光像法に依る等軸金属結晶板の方位決定

抄録

Accurate and rapid determination of determination of orientations of cubic crystal plates and, particularly, strips by the light-figure method has been worked out. Full accounts are given of the procedure for the determination, of the kind and number of applicable light figures or of accurately determinable orientation angles, of the stereographic representation of orientations, and of the accuracy in orientation determination with reference to actual examples of iron and silicon iron strip crystals.
The kind and number of applicable light figures or of accurately determinable orientation angles depend on the crystal orientation to be determined, of which the relationship indicates that the perfect orientation determination can be made for most crystals for which the orientations of the plate normal lie close to the [100], [110] or [111] axes. It is shown that orientations of single crystal strips of pure iron and silicon iron can be determined with an accuracy well within 0.5° by this method.