Effect of creep and α-Zr ↔ (α + β)-Zr transition in Zr1Nb cladding on texture analyzed by neutron diffraction

At 700 °C temperature or higher, the texture was formed mainly by reversible α-Zr ↔ (α + β)-Zr phase transition of significant proportion of zirconium crystals and the formation of a new texture was observed: The highest pole density in the TD have been observed for the pyramid (101¯1) followed by the prism (101¯0), which can be the effect of {112¯1}〈1¯1¯26〉 twining. The prism (112¯0) rotates preferentially perpendicular to AD, while the pole density of prism (101¯0) is markedly low.