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pitting damage

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870045
EISBN: 978-1-62708-299-0
... overall, general corrosion. Thus, the designer needs to consider not only the rate at which corrosion occurs but how the corrosion might affect the critical design properties. Finally, although pitting is regarded as the least damaging form of corrosion, microscopic studies of corrosion have shown...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030033
EISBN: 978-1-62708-282-2
... the surface, such as inclusions, second-phase particles, solute-segregated grain boundaries, flaws, mechanical damage, or dislocations ( Ref 19 ). Most engineering alloys have many or all such defects, and pits will tend to form at the most susceptible sites first. Pits in stainless steels are often...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430147
EISBN: 978-1-62708-253-2
... corrosion Flow-assisted corrosion (FAC) Erosion corrosion Cavitation damage Oxygen attack or oxygen pitting Stress-corrosion cracking (SCC) Caustic stress-corrosion cracking or caustic embrittlement Stress-assisted corrosion (SAC) Chelate corrosion Fire-side corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540215
EISBN: 978-1-62708-309-6
... Abstract This chapter presents a fracture-mechanics-based approach to damage tolerance, accounting for mechanical, metallurgical, and environmental factors that drive crack development and growth. It begins with a review of stress-intensity factors corresponding to a wide range of crack...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910099
EISBN: 978-1-62708-250-1
... Abstract Corrosion problems can be divided into eight categories based on the appearance of the corrosion damage or the mechanism of attack: uniform or general corrosion; pitting corrosion; crevice corrosion, including corrosion under tubercles or deposits, filiform corrosion, and poultice...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230459
EISBN: 978-1-62708-298-3
... oxides that form on the surface of beryllium and their ability to withstand acids, bases, and corrosive agents found in rain and seawater. It explains how carbides, inclusions, ions, and impurities contribute to corrosion damage, particularly pitting, and how corrosion reduces the ductility and fracture...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130087
EISBN: 978-1-62708-284-6
... corrosion resistant. Frequently, such situations lead to pit formation, which then allows the crack to propagate from the stress concentration at the pit. This is an example of a complex damage mechanism. Fig. 19 Stainless steel weldment Fig. 20 Scanning electron micrograph of stainless...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270156
EISBN: 978-1-62708-301-0
... Abstract The tail rotor blade of a helicopter developed a visible crack during service. The cracked region was removed from the blade and the fracture surface was examined in a SEM, revealing shallow pitting on the inside surface of the skin and a corresponding reduction in thickness. Based on...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090419
EISBN: 978-1-62708-266-2
... areas such as pits and rust discoloration on austenitic stainless steels are readily visible. The methods, applications, and effectiveness of various NDE techniques are shown in Table 18.1 . Table 18.1 Nondestructive evaluation techniques for suspected stress-corrosion cracking damage...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
... case studies. boiler tubes caustic embrittlement cavitation damage chelate corrosion erosion corrosion flow-assisted corrosion microbially induced corrosion oxide layer oxygen pitting stress-assisted corrosion stress-corrosion cracking under-deposit corrosion water-side corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270128
EISBN: 978-1-62708-301-0
...% Cr, 1.2% Ni steel. In the SEM, poorly defined markings resembling fatigue striations were seen in the half-moon-shaped regions of the fracture surface. Corrosion pits were also seen at the point of crack origin and its surroundings. No foreign object damage or material flaw was seen. The...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870219
EISBN: 978-1-62708-299-0
... penetration, statistical analysis, and loss in mechanical properties to quantify the severity of pitting damage. More than one of these methods can be used. In fact, it is often found that no one method is sufficient by itself. Because pitting tends to be nonuniform, the pitting factor (the ratio of maximum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610501
EISBN: 978-1-62708-303-4
... destroyed, although it will reform. Various types of oxide coatings are frequently applied to steel for decorative and corrosion-resistance purposes. However, like certain other coatings, oxides are ineffective if damaged and are subject to pitting by certain environments, particularly in chlorides and...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240323
EISBN: 978-1-62708-251-8
... than uniform corrosion damage because it is more difficult to detect, predict, design against, and can lead to a sudden loss of function of the material. Pitting occurs when discrete areas of a material undergo rapid attack while most of the adjacent surface remains virtually unaffected. Although the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130177
EISBN: 978-1-62708-284-6
..., case crushing, pitting corrosion, and partial melting are also provided. carburized components carbonitrided components hardenability residual stress dimensional stability quenching cracks grinding cracks micropitting macropitting case crushing pitting corrosion partial melting carbon...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630211
EISBN: 978-1-62708-270-9
... ): Galvanic corrosion Uniform corrosion Crevice corrosion Pitting corrosion Environmentally induced cracking Hydrogen damage Intergranular corrosion Dealloying/dezincification Erosion corrosion In addition, there are corrosion mechanisms that form subsets within each of the nine...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820203
EISBN: 978-1-62708-339-3
... satisfactory service in most industrial applications. Even though the applied sensor perturbation is small, repeated application over a long period can lead to “artificial” surface damage. In addition, these systems cannot provide information on localized corrosion, such as pitting and SCC. In principle...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030176
EISBN: 978-1-62708-282-2
... alloys. Some categories of corrosion covered are pitting, crevice, intergranular, stress-corrosion cracking, general, and high-temperature corrosion. stainless steels nickel alloys corrosion resistance alloying elements pitting corrosion crevice corrosion intergranular corrosion stress...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310027
EISBN: 978-1-62708-286-0
... Abstract This chapter explores the behavior of stainless steel in media that promote corrosion. The forms of corrosion covered are uniform corrosion, atmospheric corrosion, localized corrosion, pitting corrosion, crevice corrosion, and grain boundary corrosion. The chapter discusses the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820043
EISBN: 978-1-62708-339-3
... discusses general types of corrosive attack and their effects on service integrity as well as detection and control measures. The five corrosive attack mechanisms covered are intergranular corrosion, preferential attack associated with weld metal precipitates, pitting and crevice corrosion, stress-corrosion...