FEM), Ridging

References

[1] C. S. da Costa Viana et al., 2006, Analysis of ridging in three ferritic stainless steel sheets, Materials Science and Technology, Vol 22, No. 3, pp.293-300.

DOI: 10.1179/026708306x81531

[2] R. Becker, 1997, Effects of strain localization on surface roughening during sheet forming, Acta Mater., Vol 46, p.1385~1401.

DOI: 10.1016/s1359-6454(97)00182-1

[3] Y.G. Huang, 1991, A user-material subroutine incorporating single crystal plasticity in the ABAQUS finite element program. Mechanical Report 178, Division of Engineering and Applied Sciences, Harvard University.

[4] H-J Shin, J-K An, S.H. Park, D.N. Lee, 2003, The effect of texture on ridging of ferritic stainless steel, Acta Mater., Vol 51, p.4693~4706.

DOI: 10.1016/s1359-6454(03)00187-3

[5] P.D. Wu, 2006, Analysis of ridging in ferritc stainless steel sheet, Mat. Sci. Eng. A, Vol 423, p.300~305.

[6] Z. Zhao, R. Radovitzky, 2004, A study of surface roughening in fcc metals using direct numerical simulation, Acta Mater. Vol 52, p.5791~5804.

DOI: 10.1016/j.actamat.2004.08.037

[7] H. Chao, 1967, The mechanism of ridging in ferritic stainless steels, Trans. ASM, Vol 60, p.37~50.

[8] R.N. Wright, 1972, Anisotropic plastic flow in ferritic stainless steels and the Roping, phenomenon, Metall. Trans. Vol 3, pp.83-91.

DOI: 10.1007/bf02680588

[9] H. Takechi, 1967, The mechanism of ridging formation in 17%-Chromium stainless steel sheets, Trans. Jap. Inst. Met., Vol 8, p.233~239.

DOI: 10.2320/matertrans1960.8.233

[10] Y. Chung, M-G. Lee, F. Barlat, D.C. Ahn, 2011, Experimental and Numerical Investigation of Surface Roughness in Ferritic Stainless Steel, Steel Research International 2011, Special Edition, p.808~813.