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creep crack growth test

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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
... Abstract Predicting the service life of structural components involves creep-fatigue crack growth (CFCG) testing under pure creep conditions. This article provides a discussion on the loading condition and the type of ductile and brittle material showing creep behavior. It focuses...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002389
EISBN: 978-1-62708-193-1
... specimens of 63.5 mm (2.5 in.) thickness in which crack growth occurred in small-scale, transition, and extensive creep regimes. Source: Ref 51 Fig. 12 Creep crack growth rate for chromium-molybdenum steels (tested at 1000 to 1022 °F) compiled from various laboratories. Source: Ref 7...
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
...” and “Creep Crack Growth Testing” in this Volume. Microscopic-sized fatigue cracks tend to nucleate quite early in cyclic life (in the first 1–10%) in the high-strain, plasticity-dominated, low-cycle life regime. In this regime, cyclic plasticity is widespread throughout the specimen test section...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... Abstract This article reviews the various types of mechanical testing methods, including hardness testing; tension testing; compression testing; dynamic fracture testing; fracture toughness testing; fatigue life testing; fatigue crack growth testing; and creep, stress-rupture, and stress...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004170
EISBN: 978-1-62708-184-9
..., fretting, stress-corrosion cracking, and whisker growth. The article presents effective measures for minimizing the moisture retention in hermetic packages and/or moisture ingress in plastic packages. It concludes with information corrosion tests. References 1. Amerasekera E.A. and Najm...
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: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003321
EISBN: 978-1-62708-176-4
... at elevated temperatures where creep damage can occur. It is directly related to the crack growth properties of the material, and is discussed in the article “Creep Crack Growth Testing” in this Volume. In general, materials are classed as being either creep-ductile materials (iron-base materials fall...
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
... 2 . (b) Both the as-processed and the used materials were tested. Sources: As listed. Table 3 Creep crack growth constants b and m for various ferritic steels Material b m Upper scatter line Mean Upper scatter Mean BU (a) SI (b) BU (a) SI (b) All...
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
... the initial portion of the test during which the creep zone evolves in size and shape, but the results do converge after substantial amounts of crack growth have occurred. Figure 8(b) shows the same data plotted against a parameter based on K but modified to include the size of the creep zone, K...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001477
EISBN: 978-1-62708-173-3
... specimens tested in air ( Ref 24 , 25 ). All of the techniques described thus far relate to life prediction from a crack-initiation point of view. For heavy-walled components, the initiation criteria must be combined with crack-growth data to perform a fracture mechanics analysis of remaining life...
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
... to retard the increased flow of metal. It also may correspond to the onset of necking in some alloys. In service or in creep testing, tertiary creep may be accelerated by a reduction in cross-sectional area resulting from cracking or necking. Environmental effects, such as oxidation, that reduce cross...
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
..., 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 can involve evaluation of both creep strength (i.e., creep rate, stress...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002410
EISBN: 978-1-62708-193-1
... of these alloys. The effects of grain boundary and grain size on failure are summarized. The article also discusses the effects of microstructure and extrinsic parameters on fatigue crack propagation (FCP). It details the modeling of FCP rates and creep and creep-fatigue crack growth rates. References 1...
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
... Growth , American Society for Testing and Materials , 1976 12. Dowling N.E. , Geometry Effects and the J-Integral Approach to Elastic-Plastic Fatigue Crack Growth , Cracks and Fracture , American Society for Testing and Materials , 1976 13. Lerch B.A. , Jayaraman N...
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
... to the calculation and testing results) Germany Presence of nonrepairable cracks Consumption of total theoretical creep life and/or total theoretical fatigue life, unless safe, continued operation can be demonstrated Attainment of a permanent set of 2%, if reference measurement results were available from...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
... of creep, will often display readily visible surface cracks at locations away from the main fracture. Fig. 9 Macrographs (at 2.5×) and micrographs of AISI Type 1040 carbon steel Gleeble-test samples Service failures that occur solely by ductile fracture are relatively infrequent. When...
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
... c = 1 − ( 1 − N / N c ) q + 1 206 Isothermal D = Σ N N f + Σ ε ˙ ε f ε ˙ = creep strain rate, ε f = creep ductility p,q = constants, N f = cycles to failure 207 Isothermal: void growth at crack tips...
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
.... Dowling N.E. and Begley J.A. , Fatigue Crack Growth Under Gross Plasticity and J-Integral , Mechanics of Crack Growth , STP 590, American Society for Testing and Materials , 1976 , p 82 – 103 17. Dowling N.E. , Geometry Effects and J-Integral Approach to Elastic-Plastic...
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
... as creep rupture. Most brittle fractures of steels occur because structural components are operating at temperatures below the ductile-brittle transition temperature or the nil-ductility transition temperature. Consequently, the structure is unable to maintain subcritical crack growth and failure...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002472
EISBN: 978-1-62708-194-8
... 5 – 36 54. Sadananda K. and Shahinian P. , The Effect of Environment on the Creep Crack Growth Behavior of Several Structural Alloys , Mater. Sci. Eng. , Vol 43 , 1980 , p 159 – 168 10.1016/0025-5416(80)90143-3 55. Bain K.R. and Pelloux R.M. , Effect...