X線による低炭素鋼の塑性疲労に関する研究

概要

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The X-ray observation with diffraction technique was performed of microstructural changes in 0.16% carbon steel during constant cyclic straining of several amplitudes with mean strain at zero. During low-cycle fa a tigue, the integral breadth ratio of X-ray diffraction lines changed in a way different from that found in the case of high-cycle fatigue of an annealed carbon steel. That is, the larger the stain range was, the larger integral breadth it caused. And the series of cyclic straining showed tendency to decrease the integral breadth somewhere after the half-way mark to failure. The made of change in the integral breath was investigated by conducting a profile analysis of the diffraction lines. The particle size and microstrain measured by the analysis were used as the parameters indicating the microstructural changes with a damage fraction. Further studies along these lines are expected to yield significant results in the field of low-cycle fatigue studies.
社団法人日本材料学会の論文
1968-12-15