A new model is proposed to account for the occurrence of surface ridging (parallel corrugations) in ferritic stainless steel. In the absence of notable texture component clustering, it is shown that local anisotropy in plastic behaviour can still occur on a scale considerably larger than the grain size. The construction of a simple finite element model incorporating plasticity data from microtexture measurements demonstrates that parallel surface corrugations can be simulated during uniaxial tensile straining. It is shown that the corrugation profile is the result of the superimposition of a number of differential transverse strains that contribute to the overall deformation induced bending.
BETHKEK., HOLSCHERM., and LUCKEK.: Mater. Sci. Forum, 1994, 157-16Z1137–1144.
8.
TAKECHIH., KATOH., SUNAMIT., and NAKAYAMAT.: Trans JIM, 1967, 8, 233 — 239.
9.
HARASEJ., OHTAK., TAKASHITAT., and SHIMIZUR.: Mater. Forum, 1990, 14, 296–303.
10.
KOCKSU. F., KALLENDJ. S., WENKH.-R., ROLLETTA. D., and WRIGHTS. I.: ‘Preferred orientation package — Los Alamos (popLA)’; 1994, Los Alamos, NM, Los Alamos National Laboratory.
11.
SHINDOT. and FURUKAWAT.: Proc. 6th Int. Conf. on ‘Textures of materials’ (ICOTOM6), (ed.NagashimaS.), 846-855; 1981, Tokyo, Iron and Steel Institute of Japan.
12.
HARASEJ., OHTAK., TAKASHITAT., and KAWAMOY.: Proc. Int. Conf. on ‘Stainless steel’, Chiba, Japan, 856-863; 1991, Tokyo, Iron and Steel Institute of Japan.
13.
RAABED.: Mater. Sci. Technol., 1995, 11461-472.
14.
HOLSCHERM. and STAUBUWASSERL.: Proc. Int. Conf. On ‘Innovation stainless steel’, Florence, Italy, October 1993, Associazione Italiana di Metallurgia, 2.339 — 2.344.
15.
VLADC. M., DAHMSM., BUNGEH. J., and HAASEM.: Proc. 8th Int. Conf. on ‘Textures of materials’ (ICOTOM8), (ed. J. S. Kallend and G. Göttstein), 873 — 879; 1988, Warrendale, PA, TMS.
16.
KOIKEM., MAEHARAY., KANEKOK., and FUJIKAWAH.: Proc. Int. Conf. on ‘Stainless steel’, Chiba, Japan, 864-871; 1991, Tokyo, Iron and Steel Institute of Japan.
WITTRIDGEN. J. and KNUTSENR. D.: Proc. Int. Conf. on ‘Thermomechanical processing — theory, modelling and prac-tice’, Stockholm, Sweden, September 1996, Swedish Society of Metals Technology, 390 — 397.
