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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001312
EISBN: 978-1-62708-215-0
... Abstract A copper condenser dashpot in a refrigeration plant failed prematurely. The dashpot was a long tubular component with a cup brazed at each end. Stereomicroscopic examination of the fracture surface at low magnification revealed a typical ductile mode of failure. The failure...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001310
EISBN: 978-1-62708-215-0
... Abstract Leaks developed in 22 admiralty brass condenser tubes. The tubes were part of a condenser that was being used to condense steam from a nuclear power plant and had been in operation for less than 2 years. Analysis identified three types of failure modes: stress-corrosion cracking...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001334
EISBN: 978-1-62708-215-0
... Abstract Leaks developed at random locations in aluminum brass condenser tubes within the first year of operation of a steam condenser in a nuclear power plant. One failed tube underwent scanning electron microscopy surface examination and optical microscope metallography. It was determined...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001409
EISBN: 978-1-62708-229-7
... velocities. In the present study, steam turbine condenser tubes had to be renewed after 25 years of service. The tubes were nominally of 70:30 brass. The appearance of a typically corroded one showed uniform dezincification attack on the bore, extending from one-half to two-thirds through the tube wall...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001534
EISBN: 978-1-62708-220-4
... Abstract A detailed failure analysis was conducted on an ammonia refrigerant condenser tube component that failed catastrophically during its initial hours of operation. Evidence collected clearly demonstrated that the weld between a pipe and a dished end contained a sharp unfused region at its...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001044
EISBN: 978-1-62708-214-3
... Abstract Inhibited admiralty brass (UNS C44300) condenser tubes used in a natural-gas-fired cogeneration plant failed during testing. Two samples, one from a leaking tube and the other from an on leaking tube, were examined. Chemical analyses were conducted on the tubes and corrosion deposits...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091807
EISBN: 978-1-62708-229-7
... Abstract Failures occurred in admiralty brass condenser tubes in a nuclear plant cooled by freshwater. About 2500 tubes had to be replaced over a span of six years. Investigation (visual inspection, chemical analysis, water chemistry (for both intake and outfall), and corrosion products...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048702
EISBN: 978-1-62708-220-4
... Abstract An aluminum brass seawater surface condenser failed due to pitting after less than one year of service. Large pits filled with a green deposit were evidenced under the nonuniform black scale present over the entire inside surface of the tube. The black deposit was identified...
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Published: 01 January 2002
Fig. 4 Failed aluminum brass condenser tube from a saltwater heat exchanger. The tube failed from pitting caused by hydrogen sulfide and chlorides in the feedwater. (a) Cross section of tube showing deep pits and excessive metal wastage. 2 3 4 ×. (b) Higher magnification view of a pit More
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Published: 01 January 2002
Fig. 6 Copper alloy C26000 steam-turbine condenser tube that failed by dezincification. (a) Section through condenser tube showing dezincification of inner surface. 3 1 2 ×. (b) Etched specimen from the tube showing corroded porous region at the top and unaffected region below. 100× More
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Published: 01 January 2002
Fig. 15 Layout of a stainless steel reactor condenser that experienced pitting corrosion. VAM, vinyl acetate monomer. Source: Ref 20 More
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Published: 01 December 1992
Fig. 1 Condenser shell and tube support plates after washing with high-pressure water. More
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Published: 01 December 1992
Fig. 1 Layout of the reactor condenser. More
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Published: 01 December 2019
Fig. 1 Arrangement of condenser on distillation tower More
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Published: 30 August 2021
Fig. 4 Failed aluminum brass condenser tube from a saltwater heat exchanger. The tube failed from pitting caused by hydrogen sulfide and chlorides in the feedwater. (a) Cross section of tube showing deep pits and excessive metal wastage. Original magnification: 2.75×. (b) Higher-magnification More
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Published: 30 August 2021
Fig. 6 Copper alloy C26000 steam-turbine condenser tube that failed by dezincification. (a) Section through condenser tube showing dezincification of inner surface. Original magnification: 3.5×. (b) Etched specimen from the tube showing corroded porous region at the top and unaffected region More
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Published: 15 January 2021
Fig. 15 Layout of a stainless steel reactor condenser that experienced pitting corrosion. VAM, vinyl acetate monomer. Source: Ref 20 More
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Published: 15 May 2022
Fig. 9 Schematic view of a fluorescent ultraviolet test chamber with condensation wetting and cooling from the back side of the test specimen More
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Published: 01 December 1993
Fig. 1 Diagram of the condenser unit More
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Published: 01 December 1993
Fig. 6 EDS elemental analysis results for the condenser inlet deposit More