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creep-rupture properties

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001669
EISBN: 978-1-62708-229-7
..., and replication to determine if, and to what extent, new repairs will be necessary. Post-Exposure Creep-Rupture Properties Post-exposure creep-rupture testing was performed on uniaxial creep-rupture specimens machined from the boat specimens. Three creep specimens were obtained from each boat specimen...
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
...-operating conditions with available data on creep, stress-rupture, tension, elevated-temperature fatigue, and thermal fatigue properties. Such an analysis is usually sufficient for most failure investigations, but a more thorough analysis may be required when stress, time, temperature, and environment have...
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
... with available data on creep, stress-rupture, tension, elevated-temperature fatigue, and thermal fatigue properties. Such an analysis is usually sufficient for most failure investigations, but a more thorough analysis can be required when stress, time, temperature, and environment have changed the metallurgical...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003550
EISBN: 978-1-62708-180-1
... includes such things as tensile and impact strengths. Long-term properties include creep, stress relaxation, and creep (stress) rupture. Both categories of properties are affected by exposure to external chemical environments. With any polymeric material, chemical exposure may have one or more...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001004
EISBN: 978-1-62708-229-7
... steels” , metal science , 17 , ( 1983 ) pp 389 – 396 . 10.1179/030634583790420718 8. Burke P.R. & Howe A.A. “Creep Rupture Properties of Welded 1/2 Cr 1/2 Mo 1/4 steels with additions of Titanium and two levels of phosphorus” , Creep & Fracture of Engineering Materials...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006807
EISBN: 978-1-62708-329-4
... regime may be considered to have reached its end of life when: Rupture occurs. The deformation becomes excessive. Latent flaws or initiated cracks grow at unacceptable rates by creep or creep/fatigue. Creep Curve Ever since creep was recognized as a concern in the design of high...
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
... true in the high pressure (HP) turbine region of the engine where actual metal surface temperatures of the turbine blades (buckets) can exceed 2000 ° F ∼ 0.75 T m , making creep and stress-rupture properties one of the more important variables in the overall life of the blade...
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 Background Applications The superheater tubes were from a utility boiler, a base-loaded unit that had been in service for 13...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
... are often conducted on time-dependent failure mechanisms. The principal types of elevated-temperature failures are stress rupture, creep, low- or high-cycle fatigue, thermal fatigue, and coating degradation in gas turbines. For high-temperature tubing and piping components, embrittlement phenomena can occur...
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
... were found contain small cracks and microvoids. A mechanism of intergranular creep rupture at elevated temperature was identified as a result of a series of stress-rupture and tensile tests. It was revealed by the crack shape that cracking initiated on the pipe exterior, then propagated inward...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006867
EISBN: 978-1-62708-395-9
... of short-term properties includes such things as tensile and impact strengths. Long-term properties include creep, stress relaxation, and creep (stress) rupture. Both categories of properties are affected by exposure to external chemical environments. With any polymeric material, chemical exposure may...
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...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001687
EISBN: 978-1-62708-220-4
... properties. Grain boundary sliding and dislocation motion were enhanced, causing a local increase in the steady state strain rate and the premature failure of the tube. Grain boundary sliding Plastic deformation Spalling Voids HK UNS J94224 Creep fracture/stress rupture The petrochemical...
Image
Published: 01 June 2019
Fig. 9 Comparison of stress-rupture properties for service exposed header base material, creep-damaged longitudinal seam-weld metal, and virgin steel tubes at 650 C. More
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006921
EISBN: 978-1-62708-395-9
..., then the service lifetime can be estimated. The stress rupture data can also be used to rank materials, so the material with the best long-term properties can be selected. Creep and Creep Rupture Testing Polymer materials present challenges in the prediction of lifetime service due to their viscoelastic...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001771
EISBN: 978-1-62708-241-9
... ]. Because of exposure of tube at elevated temperature, carbon diffusion could promote formation of continuous and/or separated carbides in grain boundary and matrix [ 5 , 6 ]. These carbides decrease the creep resistance and ductility at high temperature. After a fraction of service life, a rupture...
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
..., as a 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 Introduction Carbon steels are not adequate for boiler pipes, which must work for long times...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001330
EISBN: 978-1-62708-215-0
.... Boiler tubes Creep rupture Mechanical properties Overheating UNS K21590 UNS K01201 2.25Cr-1Mo ASTM A213 grade T22 ASTM A192 Creep fracture/stress rupture Background Two tubes from the superheater section of a two-drum boiler failed while in service. The tubes were identified as being...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006934
EISBN: 978-1-62708-395-9
... method, one of the most common to describe the material deformation and rupture time, is also discussed. Burgers power-law model creep failure Findley power-law model Larson-Miller parametric method material deformation polymers rupture time service life stress relaxation time-stress...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006928
EISBN: 978-1-62708-395-9
... of plastic film and thin sheeting by a single tear method D2990 899-1,2 Tensile, compressive, and flexural creep and creep-rupture of plastics D3763 6603-2 High-speed puncture properties of plastics using load and displacement sensors D4065 6721-1 Determining and reporting dynamic mechanical...