Brittle Fracture of a Roll-Assembly Sleeve Due to Improper Microstructure
A roll assembly consisting of a forged AISI type 440A stainless steel sleeve shrink fitted over a 4340 steel shaft and further secured with tapered keys on opposite ends was crated and shipped by air. Upon arrival, the sleeve was found to have cracked longitudinally between the keyways. A roll manufacturer had successfully used the above procedure for many years to make them. Analysis (visual inspection; 150x micrograph of sections etched with a mixture of 2 parts HNO3, 2 parts acetic acid, and 3 parts HCI; electron microscopy; and stress testing) supported the conclusion that superficial working of the...
Brittle Fracture of a Roll-Assembly Sleeve Due to Improper Microstructure, ASM Failure Analysis Case Histories: Failure Modes and Mechanisms, ASM International, 2019, https://doi.org/10.31399/asm.fach.modes.c0047140
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