冷間圧延用補強ロールスリーブにおける転動疲労被害のX線的観察 : X線応力測定特集号

概要

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In order to detect the rolling contact fatigue damage, the changes of the diffraction line width within the surface layer of the roll sleeve served for cold strip mill has been investigated by X-ray back reflection method. The results are as follows ; (1) The fiber texture exists within the surface layer of about 60μ thickness. And, some ups and downs appear in the distribution curve of values of diffraction line width within the range of about 4 mm depth from the surface. (2) On the occasion of giving a dressing on sleeve surface, if the thickness which is removed by each dressing was smaller than the thickness of range which is occupied by rolling contact fatigue damage, the becoming shallow of the depth of maximum damage follows in consequence of the accumulation of damage. (3) The shape of the distribution curve of values of diffraction line width is phenomenologically understood as the results of the composition of each contribution due to fiber texture, accumulated fatigue damage and original crystal structure of this material. (4) The X-ray back reflection method applied to the surface during the successive etching may be utilized as semi-non-destructive detection of the rolling contact fatigue damage within the surface layer of roll sleeve.
社団法人日本材料学会の論文
1962-11-15