ホウ化処理鋼のすべり磨耗過程中でのX線的パラメータの変化

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Although the wear characteristics and mechanism of boronized steels have been reported, there is no report in which the X-ray method was applied to study the wear process of boronized steels. The authors have reported in the previous paper that the surface compressive residual stress and half-value breadth changed during the fatigue process. In the present study, the Amsler type wear tests of boronized steels was carried out. The X-ray method was successfilly applied to measure the change in surface residual stress and half-value breadth during the wear process, and the relationship between the change of X-ray parameterand the strucures was inverstigated. THe results obtained are summarized as follows; (1) Boronized steels had higher wear resistance than non-boronized steels. Wear loss was unaffected by the surface compressive residual stress value that was depended on the thickness and the type of boronized layer. (2) As the wear distance became more, the half-value bteadth of X-ray parameter increased. The X-ray method was applied effectively as a nondestructive detecting method of wear damage accumulation. The half-value breath increased corresponding to the extent of work hardening at the area near the wear surface. (3) In those experimental conditions, plastic flow was difficult to occur in the boronized layer. It is considered that when the depth of residual boronized layer become less than 20〜30μm, plastic flow occurs in the matrix under boronized layer.
1985-09-15

ホウ化処理鋼のすべり磨耗過程中でのX線的パラメータの変化

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