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pitting corrosion fatigue model

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Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003642
EISBN: 978-1-62708-182-5
.... The risk-based model and knowledge models are illustrated with examples for better understanding. The article also describes boundary-element modeling and pitting corrosion fatigue models. corrosion modeling differential equation mechanistic model Pourbaix model thermophysical module...
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Published: 01 January 2003
Fig. 14 Correlation of corrosion fatigue prediction (pit-as-crack) model and Aeronautical and Maritime Research Laboratory experimental corroded specimen results for approximately 80 corroded coupons. Pit depths measured postfracture used in the corrosion fatigue predictions, along 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
... to be integrated into corrosion fatigue models to assess structural integrity. Pitting Corrosion Metrics Pitting is a common form of corrosion experienced by structural materials such as the high-strength aluminum alloys used in the aerospace industry. This type of corrosion has received considerable...
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
... mechanism, acting independently and in concert with other mechanisms. Corrosion Fatigue Model Applications A basic engineering approach to compute the effects of corrosion on structural capability is described and exercised for two types of corrosion: crevice and pitting. The analyses use fracture...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004131
EISBN: 978-1-62708-184-9
... V. , and Taylor A.M.H. , Review of Pitting Corrosion Fatigue Models , ICAF '99 Proc. ( Seattle, WA ), July 12–16, 1999 16. Bond G.M. , Robertson I.M. , and Birnbaum K. , Effects of Hydrogen on Deformation and Fracture Processes in High-Purity Aluminum Acta Metall...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002395
EISBN: 978-1-62708-193-1
... and for adsorption-induced surface energy reductions in gaseous environments. Gas Environments Pitting in gases is generally restricted to oxidizing environments. However, even non-oxidizing gases that do not induce pitting may still significantly enhance corrosion fatigue initiation. The pitting model...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003631
EISBN: 978-1-62708-182-5
... of corrosion fatigue cracks vary with the alloy and with specific environmental conditions. In carbon steels, cracks often originate at hemispherical corrosion pits and often contain significant amounts of corrosion products. The cracks are often transgranular and may exhibit a slight amount of branching...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003641
EISBN: 978-1-62708-182-5
... fatigue failures are, by definition, extreme values. The depth of the deepest pit on a specimen is the upper tail of the distribution of depths of all pits on that specimen ( Ref 23 ). Engineers concerned with soil corrosion and underground steel piping are aware that the maximum pit depth found...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003633
EISBN: 978-1-62708-182-5
... fatigue threshold, F is a constant, and Δσ 0 is the alternating surface stress. A pit could be represented by a half-elliptical surface crack because it had intergranular corrosion at the base that caused the pit to have cracklike characteristics. A model for stress-corrosion crack growth...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002405
EISBN: 978-1-62708-193-1
... breaking the thin passive layer at the surface and by corrosion pits acting as notches on the surface. Crack Initiation from Local Strains The influence of local strains on the initiation of fatigue cracks in duplex stainless steels has been demonstrated by low-cycle fatigue tests ( Ref 5 , 6 , 7...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006566
EISBN: 978-1-62708-290-7
..., and fatigue strength, as well as environmental properties with respect to corrosion resistance, highlighting the importance of postbuild thermal processing. additive manufacturing corrosion resistance fatigue strength hardness inclusions microstructure porosity residual stress steel tensile...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004169
EISBN: 978-1-62708-184-9
... is an acute perforation of the alloy. This form of corrosion is observed in all aluminum product forms used for fuselage skin, webs, and bulkheads. It is also observed on steels used in landing-gear and flight-control components. Pits are stress raisers and initiation sites for fatigue or stress-corrosion...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003316
EISBN: 978-1-62708-176-4
... environments. Affected surfaces show pits or grooves with surrounding corrosion products. On ferrous metals, corrosion product is usually a very fine, reddish iron oxide; on aluminum, it is usually black. The debris from fretting of noble metals does not oxidize. Under fretting conditions, fatigue strength...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004155
EISBN: 978-1-62708-184-9
... Abstract The steam turbine is the simplest and most efficient engine for converting large amounts of heat energy into mechanical work. This article discusses the primary corrosion mechanisms such as corrosion fatigue, stress-corrosion cracking (SCC), pitting, corrosion, and erosion-corrosion...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002372
EISBN: 978-1-62708-193-1
... bending fatigue of the asperities, stress concentrations in the pits left by sheared adhering “cold-welded” asperity junctions, corrosion pits that form due to removal of protective oxides by fretting, grooves due to abrasion, or delamination of a thin surface region whose work-hardening capacity has been...
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
... materials with the aid of models and equations. It presents three examples of erosive wear failures, namely, abrasive erosion, erosion-corrosion, and cavitation erosion. abrasive erosion brittle materials cavitation erosion ductile materials erosion erosion corrosion EROSION...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004210
EISBN: 978-1-62708-184-9
... for localized or pitting corrosion ( Ref 29 , 30 ) As mentioned previously, an important innovation in corrosion prediction is the use of flow modeling to assess and understand the influence of production parameters on determining the applicable flow regime and quantify the resultant mechanical forces...
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
... fracture ( Ref 62 – 64 ), extrusion ( Ref 65 , 66 ), fatigue ( Ref 67 , 68 ), delamination ( Ref 69 , 70 ), deformation localization ( Ref 52 , 60 , 71 , 72 ), and melting ( Ref 43 , 65 , 71 ). An even greater number of analytical models have been proposed ( Ref 73 , 74 ), but none have been...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006384
EISBN: 978-1-62708-192-4
... is available from pressure pulse measurements only and the radial extent of impact loads from pitting tests only. A technique based on finite-element modeling (FEM) simulations, to derive impact load amplitudes from pitting tests, is presented in the section “ Fluid-Structure Interaction ” in this article...
Book Chapter

By Jerome Kruger
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003585
EISBN: 978-1-62708-182-5
..., pitting, crevice corrosion, and corrosion fatigue. Its importance to materials technology transcends, however, corrosion science and corrosion engineering. For example, one of the main reasons silicon replaced germanium in semiconductor device technology was that silicon forms effective passive films...