Handbook of Case Histories in Failure Analysis
Construction, Mining, and Agricultural Equipment
-
Published:2019
Abstract
In this article, we report the outcome of an investigation made to uncover the premature fracture of crusher jaws produced in a local foundry. A crusher jaw that had failed while in service was studied through metallographic techniques to determine the cause of the failure. Our investigation revealed that the reason for the fracture was the presence of large carbides at the grain boundaries and in the grain matrix. This led to the formation of microcracks that propagated along the grain boundaries under in-service working forces. It is also believed that the precipitation of carbides at the grain boundaries may have occurred because of improper heat treatment, but not because of a deficiency in composition.
Construction, Mining, and Agricultural Equipment, Handbook of Case Histories in Failure Analysis, Vol 3, Edited By Larry Berardinis, ASM International, 2019
Download citation file:
October 16-19 | Detroit, Michigan
Keep up to date with the latest materials and processing technologies. Register today for IMAT 2023 & Heat Treat 2023!