We have investigated an Fe-30Mn-4Si shape memory alloy to clarify the effect, on the bulk texture, of the shear layers resulting of two different thermo-mechanical treatments. RX analysis has shown the existence of texture heterogeneity through the rolled sheets thickness, due to the effect of friction between sheet and rolls. Neutron diffraction reveals that textured layers affect the whole volume. Texture found on the surface of the sheet rolled at 600ºC, is the most favourable for the γ→ε  martensitic transformation witch is the origin of the shape memory effect. Comparing these results with those obtained on sheets rolled at room temperature, we found that shear deformation gradients produce changes on the material bulk texture. Tensile tests induce martensitic transformation initially in those grains favourably oriented. As a result, those favourable orientations disappear in remnant austenite.

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