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Decarburization is a process which can increase the fatigue limit of the material in case of cyclic loading.

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in Casting-Forming-Welding II by (119k points)
Decarburization is a process which can increase the fatigue limit of the material in case of cyclic loading.

(a) True

(b) False

This question was posed to me in an interview for internship.

Origin of the question is Metallurgical Aspects topic in chapter Mechanical Working of Metals of Casting-Forming-Welding II

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The correct choice is (b) False

Easy explanation: In case of cyclic loading, decarburization is a process which is defined as the depletion of carbon from the surface of steel alloy. It can significantly reduce the fatigue limit of the steel material. For testing the materials, a batch of similar specimens is selected and then the fatigue strength is determined by considering free surface of the material.

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