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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
..., hot salt attack, and thermal fatigue. The article describes the various forms of corrosion which occur at the cold end of an exhaust system. The forms of cold end exhaust corrosion, including condensate pitting corrosion, exterior salt pitting, crevice corrosion, intergranular corrosion, and galvanic...
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Published: 01 January 2006
Fig. 12 Exterior cyclic salt pitting test B after 25 weeks with a weekly 1 h 315 °C (600 °F) heat exposure and daily salt solution dip and humidity exposure More
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Published: 01 January 2006
Fig. 13 Exterior cyclic salt pitting test B after 12 weeks with a weekly 1 h 425 °C (800 °F) heat exposure and daily salt solution dip and humidity exposure More
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Published: 01 January 2006
Fig. 14 Exterior cyclic salt pitting test B after 12 weeks with a weekly 1 hr 540 °C (1000 °F) heat exposure and daily salt solution dip and humidity exposure More
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Published: 01 January 2006
Fig. 11 Comparison of average pit depths over time for four exhaust stainless steel alloys exposed to cyclic exterior salt humidity cabinet pitting test A. See text for test details. More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004162
EISBN: 978-1-62708-184-9
... Abstract This article discusses the commonly encountered forms of automotive body corrosion. The corrosion forms include general or uniform corrosion, cosmetic or under-film corrosion, galvanic corrosion, crevice corrosion, poultice or under-deposit corrosion, and pitting corrosion. Corrosion...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004126
EISBN: 978-1-62708-184-9
... shows what can happen when the plating is a cathode with respect to the substrate metal and is not thick enough to be a barrier coating. The small-anode/large-cathode area ratio results in serious pitting of the underlying steel. Tin, lead, and aluminum coatings are an exception. They corrode readily...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006492
EISBN: 978-1-62708-207-5
... coatings and paints. It addresses some of the more common corrosion mechanisms, including corrosion driven by pH extremes, pitting corrosion, crevice corrosion, galvanic corrosion, and filiform corrosion. The article also describes in-plant as well as field application procedures for cleaning and coating...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006059
EISBN: 978-1-62708-172-6
... (PVC). The ductile pipe used today is generally primed on the exterior with only a thin coal-tar-based primer. Small-diameter service pipes such as these, whether made from ductile iron or PVC, tend not to be coated when buried. Larger-diameter sewer collection pipes that receive lateral flows along...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006062
EISBN: 978-1-62708-172-6
...) can provide very cost-effective corrosion protection for steel structures, piping, and miscellaneous hardware such as hanger rods, fasteners, conduit, piping (exterior), and so on. Stainless steel and fiberglass-reinforced plastic (FRP) tanks and piping and concrete structures and surfaces are usually...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003105
EISBN: 978-1-62708-199-3
..., most dissolved salts become ionized and increase the conductivity of water which, in turn, tends to localize corrosion, thus leading to severe pitting, The increased conductivity permits cathodic areas to become larger and causes anode and cathode reaction products to combine in the water instead...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006024
EISBN: 978-1-62708-172-6
... to prevent contamination of the preparation media (for example, to prevent contamination of steel abrasives that are recycled). Other specifications require the removal after preparation because the precleaning of rusted areas will likely not remove the salts in pits that are sheltered by the corrosion. Once...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004127
EISBN: 978-1-62708-184-9
.... Aerated halide solutions (e.g., chloride from salts) commonly result in pitting corrosion damage of aluminum alloys. This environment commonly occurs with maritime aircraft programs and aircraft deployed to aircraft carriers. The corrosion resistance of aluminum is strongly influenced by its chemical...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004165
EISBN: 978-1-62708-184-9
... pitting in the less noble metal may lead to localized penetration at the bimetallic contact. A high salt load in a test may not be able to mimic this behavior. The overall corrosion rate will be high, but the associated high electrolytic activity that leads to the anodic reaction becomes “smeared out...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006040
EISBN: 978-1-62708-172-6
... of steel and ductile iron pipe and graphitic corrosion of cast iron pipe. Figure 3 shows electrolytic pitting corrosion on a carbon steel transmission main. Note the exterior bituminous coating (circa 1924). Fig. 3 Electrolytic pitting corrosion on a carbon steel transmission main Figure 4...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006051
EISBN: 978-1-62708-172-6
... sealers because breathing film allows passage of water vapor. Used as interior and exterior coatings Asphalt pitch Good water resistance and ultraviolent stability. Will not crack or degrade in sunlight. Nontoxic and suitable for exposure to food products. Resistant to mineral salts and alkalis to 30...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004104
EISBN: 978-1-62708-184-9
... and other pollutants due to a tightly adherent oxide film. Destruction of the oxide film will expose a very reactive surface. If the protective oxide film is disturbed, the presence of salts, including chlorides, can cause rapid pitting of aluminum. Nonanodized aluminum can suffer severe corrosion in marine...
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
... Abstract This article describes the commonly observed forms of airplane corrosion, namely: general corrosion, exfoliation corrosion, pitting corrosion, microbiologically induced corrosion, galvanic corrosion, filiform corrosion, crevice corrosion, stress-corrosion cracking, and fretting...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003198
EISBN: 978-1-62708-199-3
... is also suitable for neutral heating, as well as for cyanide and noncyanide carburizing processes. The molten salt is contained in a steel or ceramic pot surrounded by suitable insulating materials, which separate it from an exterior casing or framework of heavy-gage steel. The salt is heated by passing...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006014
EISBN: 978-1-62708-172-6
..., mill scale, rust, paint, oxides, corrosion products, and other foreign matter. Slight residues of rust and paint may be left in the lower portion of pits if the original surface is pitted. Cleaning shall retain or produce a surface profile of 25 μm (1 mil) minimum. SSPC-SP 15 “Commercial-Grade...