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cavitation

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003569
EISBN: 978-1-62708-180-1
... Abstract This article considers two mechanisms of cavitation failure: those for ductile materials and those for brittle materials. It examines the different stages of cavitation erosion. The article explains various cavitation failures including cavitation in bearings, centrifugal pumps...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001718
EISBN: 978-1-62708-220-4
.... No material or manufacturing defects were found to explain the different service performance of the two impellers. Microstructure, microhardness and material chemistry are consistent with the specified material. Examination reveals the damage mechanism to be corrosion-enhanced cavitation erosion, the most...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001486
EISBN: 978-1-62708-234-1
... Abstract Cavitation damage of diesel engine cylinder liners is due to vibration of the cylinder wall, initiated by slap of the piston under the combined forces of inertia and firing pressure as it passes top dead center. The occurrence on the anti-thrust side may possibly result from bouncing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0046414
EISBN: 978-1-62708-234-1
... nearly identical conditions, drawing water from an open tank through a standpipe, had no observable failures. Etched micrographs 100x of samples taken from the impellers showed clean, pockmarked, severely eroded surfaces, characteristic of cavitation damage. Investigation also revealed that considerable...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0046418
EISBN: 978-1-62708-234-1
... contributing factors to localization of the cavitation erosion. Recommendations included adopting inspection procedures to ensure that the specified properties of aluminum alloy 6061-T6 were obtained and that the combustion chamber and adjacent components were aligned within specified tolerances. In a similar...
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Published: 01 June 2019
Fig. 3 Pock marks due to cavitation exhibit a flow pattern in the vicinity of the central hub. (0.7×) More
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Published: 01 June 2019
Fig. 1 Typical examples of cavitation damage in service. More
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Published: 01 June 2019
Fig. 2 Typical examples of cavitation damage in service. More
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Published: 01 June 2019
Fig. 1 Aluminum alloy 6061-T6 combustion chamber damaged by cavitation erosion. The chamber rotated in water at moderate speed. (a) Overall view of the chamber. (b) and (c) Micrographs of cross sections of the chamber wall showing typical cavitation damage. 100 and 500x, respectively More
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Published: 01 June 2019
Fig. 1 Breaks in the back wall of impeller I and cavitation pits on the inner surface of the front wall 2 3 × More
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Published: 01 June 2019
Fig. 5 Cavitation pits (←) and porous zones ↘ in an unetched transverse section from an as yet unfractured region of impeller I. 2.5 × More
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Published: 01 June 2019
Fig. 6 Microsection from a cavitation zone. 100 × More
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Published: 01 June 2019
Fig. 1 Water-pump impeller with considerable loss of material from cavitation damage. (a) Photograph of cast bronze impeller. (b) Micrographs of an etched section from the impeller showing a layer of distorted metal grains at the surface subjected to cavitation. 100x More
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Published: 01 June 2019
Fig. 2 Cavitation and thinning of a section from the unmarked sample. ∼ 5 × More
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Published: 01 June 2019
Fig. 5 Oriented creep cavitation and cracking observed in boat sample 12. More
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Published: 01 June 2019
Fig. 6 Advanced and early stage oriented cavitation found in weld metal. More
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Published: 01 December 2019
Fig. 1 A comparison between a typical cavitation pit and erosion assisted degradation [ 7 ] More
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Published: 01 December 2019
Fig. 8 Cavitation effects on pump surface More
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Published: 01 January 2002
Fig. 9 Impeller specimen showing cavitation damage and porous zones. (a) Cavitation pits (top-left arrow) and porous zones (bottom-right arrow) in an unetched transverse section of impeller 1. 2.5×. (b) Microsection from a cavitation zone. Etched with V2A reagent. 100×. Source: Ref 11 More
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Published: 01 January 2002
Fig. 1 Exposure to vibratory cavitation of normalized AISI 1020 steel. (a) Damage after 5 min. (b) Material removal after 10 min More