Hold-time effects on elevated-temperature low-cycle-fatigue and crack-propagation behaviors of HAYNES® 188 superalloy

Lee, S. Y.; Lu, Yu‐Lin; Liaw, Peter K.; Chen, L. J.; Thompson, Scott; Blust, J.W.; Browning, P.F.; Aurrecoechea, José M.; Klarstrom, D. L.

doi:10.1007/s10853-009-3391-1

Cited by 15 publications

(6 citation statements)

References 23 publications

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“…1(b) and (c), exhibit the average composition of the matrix, and tungsten-rich carbide particles, respectively. These results of tungsten-rich carbide particles verify that they present M 6 C-type primary carbide particles, as reported in previous studies [22,23].…”

Section: Base Materials Microstructuresupporting

confidence: 92%

Assessment of the effects of heat input on microstructure and mechanical properties in laser beam welded Haynes 188 undermatched joints

Odabasi

Ünlü

Göller

et al. 2013

Materials Science and Engineering: A

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Section: Base Materials Microstructuresupporting

confidence: 92%

Assessment of the effects of heat input on microstructure and mechanical properties in laser beam welded Haynes 188 undermatched joints

Odabasi

Ünlü

Göller

et al. 2013

Materials Science and Engineering: A

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“…Therefore, the high stress acts on the substrate, and this causes more cracks to originate in the substrate. Fatigue cracking is influenced by surface condition, mean stress, frequency, and temperature [22], hold time at the maximum strain [23] etc. The crack initiation and propagation is general divided to three steps in this experiment: crack initiation in surface of the coating; propagation through the coating; initiation and propagation in the substrate.…”

Section: Resultsmentioning

confidence: 99%

Failure behavior of coated nickel-based superalloy under thermomechanical fatigue

et al. 2009

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Thermomechanical fatigue (TMF) is a major life limiting factor for gas turbine blades. In this study, the failure behavior of NiCrAlY overlay coated nickel-based superalloy M963 was investigated under out of phase (OP) TMF. All tests were carried out under mechanical strain control with a cyclic period of 200 s. Results revealed that the fatigue life of high velocity oxygen fuel spraying (HVOF) coated specimen was longer than that of air plasma spraying (APS) coated one, but shorter than that of bare superalloy M963 at a given strain range. It was found that cracking process in the APS coating was different from that in the HVOF coating, which was shown by the sketches to understand the crack initiation and propagation behavior.

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“…However, the temperature and the tensile stress under multiaxial thermo-mechanical loading are not constant and change with time. The related studies (Berling and Conway, 1969;Lee et al, 2009) showed that the compressive loading had so little influence on creep damage for some materials that could be ignored, so it is assumed that compressive loading had no influence on the creep damage in this paper, that is, it only needs to consider the creep damage caused by the tensile loading. The calculation process is as follows:…”

Section: Calculation Of Creep Damagementioning

confidence: 99%

Life prediction approach based on the isothermal fatigue and creep damage under multiaxial thermo-mechanical loading

Ren

Shang

et al. 2018

International Journal of Damage Mechanics

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Based on the isothermal fatigue and creep damage, a life prediction approach under multiaxial thermo-mechanical loading was proposed in this investigation. In the proposed method, the multiaxial thermo-mechanical fatigue damage during one cycle period was divided into the isothermal fatigue damage and the creep damage. In order to evaluate conservatively, the isothermal fatigue damage during one cycle period was calculated by using multiaxial fatigue damage model at the maximum temperature during the whole period, and the creep damage during one cycle period was calculated by accumulating the creep damage of all portions originated from the divided time history for the axial load component and temperature history. The life prediction results by the proposed model showed a good agreement with experimental data for nickel-base alloy GH4169 and cobalt-base Haynes188 under axial-torsional thermo-mechanical loading.

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Hold-time effects on elevated-temperature low-cycle-fatigue and crack-propagation behaviors of HAYNES® 188 superalloy

Cited by 15 publications

References 23 publications

Assessment of the effects of heat input on microstructure and mechanical properties in laser beam welded Haynes 188 undermatched joints

Assessment of the effects of heat input on microstructure and mechanical properties in laser beam welded Haynes 188 undermatched joints

Failure behavior of coated nickel-based superalloy under thermomechanical fatigue

Life prediction approach based on the isothermal fatigue and creep damage under multiaxial thermo-mechanical loading

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