Abstract
Uniaxial compression tests were carried out on Nb-1wt%Zr-0.1wt%C alloy at temperature of 1500 and 1600°C and strain rate of 0.1s−1 to study the evolution of dynamic recrystallization with strain. Electron back scatter diffraction was used to quantify the microstructural evolution. Nb-1Zr-0.1C alloy showed a necklace structure at a strain of 0.9 when deformed at 1500°C and at strain of 0.6 when deformed at 1600°C, both at strain rate of 0.1s−1. This suggested the occurrence of dynamic recrystallization. At 1500°C and strain of 0.9 the local average misorientation and the grain orientation spread was low confirming the presence of dynamic recrystallization at this deformation condition. At both 1500 and 1600°C and all measured strains the recrystallized grains had a strong fiber component of 〈001〉.
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