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intergranular stress corrosion cracking

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001561
EISBN: 978-1-62708-229-7
... Abstract An intergranular stress-corrosion cracking failure of 304 stainless steel pipe in 2000 ppm B as H3BO3 + H2O at 100 deg C was investigated. Constant extension rate testing produced an intergranular type failure in material in air. Chemical analysis was performed on both the base metal...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001061
EISBN: 978-1-62708-214-3
... and heat-affected zones (HAZs). Fracture/crack morphology was brittle and primarily intergranular and deposits at crack tips were primarily iron oxides with significant amounts of sodium compounds. On these bases, the cracking was characterized as intergranular stress-corrosion cracking (IGSCC). Corrosion...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001317
EISBN: 978-1-62708-215-0
... Abstract Two AISI type 316 stainless steel dished ends failed through the formation of intergranular stress-corrosion cracks (IGSCC) within a few months of service. The dished ends failed in the straight portions near the circumferential welds that joined the ends to the cylindrical portions...
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Published: 15 January 2021
Fig. 21 Micrograph of intergranular stress-corrosion cracking (arrows) that originated at the inside-diameter (ID) surface of a pipe in lean amine service More
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Published: 15 January 2021
Fig. 30 Micrograph of intergranular stress-corrosion cracking in the head-to-shell heat-affected zone of a secondary urea reactor. Oxide is present within the stress-corrosion crack (arrows). Original magnification: 50× More
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Published: 01 January 2002
Fig. 47 Longitudinal crack and intergranular stress-corrosion cracks in copper air-conditioning absorber tubes. (a) Longitudinal crack in one of the subject absorber tubes. 0.75×. (b) Macrograph of fine, irregular crack observed on the outer surface of the second absorber tube after light acid More
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Published: 01 June 2019
Fig. 1 Longitudinal crack and intergranular stress-corrosion cracks in copper air-conditioning absorber tubes. (a) Longitudinal crack in one of the subject absorber tubes. 0.75×. (b) Macrograph of fine, irregular crack observed on the outer surface of the second absorber tube after light acid More
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Published: 15 January 2021
Fig. 19 Micrograph of an intergranular stress-corrosion crack (arrows) that partially penetrated the weld. The crack was filled with oxide. More
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Published: 01 December 1993
Fig. 2 Scanning electron micrograph of an intergranular stress-corrosion crack More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048158
EISBN: 978-1-62708-229-7
... torsional loading (along a plane 45 deg to the wire axis). Liquid-metal embrittlement was expected to have been caused by metals (Sn, Zn, Pb) which melt much below maximum service temperature of the turbine. The springs were concluded to have fractured by intergranular stress-corrosion cracking promoted...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0090277
EISBN: 978-1-62708-229-7
... Inconel Alloy 600 tubes. Tube support plates (TSP) separate the tubes and allow flow of the heating water/steam. Inconel Alloy 600 is susceptible to intergranular stress-corrosion cracking over time, so investigation included review of operational records, maintenance history, and procedures. It also...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001545
EISBN: 978-1-62708-236-5
... Abstract The presence of secondary, branching intergranular stress-corrosion cracking in a type 440C stainless bearing caused the analyst to overlook the real culprit, which was a mechanically-initiated, primary transgranular crack that propagated through the steel's hard chromium carbide...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001528
EISBN: 978-1-62708-219-8
... at a large automotive part manufacturing facility. The incident resulted in no personal injury. Results of the failure analysis show that the inner diameter (ID) of the tank displays a macroscopic web-like network of cracks that deceptively suggests intergranular stress corrosion cracking (IGSCC). Low...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001348
EISBN: 978-1-62708-215-0
... was equivalent to a 30% reduction in thickness. Residual stresses were measured at about 135 MPa (20 ksi). The HAZ was found to be sensitized. The tanks had been stored in a coastal atmosphere for about 4 years before installation. The failure was attributed to intergranular stress-corrosion cracking...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001536
EISBN: 978-1-62708-229-7
.... Analyses of four failed components from nuclear plants are then described to illustrate the kinds of failures seen in service. The failures discussed are (1) intergranular stress-corrosion cracking of core spray injection piping in a boiling water reactor, (2) failure of canopy seal welds in adapter tube...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001356
EISBN: 978-1-62708-215-0
... Abstract A shrunk-fit 18 Mn-5Cr steel retaining ring failed without warning during normal unit operation of a 380 MW electrical generator. The cause of the ring failure was determined to be intergranular stress-corrosion cracking (IGSCC) because of the high strength of the ring material...
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Published: 01 January 2002
Fig. 6 Cracks in heat-affected zones (HAZs) of type 410 stainless steel beneath weld deposits of ER308 stainless steel. (a) Section through the HAZ that was not tempered after welding showing an intergranular stress-corrosion crack. The weld deposit is at upper right. Electrolytically etched More
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
... a case history on IG fracture of steam generator tubes, where a lowering of the operating temperature was proposed to reduce failures. dimpled intergranular fracture grain boundaries hydrogen embrittlement intergranular brittle cracking intergranular fatigue intergranular stress-corrosion...
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Published: 01 January 2002
Fig. 14 Comparison of SCC and corrosion fatigue cracks in copper alloy C26000 (cartridge brass, 70%). (a) Typical intergranular stress-corrosion cracks in tube that was drawn, annealed, and cold reduced 5%. The cracks show some branching. H 4 OH plus H 2 O etch, 150×. (b) Typical transgranular More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001651
EISBN: 978-1-62708-229-7
... sulphates, ammonia, etc., and to run trials on one unit with tubes of other alloys such as 80-20 Cu-Ni or 70-30 Cu-Ni to evaluate their performance prior to any large scale retubing operations. Admiralty brass Stress-corrosion cracking Intergranular corrosion Dealloying/selective leaching...