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Creep fracture/stress rupture

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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... also discussed. The article describes the fracture characteristics of stress rupture. Information on various metallurgical instabilities is also provided. The article presents a description of thermal-fatigue cracks, as distinguished from creep-rupture cracks. creep-rupture cracks creep...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
... deformation, including stress-rupture fractures. It also describes metallurgical instabilities, such as aging and carbide reactions, and evaluates the complex effects of creep-fatigue interaction. The article concludes with a discussion on thermal fatigue and creep fatigue failures. aging carbide...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001726
EISBN: 978-1-62708-234-1
... Oxidation Swelling Tubes Carbon steel Creep fracture/stress rupture A carbon steel furnace tube which should have given good service for ten years ruptured after one year. Selected Reference • Creep and Stress Rupture Failures , Failure Analysis and Prevention , Vol 11 , ASM...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001000
EISBN: 978-1-62708-229-7
... detected. Superheaters Tube bends 1Cr-0.5Mo Creep fracture/stress rupture Rupture occurred at a bend in a superheated steam transfer line between a header and a desuperheater of a boiler producing 230 t/h of steam at 540°C and 118 kPa. The boiler had operated for 77,000 h. The geometry of the...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0060154
EISBN: 978-1-62708-234-1
... of local hot spots, the headers would survive for a reasonable period of time. Ammonia Chemical processing equipment Reformer furnaces Ultrasonic testing ASME SA452-TP316H Creep fracture/stress rupture ( Ref 1 ). A leak was detected in one of the coils in the radiant section of a...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001758
EISBN: 978-1-62708-241-9
... at carbides and other microconstituents, especially in single crystal castings that do not possess grain boundaries. gas turbine engine components creep deformation overheating nickel-base superalloy interdendritic stress-rupture fracture stress-rupture testing stress-rupture life Cast...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001279
EISBN: 978-1-62708-215-0
... outage. Boiler tubes Graphitization Mechanical properties ASME SA219-T1A UNS K12023 High-temperature corrosion and oxidation Creep fracture/stress rupture Reference 1. ASM Committee on Failures of Pressure Vessels, Boilers and Pressure Piping, G.M. Slaughter, Chairman...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048299
EISBN: 978-1-62708-229-7
... find the circuits with the greatest accumulation of debris and replacing them as necessary was recommended on an annual basis. Exfoliation Scale (corrosion) 1.25Cr-0.5Mo ASME SA213-T11 High-temperature corrosion and oxidation Creep fracture/stress rupture This particular pendant-style...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0060144
EISBN: 978-1-62708-234-1
... fissures caused by third-stage creep in tubes because of the cost involved in removing the catalysts. Cracking (fractoring) Radiography Reformer furnaces Tubes HK-40 UNS J94204 Creep fracture/stress rupture ( Ref 1 ). About 1 year after start-up, two steam-methane reformer furnaces were...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001738
EISBN: 978-1-62708-220-4
... thus the furnace) could be used safely during the foreseen production period. Ammonia Chemical processing equipment Manifolds Oxidation Steam reformers Incoloy 800H UNS N08810 Creep fracture/stress rupture DSM Fertilizers operates several production units in The Netherlands. One of...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048294
EISBN: 978-1-62708-234-1
... boiler circulation and high furnace temperatures were believed to have caused the prolonged overheating. Heat exchanger tubes Overheating Spheroidizing Superheaters 1.25Cr-0.5Mo ASME SA213-T11 Creep fracture/stress rupture Two instances of superheater rupture occurred about 10 days apart...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048289
EISBN: 978-1-62708-234-1
... disclosed by the wall thickness and OD of the tubing. The tubes were concluded to have failed due to rapid overheating. Boiler tubes Overheating Swelling ASME SA192 Creep fracture/stress rupture (Other, miscellaneous, or unspecified) failure After 7 months of service, two low-carbon steel...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001814
EISBN: 978-1-62708-241-9
...-in. thick vessel shell wall failed due to elevated temperature stress rupture (creep failure), which was indicated by the extensive bulging, microcracking, and void formation on its outside surface. Figure 24 shows the stress rupture voids near the outside surface. Microstructural assessment of the...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0048303
EISBN: 978-1-62708-236-5
... increased the actual operating stress. Tube wastage and high operating temperatures hastened the failure. A better understanding of the material condition of this superheater was recommended to verify all the suspect hot tubes. Overheating 2.25Cr-1Mo Creep fracture/stress rupture This example...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001735
EISBN: 978-1-62708-220-4
... showed the welds to be inadequate, and to have a strength and creep resistance below those of the base metal. Reformer furnaces Tubine Welded joints HK-40 UNS J94224 Creep fracture/stress rupture A sample tube was removed from a reformer furnace for life assessment after 69,000 h of...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0090114
EISBN: 978-1-62708-229-7
... Udimet 520 Creep fracture/stress rupture Thermal fatigue fracture High-temperature corrosion and oxidation This case history illustrates how to evaluate creep, oxidation, and TMF in a first-stage gas turbine blade. Often, it is necessary to estimate the temperature and the applied stress to...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001711
EISBN: 978-1-62708-229-7
... function of oxidation thickness, temperature and time, confirming the creep failure diagnostic. Boiler pipes Electric power generation Steam 10CrMo9-10 X20MoV12-1 Creep fracture/stress rupture References 1. Diaz A. , Plaza D. , Menéndez F. , Pero-Sanz...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001011
EISBN: 978-1-62708-229-7
... creep was not operative throughout the life of the equipment. Outlet tubes Overheating Oxidation Superheaters 2.25Cr-1Mo Creep fracture/stress rupture Thermal fatigue fracture After some 87,000 h of operation, failure took place in the bend of a steam pipe connecting a coil of the third...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
... explains the failure of pressure vessels with emphasis on stress-corrosion cracking, hydrogen embrittlement, brittle and ductile fractures, creep and stress rupture, and fatigue with examples. brittle fracture composite creep rupture ductile fracture fabrication failure analysis fatigue...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048846
EISBN: 978-1-62708-234-1
.... Bending stresses Electric power generation Steam lines Welded joints ASME SA335-P22 Intergranular fracture Creep fracture/stress rupture A main steam pipe was found to be leaking during a start-up after a 1-day shutdown. The leak was a large circumferential crack in a pipe-to-fitting weld in one...