| Title |
The Microstructure Evolution of Zr - 2.5wt% Nb Alloy during Hot Rolling |
| Authors |
최성배(Seong Bae Choi); 권숙인(S . I . Kwun); 황선근(S . K . Hwang); 김명호(M . H . Kim) |
| Abstract |
In this paper, we described the microstructure evolution of Zr-2.5wt% Nb alloy during hot rolling in the α+β phase field after β quenching. The α′and retained β phases produced after β quenching transformed into α′and equilibrium a phases during subsequent hot rolling. The elongated αbecame shorter by penetration of β into a through high angel α/α boundaries as the number of rolling passes increased. Defects introduced during hot rolling process helped β transforming into α′with lower activation energy, and part of β transformed into α′by burst transformation during cooling after hoc rolling. |