1-20 of 107 Search Results for

remaining life assessment

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
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
... tube remaining life 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...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001288
EISBN: 978-1-62708-215-0
... tons. It was recommended that the remaining life of similar presses be assessed periodically controlling the cracks, their dimensions, and their propagation rates. An increase in the radius of the fillet was also recommended. Cast steel - 52 Carbon steel casting Fatigue fracture Hydrogen...
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
... or erosion were observed. Log stress versus Larson-Miller Parameter (LMP) plots were produced to assess the remaining life of the superheater. It was revealed that the estimated operating temperature of 1060 deg F was higher than the estimated design temperature of 1000 deg F and that the tube wastage had...
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
... of blades. It is important to assess the condition of blades periodically and to estimate the remaining life to provide guidelines for replacement or reconditioning of the blades. A properly managed life assessment and refurbishment program can extend the life of present and future turbines by many years...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001079
EISBN: 978-1-62708-214-3
... accumulation in highly stressed critical locations. Although the actual reported number of failures is quite small (about 30 in the entire world), the consequence of such failures is so serious and expensive that any failure rate is unacceptable. Therefore, periodic inspection, remaining life assessment...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
... an overview of the prevalent life assessment methodologies for structural components. Because the failure analyst is often asked questions concerning remaining life, fitness-for-service, inspection intervals, and reliability of structural components and equipment, it is necessary that the failure analyst...
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
... turbine engines Oxide-dispersion-strengthened nickel-base alloys 1350–1400 0.55–0.65 Correlation of damage level and life fraction consumed Table 3 Correlation of damage level and life fraction consumed Damage level Consumed life fraction range X Remaining life factor (1/ X...
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
... or at preexisting defects in the component. In these cases, most of the life of the component is spent in crack growth. This involves assessment of fracture resistance rather than a strength assessment based on bulk creep rates and time to stress rupture. Therefore, creep life assessment may involve evaluation...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003516
EISBN: 978-1-62708-180-1
... variables involved in fatigue-life assessment, which describe the effects and interaction of material behavior, geometry, and stress history on the life of a component. It compares the safe-life approach with the damage-tolerance approach, which employs the stress-life method of fatigue life assessment...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003515
EISBN: 978-1-62708-180-1
...Abstract Abstract This article provides information on life assessment strategies and conceptually illustrates the interplay of nondestructive evaluation (NDE) and fracture mechanics in the damage tolerant approach. It presents information on probability of detection (POD) and probability...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003546
EISBN: 978-1-62708-180-1
... interact in a TMF cycle in ways that are never encountered in conventional fatigue testing, which makes life prediction under TMF conditions particularly challenging. Nevertheless, techniques have been proposed, validated, and introduced into practice that provide reasonable assessment of remaining life...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001594
EISBN: 978-1-62708-229-7
... loading on the pipe may augment the cyclic stress. Response to a Crack Discovered by NDI Response to a Leak Estimating Remaining Service Life The fact that cracks grow from detectable size to through-wall in just a few days, possibly a few hours, means inspection intervals would have...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003554
EISBN: 978-1-62708-180-1
... of Cold Work on the Liquid Metal Induced Embrittlement of Brass by Gallium,” ICF9, Conf. Advances in Fracture Research , 1–5 April 1997 ( Sydney, Australia ), and published in Failure Analysis, Remaining Life Assessment, Life Extension and Repair , Vol 1 , Elsevier Science Ltd. , Oxford, U.K...
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
.... McCabe, American Metallurgical Consultants [ 2 ] Stress-rupture testing is commonly performed in place of creep testing to more quickly assess creep properties of a material and is always run to specimen separation. As shown in Fig. 4 [ 2 ], rupture life decreases with increasing temperature...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003528
EISBN: 978-1-62708-180-1
.... , Shot Peening Theory and Application , IITT-International , 1989 , p 241 – 255 39. Throop J.F. et al. , “Residual Stress Effects in Fatigue,” STP 776, ASTM , 1982 10.1520/STP776-EB 40. Reedsmeyer H.S. , Life Assessment Under Variable Amplitude Loading , Fatigue...
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
... to 552 °C (800 to 1025 °F). The temperature was calculated using the known wall thickness and service life on the tube, a plot of Larson-Miller parameters for the tube material, and the following assumptions: Only stresses due to internal pressure were present Operating pressure remained...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001737
EISBN: 978-1-62708-229-7
... that the casing could be welded successfully, it was suggested that the remaining useful life was effectively exhausted and that it should be replaced. Thermal stresses produced during operation would rapidly result in additional cracks. Casings Gas turbines Thermal stresses 321 UNS S32100 Creep...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006768
EISBN: 978-1-62708-295-2
.... et al. , “ Residual Stress Effects in Fatigue ,” STP 776, ASTM , 1982 10.1520/STP776-EB 50. Reedsmeyer H.S. , Life Assessment under Variable Amplitude Loading , Fatigue and Fracture Analysis of Ship Structures , Fleet Technologies Limited , 1998 51. Matsui K. et al...
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
... of In-Place Analysis ,” Microstructural Science , Vol. 12 , ASM , Metals Park, OH , pp. 537 – 549 ( 1985 ). 2. Roberts B. W. et al. , “ Metallographic Techniques for Estimation of Residual Creep Life ,” to be published in Proceeding of EPRI Conference on Life Extension and Assessment...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006786
EISBN: 978-1-62708-295-2
.../BF00726455 • Clegg R.E. and Jones D.R.H. , “The Effect of Cold Work on the Liquid Metal Induced Embrittlement of Brass by Gallium,” ICF9, Conf. Advances in Fracture Research, April 1–5, 1997 (Sydney, Australia), and published in Failure Analysis, Remaining Life Assessment, Life Extension...