Tag Archives: strain-life curves

Additional Effects of Sulfur on the Fatigue Properties of Low Alloy Steels

In the previous posting, it was shown that, as a result of the presence of elongated manganese sulfide inclusions, the fatigue properties of low alloy steels can exhibit directionally dependent behavior.  Fatigue properties obtained in a test direction transverse to … Continue reading

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Fatigue Performance As Measured By Fatigue Strength Quenched and Tempered Steels

In a recent posting, a comparison of the fatigue properties for normalized steels (163-259 BHN) showed that the strain-life curves fell within a rather narrow band, especially in the long-life regime.  It was pointed out that, under a circumstance such … Continue reading

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Fatigue Properties of Case-Carburized SAE 4320

Previously, the strain-controlled fatigue properties of the high hardness case and the lower hardness core of carburized low alloy steels were compared.  The properties of the case were developed through simulation by diffusing carbon completely through fatigue specimen blanks. The … Continue reading

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Fatigue Properties of Case-Carburized SAE 8620

In recent postings, the strain-controlled fatigue properties of the high-hardness case and the lower-hardness core of carburized low-alloy steels were compared.  The properties of the case were developed through simulation by diffusing carbon completely through fatigue-specimen blanks. The properties of … Continue reading

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