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oxide-scale-based life prediction

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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
... evaluations, the creep cavitation damage assessment, the oxide-scale-based life prediction, and high-temperature crack growth methods. coating evaluation creep cavitation damage assessment elevated-temperature failure gas turbine blade hardness testing high-temperature crack growth methods life...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006781
EISBN: 978-1-62708-295-2
..., oxidation scale thickness, etc.), A is a material-specific lumped parameter that incorporates a diffusion coefficient, t is the time of high-temperature exposure, and n is a rate-limiting step-specific exponent. Note that in some alloy systems, notably nickel-base superalloys in which strengthening is...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004131
EISBN: 978-1-62708-184-9
... corrosion maintenance on military systems. Failure prediction techniques, namely, the equivalent pre-crack size approach, life-cycle cost modeling and simulation, and holistic life-prediction methodology, are also discussed. reliability aging full-scale structural testing corrosion maintenance...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002390
EISBN: 978-1-62708-193-1
... the life-fraction rule itself. The temperature-history information may be somewhat refined by supplemental information concerning the current oxide-scale thickness and microstructural details. In spite of such refinements, only gross estimates of creep damage are obtained using the calculation...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005950
EISBN: 978-1-62708-166-5
..., because the computational demands are very high and the heat treatment simulation literature still lacks a component-scale multiscale heat treatment simulation. Even though multiscale simulations are promising for heat treatment simulations with better predictive capability and accuracy, those approaches...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006823
EISBN: 978-1-62708-329-4
... sometimes extended all the way around the outer circumference of the vessel. Most of the corrosion scale, which had a laminated appearance, occurred on one of the columns and progressively decreased going from the top to the bottom guy wire and insulation supports. The metal without the corrosion scale had...
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
... right-hand corner of Fig. 3 are worth noting. In this regime, a cracked structure would experience large-scale plastic deformation prior to crack extension. Additional information is provided in the article “Failure Assessment Diagrams” in this Volume and in Ref 19 . Life assessment of...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005966
EISBN: 978-1-62708-166-5
... −10 Diffusivity values calculated using Eq 9 . Ignoring scale formation (oxides, etc.), the simplest models involve solving Fick's Second Law for the semi-infinite case, where the austenite is treated as if it were a plate with a thickness greater than twice the depth of the carbon...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003314
EISBN: 978-1-62708-176-4
.... , Thermo-Mechanical Fatigue Oxidation, Creep, Part I: Experiments , Metall. Trans. A , Vol 20 , 1989 , p 1755 – 1767 81. Neu R. and Sehitoglu H. , Thermo-Mechanical Fatigue Oxidation, Creep, Part II: Life Prediction , Metall. Trans. A , Vol 20 , 1989 , p 1769 – 1783 10.1007...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004145
EISBN: 978-1-62708-184-9
... their impact on aging management programs. The article reviews the effects of materials, environment, and stress factors on the cracking susceptibility of ferritic and austenitic structural alloys in BWRs. It describes the methods, such as data-based life-prediction approaches and mechanisms-informed...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002391
EISBN: 978-1-62708-193-1
.... , Fatigue Life Prediction under Thermal-Mechanical Loading in a Nickel Base Superalloy , Thermo-Mechanical Fatigue Behavior of Materials , STP 1186, Sehitoglu H. , Ed., ASTM , 1991 , p 3 – 16 137. Wlodek S.T. , The Oxidation of René 41 and Udimet 700 , Trans. Met. Soc. AIME , Vol...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002471
EISBN: 978-1-62708-194-8
... + ions in an acid environment ( Eq 3 ). Based on this reaction rate construction (known as an Evans diagram), and bearing in mind that the net oxidation and net reduction reaction rates must be equal, the corrosion current density ( i corr ) can then be predicted, and this result can be converted to...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003307
EISBN: 978-1-62708-176-4
... waste incineration industries are realizing a need for materials that can withstand increasingly more strenuous working environments for longer periods of time. While many of the methods used to predict the service life of a structural component involve tests based on the behavior of a material under...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002387
EISBN: 978-1-62708-193-1
... maintenance on a fixed time scale) is about 60% of the cost of corrective maintenance. Predictive maintenance (maintenance on a sliding time scale) is about 40% of the cost of corrective maintenance. Clearly, predictive maintenance or proactive maintenance is desirable. If inspection, maintenance and...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002476
EISBN: 978-1-62708-194-8
... relative contribution of various failure modes as a function of temperature and stress. Source: Ref 49 In addition to the determination of the Weibull shape and scale parameters discussed previously, analysis of time-dependent reliability in brittle materials necessitates accurate stress field...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002415
EISBN: 978-1-62708-193-1
...: (Eq 10) x A i = β _ i _ [ − ln ( 0.99 ) ] 1 / α ^ To obtain the S-N relationship, m levels of stress are employed with n specimens tested at each level of stress. The shape parameter and scale parameter (characteristic fatigue life) can be obtained...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006792
EISBN: 978-1-62708-295-2
... Contact Fatigue: Modelling and Atomic-Scale Characterisation , Acta Mater. , Vol 139 , 2017 , p 163 – 173 10.1016/j.actamat.2017.08.005 58. Fu H. and Rivera-Díaz-del-Castillo P.E. , A Unified Theory for Microstructural Alterations in Bearing Steels under Rolling Contact Fatigue...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005524
EISBN: 978-1-62708-197-9
... Peta-Scale Predictive-Science-Based Multi-Scale Modeling and Simulation System , Comput. Mech. , Vol 42 , 2008 , p 485 – 510 192. Storesund J. et al. , Creep Behavior and Life Time of Large Welds in 20 CrMoV 12 1—Results Based on Simulation and Testing , Int. J. Pressure Vessel...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002473
EISBN: 978-1-62708-194-8
...-temperature alloy design for oxidation resistance is based on the ability to form these three simple elemental oxide scales. Although more complex oxide phases, such as NiAl 2 O 4 and NiTa 2 O 6 may form on many commercial alloys, none are known to possess lower diffusion and growth rates than the single Al...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005411
EISBN: 978-1-62708-196-2
...: Ref 14 Nickel-base superalloys exhibit oxidation resistance by forming a protective oxide layer. These alloys are classified into those that form chromia and those that form alumina protective scales. The alumina-forming alloys have higher-temperature oxidation resistance. Ni 3 Al precipitates...