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accelerated creep testing

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Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003289
EISBN: 978-1-62708-176-4
... of required creep-rupture properties based on insufficient data. Methods for evaluation of remaining creep-rupture life, including parametric modeling, isostress testing, accelerated creep testing, evaluation by the Monkman-Grant coordinates, and the Materials Properties Council (MPC) Omega method, are also...
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
... information on the common aging mechanisms of polymeric materials and the common accelerated testing methods used to obtain relevant data that are used with the prediction models that enable service life assessment. Beginning with a discussion of what constitutes a product failure, this article then reviews...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003290
EISBN: 978-1-62708-176-4
... be insufficiently accurate. The bolting problem is the most commonly cited example. In contrast, the accelerated tests are designed to give comprehensive information on the creep strength of the material, which can then be used in many ways. It provides an alternative to the traditional creep test as a basis...
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
... phase transformations, stress accelerations approaching the yield strength of the material at the test temperature, increased oxidation of the test specimen due to temperature acceleration, and/or changes in the creep deformation mechanism. While it may not always be possible to eliminate these concerns...
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.a0006909
EISBN: 978-1-62708-395-9
... between accelerated test temperature and service temperature increases. Fig. 3 Creep data obtained for polyoxymethylene at 50 °C (122 °F) and shifted to longer times at 23 °C (73 °F) using the Arrhenius equation are in good agreement with experimental data obtained at 23 °C. Source: Ref 11...
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
... strain accumulation preceding fracture can vary widely with a variety of operational material parameters and with stress state. A common method of estimating the remaining creep life is to conduct accelerated rupture tests at temperatures well above the service temperature. The stress is kept...
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
... selection and the setting of basic design rules. The article examines the limitations of high-temperature components as well as the alternative design approaches and tests for most high-temperature components. creep creep rupture deformation elevated-temperature design high temperature...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006964
EISBN: 978-1-62708-439-0
... m = ~0.4 to 0.55, where T is the testing temperature, and T m is the melting temperature) and high normalized tensile stress (i.e., σ/μ = ~10 −3 to 10 −2 , where σ is the testing stress, and μ is the shear modulus), creep deformation is normally dislocation-dominant. In such conditions...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002413
EISBN: 978-1-62708-193-1
... solder joint reliability. These include the accelerated thermal cycling test and isothermal mechanical deflection system test. accelerated thermal cycling test isothermal fatigue isothermal fatigue life isothermal fatigue testing isothermal mechanical deflection system test solder joint...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001035
EISBN: 978-1-62708-161-0
... and 10,000 h at the indicated temperature for specimens of normalized 0.17% C steel exposed to the test temperature (without stress) for 83,000 h and for similar specimens not exposed to elevated temperature prior to testing Creep-Resistant Low-Alloy Steels Creep-resistant low-alloy steels usually...
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
... to the questions. Figure 6 shows the finite-element simulation of the development of a crack-tip creep zone in a compact-type specimen of 2519 aluminum alloy (UNS A92519). In this simulation, the crack tip is advanced by releasing nodes at a rate measured in an actual test conducted under loading and temperature...
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
... held constant at a given temperature. Stress relaxation testing is thus a complementary creep-test method that, in a short time, can generate creep-rate data as a function of stress covering five or more orders of magnitude in creep rate (see the section “Accelerated Testing” in the article “Stress...
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
...., tearing) may influence the creep-fatigue damage process in positive R load-controlled tests. Therefore, the apparent accelerations in crack growth rate associated with the hold time (creep damage) may be a result of, for example, stable tearing effects due to large deformations caused by ratcheting...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006917
EISBN: 978-1-62708-395-9
... urethanes ( Ref 25 ). It appears likely that the rubber particles blunt the propagating crack, thus interfering with fracture extension. Chemical Factors Environmental stress cracking is analogous to creep rupture, with the cracking accelerated by a chemical agent. “As most fluids have a greater...
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
... Abstract This article focuses on the subject of proactive or predictive maintenance with particular emphasis on the control and prediction of corrosion damage for life extension and failure prevention. It discusses creep life assessment from the perspective of creep-rupture properties...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003266
EISBN: 978-1-62708-176-4
... Abstract This article emphasizes short-term tension and compression testing of metals at high temperatures. It describes the effect of temperature on deformation and strain hardening, occurrence of high-temperature creep in structural alloys, and the performing of mechanical testing for high...
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
... with information corrosion tests. corrosion corrosion control corrosion tests fretting galvanic corrosion pitting corrosion stress-corrosion cracking uniform corrosion microelectronics creep corrosion dendrite growth whisker growth moisture retention TREMENDOUS TECHNOLOGICAL ADVANCES have...
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 Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
... and destructive testing, chemical analysis Loading direction can show failure was secondary Short-term, high-temperature, high-stress rupture has ductile appearance (see creep) Load exceeded the dynamic strength of the part Check for proper alloy and processing, as well as proper toughness, grain...