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creep fracture

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Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000616
EISBN: 978-1-62708-181-8
...; fatigue and creep fractures; simultaneous metallographic-fractographic evaluation; and effect of thermal cycling on fatigue fracture. creep fracture fatigue fracture gas-turbine wheel hydrogen-embrittlement fracture nickel-base superalloys Hydrogen-embrittlement fracture of a single-cyrstal...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000610
EISBN: 978-1-62708-181-8
... candy fracture, cleavage fracture, brittle fracture, high-cycle fatigue fracture, fatigue striations, hydrogen-embrittlement failure, creep crack propagation, fatigue crack nucleation, intergranular creep fracture, torsional overload fracture, stress-corrosion cracking, and grain-boundary damage...
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
... are 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 Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
... is provided in Table 1 . Fracture mode identification chart Table 1 Fracture mode identification chart Method Instantaneous failure mode (a) Progressive failure mode (b) Ductile overload Brittle overload Fatigue Corrosion Wear Creep Visual, 1 to 50× (fracture surface) Necking...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
... overload Fatigue Corrosion Wear Creep Visual, 1 to 50× (fracture surface) Necking or distortion in direction consistent with applied loads Dull, fibrous fracture Shear lips Little or no distortion Flat fracture Bright or coarse texture, crystalline, grainy Rays...
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
... increased strain rate with rapid extension to fracture in the third stage of tertiary creep. Constant-stress tests (as opposed to constant-load tests) often do not show tertiary behavior. Fig. 3 Stages of creep deformation. (a) Strain curve for the three stages of creep under constant-load testing...
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
.... It discusses the key concepts of elevated-temperature design. These include plastic instability at elevated temperatures; deformation mechanisms and strain components associated with creep processes; stress and temperature dependence; fracture at elevated temperatures; and environmental effects. The article...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002460
EISBN: 978-1-62708-194-8
... of the crack tip. Concurrent with yielding, the crack tip is blunted. Source: Ref 4 Fig. 32 (a) Stress-creep fracture times for an iron-base alloy at different temperatures. Source: Ref 11 . (b) Larson-Miller master plot of the same data. This diagram permits fracture times to be estimated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
...): This article introduces the topic of fractography and the interpretation of fracture surfaces. The basic types of fracture processes (ductile, brittle, fatigue, and creep) are described briefly, principally in terms of fracture appearances (as sometimes affected by the microstructure). More in-depth coverage...
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
... comparable to that of base metal. Source: Saxena, Han, and Banerji, “Creep Crack Growth Behavior in Power Plant Boiler and Steam Pipe Steels, ” EPRI Project 2253-10, published in Ref 17 Table 4 Comparison of fracture mechanics elements for room-temperature and high-temperature crack growth...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003287
EISBN: 978-1-62708-176-4
... by which creep deformation occurs. References 1. Nix W.D. and Gibeling J.C. , Mechanisms of Time-Dependent Flow and Fracture of Metals , Flow and Fracture at Elevated Temperatures , Raj R. , Ed., American Society for Metals , 1985 , p 1 – 63 2. Ilschner...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... (ductile, brittle, fatigue, and creep) are described briefly, principally in terms of fracture appearances. A description of the surface, structure, and behavior of each fracture process is also included. The article provides a framework from which a prospective analyst can begin to study the fracture...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003288
EISBN: 978-1-62708-176-4
... the creep behavior of the material as a function of time. This may include creep tests and/or creep-rupture tests. Creep tests measure the amount of creep strain as a function of time, while creep-rupture tests measure the time to fracture for a given temperature and stress levels. Both tests have...
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 temperature and orientation. (a) 760 °C (1400 °F). (b) 980 °C (1800 °F). Source: Ref 42 Abstract This article discusses fracture, fatigue, and creep of nickel-base superalloys with additional emphasis on directionally solidified and single-crystal applications. It analyzes the physical metallurgy...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003540
EISBN: 978-1-62708-180-1
... Dimpled IG fracture refers to the cases when microvoid coalescence occurs in (or perhaps adjacent to) grain boundaries from conditions such as creep cavitation or void nucleation at precipitates in the grain boundaries. The term IG brittle fracture is used when the grain surface does not have...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003291
EISBN: 978-1-62708-176-4
.... , Assessment of an Improved Multiaxial Strength Theory Based on Creep-Rupture Data for Type 316 Stainless Steel , J. Pressure Vessel Technol. (Trans. ASME) , Vol 115 , May 1993 , p 177 – 184 10.1115/1.2929513 3. Cane B.J. , Creep Damage Accumulation and Fracture under Multiaxial Stresses...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
... ). Grain facets may also be masked, such as by oxides, as is common of IG creep fracture surfaces. Fig. 1 Scanning electron microscopy images of (a) intergranular fracture in ion-nitrided layer of ductile iron (ASTM 80-55-06), (b) transgranular fracture by cleavage in ductile iron (ASTM 80-55-06...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001831
EISBN: 978-1-62708-181-8
... ( Ref 37 , 38 , 39 ), molecular gas pressure ( Ref 40 ), the rupture of protective films ( Ref 41 , 42 ), and anodic dissolution at active sites ( Ref 43 ) are associated with hydrogen embrittlement and stress-corrosion cracking (SCC). Decohesive rupture resulting from creep fracture mechanisms...
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
... will occur as soon as a part is loaded, if the reagent is already present on the surface of a previously unstressed part. Stress cracking reagents also impact the creep rupture properties of plastics by shortening the time for brittle fracture to occur over that which exists in the absence of the reagent...
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
... abilities at temperatures reaching 1370 °C (2500 °F), which is well beyond the operational limits of most conventional metal alloys. However, a penalty is paid in that these materials typically exhibit low fracture toughness, which is usually defined by a critical stress intensity factor, and typically...