Failure Analysis of a Conveyor Belt Rail (Tripper) of Mineral-Reference-Cited by-同舟云学术

Failure Analysis of a Conveyor Belt Rail (Tripper) of Mineral

Published:2023 Issue: Volume: Page:64-69
ISSN:
Container-title:Proceedings of the XV Ibero-American Congress of Mechanical Engineering
language:
Short-container-title:

Author:

Fosca Carlos

Abstract

AbstractA failure analysis of a fractured rail corresponding to a railway conveyor belt (Tripper) that operated in service for two years has been carried out. A visual inspection, chemical composition analysis, metallographic analysis, hardness and microhardness measurements were carried out on the failed piece. The rail was made of 0.89% C carbon steel and presented a decarburized area on the running surface, with strong plastic deformation due to the operation and work hardened. The metallurgical root cause is associated with the presence of pro-eutectoid ferrite and non-metallic inclusions that have been severely deformed by rolling stresses, generating a weak continuous region that nucleated rolling contact fatigue cracks (RCF) and accelerated the formation of a longitudinal crack that propagated vertically (vertical split head) as a consequence of other possible material defects.

Publisher

Springer International Publishing

Link

https://link.springer.com/content/pdf/10.1007/978-3-031-38563-6_10

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