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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
... of the progress of fatigue cracks. Failure of the one impeller and the cracking of the others were attributed to “low-cycle high-strain fatigue” due to fluctuating circumferential (hoop) stresses. Centrifgual pumps Impellers Stresses 2.5Ni-Cr-Mo Fatigue fracture One impeller of a two-stage...