Microstructural Features of Prematurely Failed Hot-Strip Mill Work Rolls: Some Studies in Spalling Propensity
Work rolls made of indefinite chill double-poured (ICDP) iron are commonly used in the finishing trains of hot-strip mills (HSMs). In actual service, spalling, apart from other surface degeneration modes, constitutes a major mechanism of premature roll failures. Although spalling can be a culmination of roll material quality and/or mill abuse, the microstructure of a broken roll can often unveil intrinsic inadequacies in roll material quality that possibly accentuate failure. This is particularly relevant in circumstances when rolls, despite operation under similar mill environment, exhibit variations in roll life. The paper provides an insight into the microstructural characteristics of...
Amitava Ray, M.S. Prasad, S.K. Dhua, S.K. Sen, S. Jha, Microstructural Features of Prematurely Failed Hot-Strip Mill Work Rolls: Some Studies in Spalling Propensity, ASM Failure Analysis Case Histories: Steelmaking and Thermal Processing Equipment, ASM International, 2019, https://doi.org/10.31399/asm.fach.steel.c9001532
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