A Research on Development of 3-dimensional Non-destructive Analysis for Preferential Texture by X-ray Topography

本文介绍了具有优先取向织构的晶体材料无损分析方法的基础研究结果。x射线形貌法三维晶体组织分析系统的建立。提出了一种改进的劳厄法，用于无损地获取单向取向晶体的织构信息。定向晶体的x射线照片可以用来自远离晶体表面的白色辐射源的几乎平行的光束来拍摄。采用窄长缝衍射系统。单向凝固织构的无损分析采用开式、凸模连铸（大野带铸）工艺生产的铸铝带。强烈定向的纹理显示出清晰的“巷线”。从破坏性方法中获得的纹理信息与图案变化之间存在相关性。

A result of a basic research to develop non-destructive analytic method for crystalline material with preferential oriented texture is presented as follows.1. Development of the analytic system of 3-dimensional crystalline texture by x-ray topographic method.A modified Laue method is used for obtaining nondestructively the information about the unidirectionally oriented crystalline texture.X-ray photographs of oriented crystals can be made with nearly pararrel beams from a point source of white radiation located far from the surface of the crystal itself. Diffraction system with a narrow long slit system was employed.2. Non-destructive analysis of the unidirectionally solidified textureCast aluminum strips produced using the open type, heted mold continuous casting(Ohno Strip Casting)process was used. A strongly oriented texture shows clear "Lane lines". There is a correlation between change in pattern and texture informations obtained from the destructive methods..