ASM Failure Analysis Case Histories: Steelmaking and Thermal Processing Equipment
Metallurgical Investigation of a Prematurely Failed Roller Bearing Used in the Support and Tilting System of a Steel Making Converter Used in an Integrated Steel Plant
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Published:2019
Abstract
An extensive metallurgical investigation was carried out on samples of a failed roller bearing from the support and tilting system of a basic oxygen furnace converter used in the steel melting shop of an integrated steel plant. The converter bearing was fabricated from low-carbon, carburizing grade steel and had failed in service within a year of fitting to a repaired shaft. Microscopic observations of both the broken roller and inner-race samples revealed subsurface cracking and preponderance of brittle oxide and other macroinclusions. Electron probe microanalysis studies confirmed that the brittle oxides that formed stringers were alumina, and the other...
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Member Sign InAmitava Ray, S.K. Dhua, K.B. Mishra, S. Jha, Metallurgical Investigation of a Prematurely Failed Roller Bearing Used in the Support and Tilting System of a Steel Making Converter Used in an Integrated Steel Plant, ASM Failure Analysis Case Histories: Steelmaking and Thermal Processing Equipment, ASM International, 2019, https://doi.org/10.31399/asm.fach.steel.c9001645
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