3%食塩水中におけるS45C調資材の疲労挙動に関する統計的性質

概要

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In order to study the statistical properties of the corrosion fatigue process, rotating bending fatigue tests of heat-treated 0.45% C steel smooth specimens were carried out in 3% NaCl solution. The emphasis is to perform the successive observations by the plastic replica method. The results show that the initiation life distribution of a crack from a corrosion pit is expressed by the two- and three-parameter Weibull distributions for high and low stress ranges, respectively. The crack length distribution is expressed by the three-parameter Weibull distribution with the exception of the distribution just before the fracture in a low stress range. Moreover, the effect of periodic plastic replications on corrosion fatigue behavior was statistically investigated.
一般社団法人日本機械学会の論文
1991-11-25