エネルギ分散連続 X 線回折法による集合組織をもつ鋼の相定量分析

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X-ray diffraction method is widely used for determining the relative proportions of phases in a multiphase steel specimen. However, the intensities of the particular reflections are influenced by the preferred orientations and it is necessary to use an appropriate method in order to get accurate results when the specimen has preferred orientations in one or more of constituent phases. The continuous X-ray diffraction method with energy analysis system is presented here, in order to determine the volume fractions of α (or α') and γ phases by adequately averaging the intensities of diffraction lines belonging to a large number of diffraction planes with different hkl. The method, so far, has not been investigated for the quantitative phase analysis in textured steels. Results obtained by the method were compared with those obtained by the characteristic X-ray method. The results are as follows : (1) The volume fraction of phases in two-phase synthetic speciments and two-phase stainless steel determined by the continuous X-ray diffraction method agree well with the one by the other methods, and the present method gives a rapid measurement. The determination of volume fractions by the present method, however, is less accurate than the monochromatic one. (2) This continuous X-ray diffraction method is applied to determine the depth-composition profile for the volume fraction of strain induced martensite in cold-worked tube of stainless steel, SUS 304.
社団法人日本鉄鋼協会の論文
1981-09-01

エネルギ分散連続 X 線回折法による集合組織をもつ鋼の相定量分析

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