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Journal Article

Texture evolution in the Fe–30.5Mn–8.0Al–1.2C and Fe–30.5Mn–2.1Al–1.2C steels upon cold rolling


Raabe,  Dierk
Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Souza, F. M., Padilha, A. F., Gutiérrez-Urrutia, I., & Raabe, D. (2016). Texture evolution in the Fe–30.5Mn–8.0Al–1.2C and Fe–30.5Mn–2.1Al–1.2C steels upon cold rolling. Revista Escola de Minas, 69(1), 59-65. doi:10.1590/0370-44672015690122.

Cite as: https://hdl.handle.net/21.11116/0000-0001-B994-7
Crystallographic textures of the austenitic low-density Fe-30.5Mn-8.0Al-1.2C (8Al) and Fe-30.5Mn-2.1Al-1.2C (2Al) (wt.) steels were examined during cold rolling by means of electron backscatter diffraction (EBSD) and electron channeling contrast imaging (ECCI). Random oriented grains orient towards Goss- and brass-components along the α-fiber as the strain increased, with activation of slip, mechanical twinning, and shear banding, for both steels. S- and copper-orientations were also observed in the 8Al steel at 50 reduction. The route of Cu-CuT-Gossbrass texture evolution was found in the 2Al alloy. Cu, Goss, and brass textures occur as a dominant texture in the deformed 8Al alloy. Copper-type texture accompanied with slip at low reduction (20), as well as Cu-type shear bands, and shear banding inside Goss-oriented grains at higher reduction (50), were observed in the 8Al steel. It is suggested that this copper-type rolling texture may be attributed to the Al addition, which contributes to its low twinning activity compared to that in the 2Al alloy. Cu-CuT-brass f.c.c. rolling texture transition to form the Brass-type texture was observed at higher reduction in the 2Al alloy with strong similarity to that found in other Fe-Mn-C system TWIP steels. © 2016, Escola de Minas. All rights reserved.