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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0047220
EISBN: 978-1-62708-220-4
...Abstract Abstract Two oil-pump gears broke after four months of service in a gas compressor that operated at 1000 rpm and provided a discharge pressure of 7240 kPa (1050 psi). The compressor ran intermittently with sudden starts and stops. The large gear was sand cast from class 40 gray iron...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001575
EISBN: 978-1-62708-217-4
...Abstract Abstract An oil scavenge pump was found to have failed when a protective shear neck fractured during the start of a jet engine. Visual inspection revealed that the driven gear in one of the bearing compartments was frozen as was the corresponding drive gear. Spacer wear and thermal...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001592
EISBN: 978-1-62708-228-0
...Abstract Abstract Sucker-rod pumps are operating in very aggressive environments in oil well production. The combined effect of a corrosive environment and significant mechanical loads contribute to frequent cases of failure of the rod string during operation. Standards and recommendations have...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0046242
EISBN: 978-1-62708-236-5
..., producing chips that eventually overstressed the gear, causing failure. Because the oil circulation system was not operating properly, metal chips were not removed from the coupling. Recommendations included checking the replacement coupling for residual magnetism and changing or filtering the pump oil...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001476
EISBN: 978-1-62708-229-7
... Microstructure in zone that had not been overheated. (×50). All the evidence pointed to the probability that a fire had occurred within the vessel. In order to ascertain if excessive “oil-pumping” by the compressor had provided the necessary fuel, the machine was stripped down and the piston rings...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047636
EISBN: 978-1-62708-217-4
...Abstract Abstract Several elbow subassemblies comprising segments of oil-line assemblies that recycled aircraft-engine oil from pump to filter broke in service. The components of the subassemblies were made of aluminum alloy 6061-T6. Two subassemblies were returned to the laboratory...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001578
EISBN: 978-1-62708-233-4
... Steam Generator Feed Pump Turbine Case #9: Resonance Destroys Generator Case #10: Oil Whip in a 500 Megawatt Turbine Case #11: Oil Whirl in a Chiller Unit Case #12: Centrifugal Air Compressor with 4× Bull Gear Vibration on 1st Stage Compressor Wheel Case #13: Coupling Unbalance in High...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001819
EISBN: 978-1-62708-241-9
...-containing environments in oil and gas production ,” NACE MR 0175/ISO 15156-3, “ Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys ,” NACE/ANSI/ISO ( 2003 ) 2. Reick W. , Pohl M. , Padilha A.F. : Desenvolvimento em ac¸os inoxidáveis feeŕıtico-austeńıticos com...
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
... a shaft drilling into a bearing is interrupted by the edge of the oil outlet as the drilling rotates or by inertia forces, high pressure can be produced. This variation of pressure can generate cavitation damage ( Ref 20 , 21 , 22 , 23 ). Cavitation erosion in centrifugal pumps has been studied...
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
..., damage is thought to result from flow-induced cavitation, while in pumps and injection equipment it is associated with violent fluctuations that may occur when the flow is suddenly interrupted, It is found mainly in unloaded areas of bearings where the oil film pressure is low and, therefore, results...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001809
EISBN: 978-1-62708-180-1
... 0.4 mm (0.015 in.) thick on steel 69 10,000 (a) Fatigue strength of bearing materials was determined under laboratory conditions of excellent alignment, excellent oil flow, a high degree of cleanness, ideal clearance, and normal operating temperature of 80 to 105 °C (180 to 220 °F). Normal...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001824
EISBN: 978-1-62708-241-9
... Fasteners , Failure Analysis and Prevention , Vol 11 , ASM Handbook , Becker W. T. and Shipley R.J. , Ed., ASM International , 1986 , p 529 – 549 . 10.31399/asm.hb.v11.a0001812 Multistage pumps are widely used whenever the enhanced oil reservoir program is implemented. The parts...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001116
EISBN: 978-1-62708-214-3
..., and they produce water as well as hydrocarbons. Carbon dioxide and hydrogen sulfide are also common constituents of the produced fluids. The pipe was obtained from a distributor to replace an old string in a well. The well was a hydraulically jet pumped well about 1800 m (6000 ft) deep that produced oil, water...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001118
EISBN: 978-1-62708-214-3
... stainless steel springs in oil ring lip seals failed. Applications Circumstances Leading to Failure Pertinent Specifications Performance of Other Parts in Same or Similar Service Specimen Selection Optical examination indicated flat (fatigue) fracture regions initiating on the inside...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006794
EISBN: 978-1-62708-295-2
... ). This is a common surface failure mode for components, such as pumps, pipelines, valves, and flotation cells, in facilities for slurry handling. Figure 2(a) illustrates erosion-corrosion attack on the internal wall of a carbon steel oil-sands tailings pipe. The internal wall suffers from synergistic attack...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001828
EISBN: 978-1-62708-241-9
.... The nameplate rating of the motor is 6.7 mW (9000 HP). The motor is provided with an oil-lubricated tilting pad radial bearing at the bottom and a combined up thrust, down thrust, and radial bearing arrangement located at the top. Fig. 3 CANDU heat transport pump Motor Support The pump motor...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006795
EISBN: 978-1-62708-295-2
... ( Ref 16 , 27 – 29 ), valves ( Ref 16 , 30 , 31 ), and inlet nozzles ( Ref 32 ). In the oil and gas industry, choke valves are damaged by erosion ( Ref 33 – 36 ). In the petrochemical industry, process control valves ( Ref 36 ) and power-recovery turbines ( Ref 17 , 37 ) are damaged by erosion...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003500
EISBN: 978-1-62708-180-1
... Insufficient instrumentation Electronic control failure Pneumatic control failure Lubrication Dirt in oil Insufficient oil Wrong lubricant Water in oil Oil pump failure Low oil pressure Plugged lines Improper filtration Contaminated oil Craftsmanship after maintenance Improper tolerances Welding error...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003568
EISBN: 978-1-62708-180-1
... turbines ( Ref 18 , 19 , 20 , 21 ), land-based gas turbines ( Ref 21 , 22 , 23 ), solids transport systems ( Ref 17 , 24 , 25 , 26 , 27 , 28 ), cyclones ( Ref 17 , 28 , 29 , 30 ), valves ( Ref 17 , 31 , 32 ), and inlet nozzles ( Ref 33 ). In the oil and gas industry, choke valves are damaged...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001808
EISBN: 978-1-62708-180-1
... at points of stress concentration either inherent in design or introduced during fabrication or operation. Design features that concentrate stress include ends of keyways, edges of press-fitted members, fillets at shoulders, and edges of oil holes. Stress concentrators produced during fabrication include...