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high-temperature corrosion

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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... Abstract High-temperature corrosion can occur in numerous environments and is affected by various parameters such as temperature, alloy and protective coating compositions, stress, time, and gas composition. This article discusses the primary mechanisms of high-temperature corrosion, namely...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0047343
EISBN: 978-1-62708-236-5
... Thermal fatigue fracture (Other, general, or unspecified) distortion High-temperature corrosion and oxidation An experimental high-temperature rotary valve was found stuck in the housing due to growth and distortion after approximately 100 h. Gas temperatures were suspected to have been high due to...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091754
EISBN: 978-1-62708-229-7
... pressures of the gases within the duct, combined with the high temperatures, facilitated nitrogen pickup. No recommendations were made. Intergranular precipitation Oxidation Spalling Inconel 317 UNS N06617 High-temperature corrosion and oxidation The presence of carbides and carbonitrides in...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001163
EISBN: 978-1-62708-234-1
... the presence of moist organic chlorine compounds at high temperatures and pressures as well as in concentrated leaching solutions 4 , 7 , 10 . The susceptibility to chloride increases with increasing concentration and increasing temperatures above 50°C. At high temperatures SCC can be initiated by...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001455
EISBN: 978-1-62708-234-1
... Protective coatings HE.15 Exfoliation corrosion The aluminium alloy BS. 1476—HE.15 by virtue of its high strength and low density finds application in the form of bars or sections for cranes, bridges and other items of plant where a reduction in dead weight load and inertia stresses is advantageous...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001674
EISBN: 978-1-62708-234-1
... preferential attack of the gold was due to HCN formed by decomposition of the explosive powder at high temperatures. Other associated reactions were also observed including the subsequent attack of the solder by the gold corrosion product and degradation of the plastic header. Bridgewires Detonators...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001681
EISBN: 978-1-62708-234-1
... Casting alloys Coal gasification Co-29Cr-19Fe High-temperature corrosion and oxidation In some coal gasification processes [ 1 ], the reactor burner nozzle is a crucial component. Through it coal slurry and oxygen are injected into the reaction chamber where they react exothermically producing high...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0046969
EISBN: 978-1-62708-227-3
... blades IN-713 UNS N07713 High-temperature corrosion and oxidation Aluminide-coated and uncoated IN-713 turbine blades were returned for evaluation after service in a marine environment because of severe corrosion. Based on service time, failure of these blades by corrosive deterioration was...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048331
EISBN: 978-1-62708-229-7
... 321 UNS S32100 2.25Cr-1Mo High-temperature corrosion and oxidation The top tube of a horizontal superheater bank in the reheat furnace of a steam generator ruptured as shown in Fig. 1 after about 7 1 2 years of service (normal service life would have been 30 years). The tube...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001616
EISBN: 978-1-62708-229-7
... during assembly of the tubes reduced the corrosion problem. Flue gas BS-6323 Pitting corrosion High-temperature corrosion and oxidation Reference 1. Incropera F.P. and Dewitt D.P. : Fundamentals of Heat and Mass Transfer , 3rd ed. , John Wiley & Sons...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c0046998
EISBN: 978-1-62708-232-7
...) Tubes RA 333 UNS N06333 High-temperature corrosion and oxidation One of 14 vertical radiant tubes in a heat-treating furnace failed prematurely when a hole about 5 × 12.5 cm (2 × 5 in.) corroded completely through the tube wall ( Fig. 1 ). The radiant tubes were arranged in rows of seven along...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001396
EISBN: 978-1-62708-229-7
... equipment should be prevented from entering the boiler itself. Also, it is good practice to reduce as far as possible the intrusion of weld flash and other impedances to smooth flow within the boiler tubes. Boiler tubes Corrosion products Magnetite Boiler tube steel High-temperature corrosion and...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0091402
EISBN: 978-1-62708-234-1
...: Irons, Steels, and High-Performance Alloys , Volume 1 of ASM Handbook. ) In piping systems, erosion-corrosion can be reduced by increasing the diameter of the pipe, thus decreasing velocity and turbulence. The streamlining of bends is useful in minimizing the effects of impingement. Inlet pipes...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001648
EISBN: 978-1-62708-234-1
... surface of the coupling was high in sulfates. The nonmetallic deposit found where corrosive activity was well developed is characteristic of attack by sulfate-reducing microbes. 6 The indication, therefore, is that the organism involved is of a variety that was preferentially attacking the MnS...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091761
EISBN: 978-1-62708-229-7
... casting technique would reduce the stress and make the design more tolerant of corrosion. Marine environments Protective coatings Udimet 500 UNS N07500 High-temperature corrosion and oxidation Turbine buckets in a 37.5 MW gas turbine made of Udimet 500 superalloy failed in service ( Ref 1...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001218
EISBN: 978-1-62708-234-1
... water of the mouth of the river was attributed to stress corrosion and pitting. The steel used, which contained molybdenum, would have withstood the severe corrosive conditions in the heat-treated condition, i.e. quenched after high temperature anneal. However, the stresses caused by deformation and...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c0046995
EISBN: 978-1-62708-232-7
... corrosion and oxidation Three radiant tubes, made of three different high-temperature alloys, were removed from a carburizing furnace after approximately 8 1 2 months of service when they showed evidence of failure by collapsing (telescoping) in a region 30 cm (12 in.) from the tube bottoms in...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001166
EISBN: 978-1-62708-228-0
... question, the pipes material should be a heat-resistant steel that contains more chromium and has greater resistance to hydrogen sulfide. Corrosion products Hydrogen sulfide Piping Chromium-molybdenum steel Hydrogen damage and embrittlement High-temperature corrosion and oxidation Pipes from...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0090276
EISBN: 978-1-62708-230-3
... (Other, general, or unspecified) corrosion A Yankee dryer is a critical mechanical component in the manufacture of tissue paper. It is a large, cylindrical, rotating, pressurized, high-temperature, cast iron pressure vessel that has evolved in design since the early 1900s. A wet sheet of paper is...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001688
EISBN: 978-1-62708-234-1
... case. Decarburization Superheaters Tube components ASTM A209 Creep fracture/stress rupture Intergranular corrosion High-temperature corrosion and oxidation The authors have been involved in the examination of many failed superheater components and the two examples given here are...