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Effect of the Aging Temperature of Steel on the Parameters of Fatigue Resistance and Microstrain

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This metallurgy paper examines microplastic strain in maraging steel as a mechanical engineering phenomenon related to fatigue resistance. It has no relevance to environmental microplastic pollution or human health.

The interrelation of the parameters of microplastic strain, the slope of the left-hand branch of the fatigue curve, and the fatigue limit of a maraging steel is studied. The growth in the microplastic strain is shown to match the growth in the fatigue limit and the decrease in the slope of the left-hand branch of the fatigue curve. The strength of the steel decreases with decrease in the temperature of post-quenching aging.

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