It is shown that the slope of a tangent to the fatigue curve can be used to analyze the effect of dispersion of pearlite on the fatigue strength of carbon steel. For a constant thickness of the ferrite-pearlite layer, we established an inversely proportional relationship between the indicated parameter and the density of accumulated dislocations. We also estimated the mechanism of influence of the dispersion of pearlite on the transition from low- to high-cycle fatigue of carbon steel.

中文翻译：

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珠光体分散对碳钢疲劳影响的评价

结果表明，疲劳曲线切线的斜率可用于分析珠光体弥散对碳钢疲劳强度的影响。对于恒定厚度的铁素体-珠光体层，我们建立了指示参数与累积位错密度之间的反比关系。我们还估计了珠光体弥散对碳钢从低周疲劳过渡到高周疲劳的影响机制。