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fretting corrosion

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048420
EISBN: 978-1-62708-226-6
... Abstract Fretting and fretting corrosion at the contact area between the screw hole of a type 316LR stainless steel bone plate and the corresponding screw head was studied. The attack on the 316LR stainless steel was only shallow. Mechanical grinding and polishing structures were exhibited...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001903
EISBN: 978-1-62708-217-4
... Abstract Fretting and/or fretting corrosion fatigue have been observed on such parts as main rotor counterweight tie rods, fixed-pitch propeller blades, propeller blade clamps, pressure regulator lines, and landing gear support brackets. Microcracks started from severe corrosion pits...
Image
Published: 01 June 2019
Fig. 1 Fretting and fretting corrosion at the contact area between the screw hole of a type 316LR stainless steel bone plate and the corresponding screw head. (a) Overview of wear on plate hole showing mechanical and pitting corrosion attack. 15x. (b) Higher-magnification view of shallow More
Image
Published: 01 January 2002
Fig. 35 Fretting and fretting corrosion at the contact area between the screw hole of a type 316LR stainless steel bone plate and the corresponding screw head. (a) Overview of wear on plate hole showing mechanical and pitting corrosion attack. 15×. (b) Higher-magnification view of shallow More
Image
Published: 01 June 2019
Fig. 1 Freon-compressor shaft of 4140 steel that failed by fretting corrosion in the bearing area (Example 2). (a) Shaft and bearing assembly. (b) Failed region of shaft, at 2×, showing disturbed metal and partly closed keyway. (c) Shaft side of bearing inner ring, at 3×, showing pitting More
Image
Published: 01 June 2019
Fig. 5 Fretting corrosion on outer face. More
Image
Published: 01 January 2002
Fig. 40 Freon-compressor shaft of 4140 steel that failed by fretting corrosion in the bearing area (Example 2). (a) Shaft and bearing assembly. (b) Failed region of shaft, at 2×, showing disturbed metal and partly closed keyway. (c) Shaft side of bearing inner ring, at 3×, showing pitting More
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
... cycles Fig. 34 Typical delamination in the fretted region produced by metal-to-metal contact Fig. 35 Fretting and fretting corrosion at the contact area between the screw hole of a type 316LR stainless steel bone plate and the corresponding screw head. (a) Overview of wear on plate...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006834
EISBN: 978-1-62708-329-4
... bearings are also explained. Finally, the article discusses in detail the characteristics and prevention of the various types of failures of REBs: wear, fretting, corrosion, plastic flow, rolling-contact fatigue, and damage. The article includes an Appendix, which lists REB-related abbreviations...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
... Abstract Fretting is a wear phenomenon that occurs between two mating surfaces; initially, it is adhesive in nature, and vibration or small-amplitude oscillation is an essential causative factor. Fretting generates wear debris, which oxidizes, leading to a corrosion-like morphology...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001745
EISBN: 978-1-62708-217-4
..., a 2000-T6 aluminum alloy swivel fitting experienced intergranular corrosion fracture as the result of stress-accelerated corrosion. Corrosion began because of a loose fit between the aluminum swivel fitting and steel tube assembly, which caused fretting. Inadequate maintenance and/or abnormal service...
Image
Published: 01 June 2019
Fig. 3 Corroded surface of fracture shown in Fig. 1 . Note severe fretting corrosion products (red-brown “mud” appearance) at and near two origins (O 1 and O 2 ) at the bottom outboard attachment bolt hole. Inset shows close-up of O 2 depicting “beach marks”. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0091897
EISBN: 978-1-62708-236-5
... occurred, requiring the collar, spacer sleeve, seal, roller bearing, and lockwasher to be replaced. Fig. 1 Freon-compressor shaft of 4140 steel that failed by fretting corrosion in the bearing area (Example 2). (a) Shaft and bearing assembly. (b) Failed region of shaft, at 2×, showing disturbed...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001819
EISBN: 978-1-62708-180-1
.... Implants can undergo surface attack by fretting, fretting corrosion, or wear. These types of attack can be relatively mild; they often occur only on the microscopic level, do not interfere with the functioning of the implant or the healing of the bone, and do not require reoperation. On prosthetic devices...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048407
EISBN: 978-1-62708-226-6
... characteristic that fretting corrosion occurred at the screw/plate interface at screw hole No. 7. This screw was closest to the bone defect and was secured only in one cortex. Compared to all the other screws, this one was the most likely to undergo relative motion. As outlined in the legend in Fig. 1...
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
... delamination and removal by wear. Corrosion enhances the wear attack. Wear of railway steel under repeated rolling contact suffers from such wear attack involving wear, fatigue, and corrosion. Perhaps the most encountered type of fatigue wear corrosion is fretting wear in a corrosive environment, termed...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006811
EISBN: 978-1-62708-329-4
... as fatigue crack initiation sites, contributing to eventual fatigue fractures. Additionally, pitting can be associated with fretting (and possibly eventual fatigue), as discussed in the following section. Galvanic Corrosion Galvanic coupling caused by the contact between two dissimilar materials...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048423
EISBN: 978-1-62708-226-6
... indicators of the presence of motion and loosening. In other investigated prostheses, flat fretting zones have also been found on other areas of the stem. On stainless steel prostheses, this wear appears occasionally as slight fretting corrosion attack. One may, however, distinguish wear that took place...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048421
EISBN: 978-1-62708-226-6
... of corrosion were observed in connection with fretting structures. Surgical implants Wear particles Titanium Fretting wear Figure 1(a) shows a portion of a titanium screw head with a lip of material that was transported by fretting at a plate-hole edge. A flat fretting zone is visible...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001468
EISBN: 978-1-62708-221-1
... concentration. The crank arms were, however, a press fit on to the shafts and the absence of fretting corrosion on the surfaces of the squared portion indicated that a satisfactory degree of fit had been obtained. It is known, however, that a press fit gives rise to a zone of stress concentration adjacent...