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copper bearing deposit removal

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001822
EISBN: 978-1-62708-180-1
.... The lubrication was then removed from the bronze bearing at the other end of the axle. The car traveled 55 km (34 miles) before the journal broke under the bronze bearing due to copper penetration ( Ref 7 ). The journal under the nonlubricated cast iron bearing was still red hot, but had not broken. The 1952...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001629
EISBN: 978-1-62708-235-8
... of nondiscolored and discolored areas both showed trace amounts of residue in the form of adherent deposits. EDS, FTIR spectroscopy, XPS, and secondary ion mass spectroscopy (SIMS) analyses indicated that the discoloration to the copper components was due to the development of CuO at localized regions...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001336
EISBN: 978-1-62708-215-0
... the unused old nor the unused new stock pipe flange assemblies showed any indications of deposited copper—evidence that both types had passed. Microstructural Analysis Figure 1 shows a typical unetched transverse, metallographic cross section of a used old stock pipe, revealing extremely small...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... in failure analysis. Figure 12 shows examples of fracture surface replicas viewed in the TEM. These are carbon films deposited on the original plastic films used for replication of the fracture surface. Subsequently, the plastic is dissolved away, and the carbon replica, supported on a copper grid...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... of abrasive materials that impinge on the component that continually removes surface material. In many cases, the presence of debris buildup may provide critical understanding of the specific wear/erosion mechanism involved in the failure. A common wear problem that is encountered relates to bearings...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001045
EISBN: 978-1-62708-214-3
...Abstract Abstract A failure analysis was conducted on brass alloy 270 heat exchanger tubes that were pulled from a unit used to cool oil for the speed regulators and thrust bearings of a hydroelectric power plant. The tubes began to leak after approximately 5.5 years of service...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001396
EISBN: 978-1-62708-229-7
... arise from corrosion in the pre-boiler plant. It probably passes into the boiler as ferrous hydroxide, which is converted by heat into magnetite. 5 3 Fe ( OH ) 2 = Fe 3 O 4 + 2 H 2 O + H 2 2. Effect of Copper Many boiler deposits contain metallic...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003520
EISBN: 978-1-62708-180-1
... corrosion products, deposits, or coatings. Determine mechanical properties and compare with specifications or standards. Perform macroscopic examination to evaluate homogeneity, integrity, and quality. Perform metallographic examination to evaluate microstructural features. Determine...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003556
EISBN: 978-1-62708-180-1
... and the sampling and analysis of conditions usually achieved by the installation of removable coupons in the target system. The article also explains the prevention and control strategies of MIC in industrial systems. aluminum aluminum alloys condition monitoring cooling towers copper copper alloys...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
... in galvanic attack of less noble metals. In the example shown at left, copper ions from the copper heater coil could deposit on the aluminum stirrer. A nonmetallic stirrer would be better. At right, the distance from a metal container to a heater coil should be increased to minimize ion transfer. (f) Wood...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
... considerable noise shortly after delivery of the vehicle. The entire bearing assembly was removed and submitted to the laboratory for failure analysis. In many instances, false Brinelling remains undetected until the machine is started, at which time noisy operation is immediately evident. The phenomenon...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001812
EISBN: 978-1-62708-241-9
.... It was therefore concluded that failure had occurred primarily by LME owing to the melting of the bearing material—analysed as Cu 12%Sn 0.24%Zn, 0.18%Ni, 0.38%Pb. For some gears, copper-coloured deposits did not extend over the entire fracture surfaces, and the remaining section had fractured...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
... or semipermanent installation. Threaded Fasteners Threaded fasteners are considered to be any threaded part that, after assembly of the joint, may be removed without damage to the fastener or to the members being joined. Rivets Rivets are permanent one-piece fasteners that are installed...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... metals. In the example shown at left, copper ions from the copper heater coil could deposit on the aluminum stirrer. A nonmetallic stirrer would be better. At right, the distance from a metal container to a heater coil should be increased to minimize ion transfer. (f) Wood treated with copper...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006409
EISBN: 978-1-62708-217-4
... section through the fracture showed intergranular cracking and branching of the crack ( Fig. 1c ), characteristic of SCC. Corrosion deposits were chemically removed from one section of the fracture surface, and the surface was examined in the scanning electron microscope. The fracture surface...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
.... Hydrogen embrittlement is caused by the use of a bright, impervious cadmium electroplate that hinders the diffusion of mobile hydrogen outward from the surface of the pin. After the cadmium layer was removed, the mobile hydrogen contained on the surface of the steel and in the electroplated deposit...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
...: Preserve some corrosion product before cleaning fracture surfaces or during cleaning if using acetate replicas. Dry corrosion product can be preserved by castable mounting before sectioning. General Corrosion In general corrosion, metal is removed fairly uniformly, reducing the load-bearing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003554
EISBN: 978-1-62708-180-1
... Blunting in Liquid Metal Environments on K IEAC Determined by the Rising Load Test , Eng. Fail. Anal. , Vol 3 ( No. 3 ), Sept 1996 , p 227 – 230 • Hargrave R.E. , Unusual Failures Involving Copper Deposition in Boiler Tubing , Corrosion , Vol 47 ( No. 7 ), July 1991 , p 555...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001317
EISBN: 978-1-62708-215-0
... Leading to Failure Pertinent Specifications Performance of Other Parts In Same or Similar Service Specimen Selection No abnormal features were observed visually that had bearing on the failures. Nondestructive Evaluation Surface Examination Metallography All of the evidence...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006786
EISBN: 978-1-62708-295-2
... ( No. 3 ), Sept 1996b , p 227 – 230 10.1016/1350-6307(96)00009-X • Hargrave R.E. , Unusual Failures Involving Copper Deposition in Boiler Tubing , Corrosion , Vol 47 ( No. 7 ), July 1991 , p 555 – 567 10.5006/1.3585292 • Krupowicz J.J. , “ Effect of Heat Treatment...