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pitting and holes

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Published: 30 September 2015
Fig. 7 Pitting depth measured on a bridge member. Note hole on left. Courtesy of KTA-Tator, Inc. More
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Published: 01 January 2006
Fig. 6 Crack origin inside a rivet hole developed from an existing corrosion pit More
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Published: 01 August 2018
Fig. 21 Depth map colored reconstruction of a pit hole point cloud More
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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
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Published: 01 January 2002
Fig. 30 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
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Published: 15 January 2021
Fig. 42 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. Original magnification: 15×. (b) Higher More
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Published: 01 January 2002
Fig. 4 Nickel plated 1095 steel pawl spring that fractured by fatigue. (a) Configuration and dimensions (given in inches) of the failed component. (b) Micrograph showing pits at edge of rivet hole. 45×. (c) Micrograph of area adjacent to rivet hole, showing delaminations (arrows) filled More
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Published: 01 January 2003
Fig. 4 Example of the results of crevice corrosion. Type 304 stainless steel exposed to 6 wt.% ferric chloride for 48 h at room temperature with castellated crevice washer applied around center hole. Pitting also occurred at several sites outside the crevice. The draining of the occluded More
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Published: 01 January 2006
Fig. 10 Predicted fatigue lives for 7075-T6 alloy, open-hole geometry specimens with superimposed corrosion damage. Open-hole without corrosion damage, K t =3.0 curve. Char is the characteristic damage curve. 5% and 95% curves represent the 5th and 95th percentile of pit dimension More
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Published: 01 January 2002
Fig. 5 Copper alloy C70600 tube from a hydraulic-oil cooler. The cooler failed from crevice corrosion caused by dirt particles in river water that was used as a coolant. (a) Inner surface of hydraulic-oil cooler tube containing a hole (arrow A) and nodules (one of which is indicated by arrow B More
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Published: 30 August 2021
Fig. 5 Copper alloy C70600 tube from a hydraulic-oil cooler. The cooler failed from crevice corrosion caused by dirt particles in river water that was used as a coolant. (a) Inner surface of hydraulic-oil cooler tube containing a hole (arrow A) and nodules (one of which is indicated by arrow B More
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Published: 30 August 2021
Fig. 24 Low-magnification view of (a) inner surface showing shallow pits and (b) outer surface having several pin-hole-sized punctures surrounded by uneven depressions. Original magnification: 8× More
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Published: 01 January 2006
Fig. 7 South American muffler (409 shell and baffles) designed without drain holes in end caps or baffles (4000 km, or 2500 miles, of driving). Lack of condensate drainage has led to premature pitting perforations. More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004128
EISBN: 978-1-62708-184-9
... in two other Australian aircraft. Corrosion pitting was found in the majority of the lug hole bore surfaces, and fatigue cracks initiated from the pits in both aircraft. In one aircraft, the corrosion pits reached an average depth of 200 μm, and the largest pit was 290 μm deep. In the other aircraft...
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
...-to-metal (McKee) Fig. 2 Typical examples for orthopedic internal fixation devices (schematic). (a) and (b) Round hole bone plates (can be used with compression devices). (c) Classical Sherman bone plate. (d) to (g) Dynamic compression plates of various sizes. (h) Compression bone plate with glide...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001815
EISBN: 978-1-62708-180-1
...-stress point. Fig. 17 Spiral bevel gear tooth. Tooth-bending fatigue with origin at the apex of the drilled bolt hole, which terminated just below the root radius. 0.5× Surface-Contact Fatigue (Pitting) As a surface or near-surface failure, pitting is recognized as a fatigue mode...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000619
EISBN: 978-1-62708-181-8
.... 910 , 911 , 912 ). Fig. 913 : Portion of crack face on a ligament between two drilled holes. Note transgranular fracture mode. 16×. Fig. 914 : Microstructure of cross section through crack face (bottom) of bronze shell. Note secondary cracking at bottoms of deep pits at drilled hole (left). Cracks...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004163
EISBN: 978-1-62708-184-9
... the rate of evaporation, the longer the time that chloride-laden acidic droplets have to initiate and propagate pits. For the same mileage, short driving trips where mufflers never get hot enough to completely dry out are more detrimental to muffler longevity than extended interstate trips. Drain holes...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003706
EISBN: 978-1-62708-182-5
... the bottom of a corrosion pit. The Aeronautical and Maritime Research Laboratory (AMRL) of Australia ( Ref 26 ) cut a large set of experimental test coupons from the same sample of aluminum alloy 7050-T7451. The specimens had rectangular cross sections 32.00 by 9.91 mm (1.26 by 0.39 in.). Centered holes...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006813
EISBN: 978-1-62708-329-4
... locally by an electric potential difference between two electrically dissimilar metals in the system in the presence of an electrolyte Pitting corrosion: A form of localized autocatalytic corrosion due to pitting that results in holes in the metal Stress corrosion: Leads to localized cracks...