Ultra-low deformation rate sensitivity of columnar-grained Fe-6.5 wt%Si alloy with 〈100〉 orientation

Outstanding ductility of Fe-6.5 wt%Si alloy can be obtained in a wide deformation rate range (1–125×10−4 s−1) due to the ultra-low deformation rate sensitivity of the columnar-grained alloy with 〈100〉 orientation deformed at 400 °C. This finding provides a high-efficiency approach to prepare Fe-6.5 wt%Si alloy and a guideline for microstructure control.