Summary
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1.
Calorizing to a depth of 0.1–0.2 mm produces a sharp reduction in the fatigue strength of carbon steel but has practically no effect on its corrosion-fatigue strength.
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2.
Calorizing to a depth of 0.04–0.05 mm produces a slight reduction in the fatigue strength of steel in air and more than doubles its conventional corrosion-fatigue limit.
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References
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Zamikhovskii, V.S., Pokhmurskii, V.I. & Karpenko, G.V. Effect of calorizing on the fatigue and corrosion-fatigue strength of steel 45. Mater Sci 2, 433–435 (1968). https://doi.org/10.1007/BF00754678
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DOI: https://doi.org/10.1007/BF00754678