| Title |
Analysis of the Texture of Zircaloy - 4 Sheet by Crystallite Orientation Distribution function |
| Authors |
류회수(Hwei Soo Ryoo); 황선근(Sun Ken Hwang) |
| Abstract |
In order to analyze the texture variation of Zircaloy-4 sheet the Roe`s method of calculating the crystallite orientation distribution function(CODF) for hcp system was computer programmed. The coefficients W_(lmn) of CODF were calculated from plane-normal distribution pole figures obtained by X-ray diffraction, and the CODF was computed from a series expansion of spherical harmonics. The Legendre function, which is the basis of the harmonics, was computed up to ℓ=16 to account for the symmetry systems of specimen and hcp crystal. A cross-rolling followed by beta-phase heat treatment and furnace cooling increased the density of basal poles along the sheet normal direction and rotated prism poles around the c axis. |