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Failure analysis of a broken SA564 stainless steel pump shaft

Hussain, P.B. and Shaik, N.B. and Mokhtar, A.A.B. and Bakthavatchalam, B. and Ahmad, F. and Harun, M.S.B. (2021) Failure analysis of a broken SA564 stainless steel pump shaft. International Journal of Materials and Product Technology, 62 (1-3). pp. 152-166.

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Abstract

Shafts are rotating elements that are subjected to torsion and bending moments that cause failures at times leading to personal injury, capacity loss, or poor product quality if basic preventive design actions are not taken. Against this background, this paper describes the failure analysis and root cause of a broken SA564 grade stainless steel pump shaft used in a plant through visual inspection, metallography, X-ray diffraction, scanning electron microscope, chemical analysis, hardness, tensile and non-destructive tests. The results show that creep, fatigue initiation and propagation from defects in the material during the operation were the predominant factors of pump shaft failure. Moreover, the existence of voids, micro-cracks, sensitisation and creeps were also identified on the broken shaft. Overall, the studied broken shaft of the impeller failed due to fatigue, initiated at the fillet radius of the keyway due to the high cyclic stress loading. Copyright © 2021 Inderscience Enterprises Ltd.

Item Type:Article
Impact Factor:cited By 0
Uncontrolled Keywords:Chemical analysis; Creep; Failure analysis; Fatigue of materials; Keyways; Nondestructive examination; Product design; Pumps; Scanning electron microscopy; Stainless steel; Stress analysis, Capacity loss; Cyclic stress loading; Fatigue initiation; Fillet radius; Non-destructive test; Personal injuries; Sensitisation; Visual inspection, Failure (mechanical)
ID Code:23680
Deposited By: Ms Sharifah Fahimah Saiyed Yeop
Deposited On:19 Aug 2021 08:20
Last Modified:19 Aug 2021 08:20

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