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creep behavior

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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
... Abstract This article reviews the applied aspects of creep and stress-rupture failures. It discusses the microstructural changes and bulk mechanical behavior of classical and nonclassical creep behavior. The article provides a description of microstructural changes and damage from creep...
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
.... The article also reviews various factors related to creep behavior and associated failures of materials used in high-temperature applications. The complex effects of creep-fatigue interaction, microstructural changes during classical creep, and nondestructive creep damage assessment of metallic materials...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001816
EISBN: 978-1-62708-241-9
.... After the superplastic deformation, the steel presents mixed fractures: by decohesion of the hard (pearlite and carbides) and ductile (ferrite) phases and by intergranular sliding of ferrite/ferrite and ferrite/pearlite, just as it occurs in stage III creep behavior. The behavior is confirmed through...
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
... – 194 , 10.1007/978-90-481-2669-9_19 4. Nitta K. and Maeda H. , Creep Behavior of High-Density Polyethylene under a Constant True Stress , Polym. Test. , Vol 29 (No. 1 ), Feb 2010 , p 60 – 65 , 10.1016/j.polymertesting.2009.09.005 5. Kelly P. , “ Solid Mechanics...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006941
EISBN: 978-1-62708-395-9
... of different morphologies on the creep behavior of high-density polyethylene , RSC Advances , Vol 6 (No. 5 ), 2016 , p 3470 – 3479 10.1039/C5RA19224B 23. Williams M.L. , Landel R.F. , and Ferry J.D. , The Temperature Dependence of Relaxation Mechanisms in Amorphous Polymers...
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
..., environmental factors can create surface microcracks and reduce impact strength considerably. Table 4 is a summary of fracture behavior of various plastics. If the strain is constant, isometric creep curves ( Fig. 15i ) result. The graph is usually semi-log in time. Isometric creep data are used...
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
... . https://doi.org/10.31399/asm.hb.v11.a0003540 Creep Curve and Stress Rupture Visual Characteristics of Stress-Rupture Behavior on Turbine Blades HP Rotor Damage Introduction Microstructural Characteristics of Stress Rupture in Turbine Airfoils Fracture Characteristics of Stress...
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
... understanding of high-temperature failure of more complex structures. In the early days of mathematical modeling of creep behavior, it was believed that components operating in the creep regime spent the majority of their service lives in the secondary stage. Primary creep was considered to be too short...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006865
EISBN: 978-1-62708-395-9
...-displacement curve for a ductile polymer tested in uniaxial tension Fig. 1 Typical stress–strain curve for a fiber, a plastic, and an elastomer Fig. 2 Typical creep and creep rupture behavior of ductile polymers Fig. 3 Typical creep and creep rupture behavior of nonductile...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... <xref rid="a0003541-ref3" ref-type="bibr">(Adapted from Ref 3)</xref> Under circumstances in which metals may be regarded as purely elastic, polymers may deform nonelastically; that is, in a viscoelastic fashion. Their stress-strain response is nonlinear with time-dependent (creep) deformation; consequently, their fracture behavior...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001128
EISBN: 978-1-62708-214-3
... fracture mixed with cavities. These fracture morphologies were similar to those of an actual steam pipe. It was concluded that creep crack growth behavior was the prime failure mechanism of seam-welded steam pipes. Selected Reference Selected Reference • Creep and Stress Rupture Failures...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006932
EISBN: 978-1-62708-395-9
... Physical Aging Thermodynamic Equilibrium Ductile-Brittle Behavior Aging and Transition Behavior Aging and High-Strain Behavior Aging effects are apparent in small-strain creep experiments and in mechanical and dielectric measurements. In considering the failure of plastic parts...
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: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006921
EISBN: 978-1-62708-395-9
... on the creep-rupture behavior of plastics. This approach can be modified and used for any material for which stress rupture data is obtained and a quantitative relationship of stress to time-to-failure is established. Using the stress-rupture curve, the stress required for failure at a certain time can...
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
... in tensile strength, impact strength, and toughness have been observed for oxidation degradation extending only a short distance into a specimen ( Ref 14 , 15 ). Figure 2 illustrates this effect in polyethylene. Choi ( Ref 17 , 18 ) demonstrated that the creep rupture behavior of a polyethylene pipe...
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
... Fig. 1 Effect of environmental stress cracking agents on creep rupture performance Fig. 2 Effect of thin brittle film on stress-strain behavior of high-density polyethylene. Source: Ref 20 Fig. 3 Effect of surface embrittlement from varied UV exposure times on creep...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006940
EISBN: 978-1-62708-395-9
...-12, ASTM International , 2020 9. “ Metallic Materials—Fatigue Testing—Axial-Strain-Controlled Method ,” ISO 12106, International Organization for Standardization , 2017 , p 38 10. Amjadi M. and Fatemi A. , Creep and Fatigue Behaviors of High-Density Polyethylene (HDPE...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006930
EISBN: 978-1-62708-395-9
... polyethylene Fig. 26 Torsion rectangular geometry Fig. 27 DMA clamps Fig. 28 Example of creep and recovery with compression clamp Fig. 29 Stress ramp of a thermoplastic material on a DMA instrument Fig. 30 Iso-stress temperature ramp to mimic heat deflection...
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
... for the tests at 31.7-MPa. Figure 7 compares the strain-versus-time behavior for the ductile base metal with the brittle longitudinal seam-weld metal at 41.4-MPa and 665 C. The large tertiary creep strain accumulation in the base material is typical of service exposed materials tested at these low stress...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006849
EISBN: 978-1-62708-395-9
... to the resistance of a material to flow. The ratio of G ″ to G ′, known as tan δ, indicates elastic memory and recovery in the melt phase, as well as impact resistance and creep behavior in the solid regime. The complex modulus, G *, is determined by using vector analysis, and the complex viscosity, η*, is G...