Tag Archives: technology

Axial and Bending Fatigue Performance of Shallow-Carburized SAE 8615 Steel

Posted on November 6, 2018 by

The previous blog examined the performance of SAE 8615 simulated-carburized steel in monotonic tensile tests and compared its performance in axial and bending fatigue conditions. This blog will explore the performance of SAE 8615 steel with a shallow-carburized case depth … Continue reading →

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Fatigue Properties of Modified Steels Carburized at High Temperatures

Posted on August 15, 2018 by

The objective of phase XI is to compare the performance of carburized steel in bending and axial fatigue loading conditions. Carburization is a surface heat treatment process which adds carbon to the surface of a material to increase its hardness … Continue reading →

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Neuber Stress Plots

Posted on July 10, 2018 by

This article explains how a “Neuber Stress” is calculated from fatigue test data obtained from un-notched axially-loaded specimen. In the presence of a geometric stress concentration feature on a part, the fatigue life of that part is often under-predicted as … Continue reading →

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Mechanical Properties versus Carburization Depth

Posted on June 12, 2018 by

In this article we will examine the relationship between ultimate tensile strength, fatigue strength, and elongation versus the depth of carburization. The data for this comparison was taken from several iterations discussed in previous articles and shown in Table 1. … Continue reading →

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Does Grain Refining Practice Affect Fatigue Properties?

Posted on August 30, 2011 by

The steel-making practices followed for grain refinement can vary, particularly with respect to the grain refining element selected. Aluminum, niobium and vanadium are all used for grain refinement in medium carbon steels. AISI has examined this issue for SAE 1141 … Continue reading →

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