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중성자회절을 이용한 Zircaloy 의 섬유 및 압정집합조직 해석
이창희,김헌준,이정수,전병칠,호종화,김용채,심해섭,최병훈,성백석 대한금속재료학회(대한금속학회) 1992 대한금속·재료학회지 Vol.30 No.7
For the analysis of the fiber-and sheet-type texture of materials with hexagonal crystal system, two computer programs, TXFIBH and TXSHTH, were developed based on Bunge's series expansion method. The pole figures measured on Zircaloy-4 rod and sheet samples by neutron diffraction were analyzed to obtain the crystal orientation distribution functions and theoretical direct and inverse pole figures. Analytical errors were studied in terms of numbers of input pole figure and degrees of series expansion. Based on ODF, some discussions were made to understand the distinctive features of observed textures.
이창희,김헌준,이정수,전병칠,호종화,성백석,김용채,심해섭,최병훈 대한금속재료학회(대한금속학회) 1991 대한금속·재료학회지 Vol.29 No.8
The elastic compliance and stiffness constants for hexagonal polycrystalline materials with sheet and fiber texture are calculated in Reuss-Voigt-Hill approximation by averaging corresponding properties of the single cystal weighted with the crystallites orientation distribution function(ODF). They depend only on the first five coefficients in the series expansion of ODF for sheet texture and two for fiber texture. Based on the ODF coefficients obtained by neutron diffraction, anisotropy of Young's modulus was estimated for Zircaloy-4 sheet and tube samples as well as a Zircaloy-2 rod sample.