Ratcheting-creep interaction of advanced 9–12% chromium ferrite steel with anelastic effect

Zheng, Xiaotao; Xuan, Fu‐Zhen; Zhao, Peng

doi:10.1016/j.ijfatigue.2011.04.009

Cited by 47 publications

(18 citation statements)

References 22 publications

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“…The value D cr represents an average value determined from uniaxial strain controlled ''service-type'' experiments. It can be observed that higher temperature and longer hold times, see also [12], which mean a superposition of creep damage, lead to higher values of critical damage. Furthermore, the critical damage value is material specific as shown in [13] by creep fatigue life assessment of 1%Cr, 2%Cr, and 10%Cr steels with a phenomenological method.…”

Section: Discussionmentioning

confidence: 97%

A local extrapolation based calculation reduction method for the application of constitutive material models for creep fatigue assessment

Wang

Cui

Lyschik

et al. 2012

International Journal of Fatigue

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Section: Discussionmentioning

confidence: 97%

A local extrapolation based calculation reduction method for the application of constitutive material models for creep fatigue assessment

Wang

Cui

Lyschik

et al. 2012

International Journal of Fatigue

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“…Because both the creep strain and accumulated plastic strain increase at 473 K, the ratcheting strain is higher than that at room temperature. Zheng et al [18] defined a different way to calculate the creep strain and the ratcheting strain, and they also pointed out that the combination of stress, hold time, and temperature interactively influenced creep-ratcheting.…”

Section: Effects Of Peak Stress-holding Time and Temperature On Ratchmentioning

confidence: 99%

“…In the last two decades, the ratcheting behaviors of metals and alloys have been carried out by experiments and simulations . Simultaneously, the ratcheting experiments were also conducted for metal matrix composites, polymers, and polymer matrix composites . It has been shown that the ratcheting behavior is influenced by various factors such as mean stress, stress amplitude, stress rate, temperature, and so forth.…”

Section: Introductionmentioning

confidence: 99%

Uniaxial time‐dependent ratcheting behavior of bronze powder filled polytetrafluoroethylene at room and high temperature

Gao

et al. 2013

Polymer Engineering & Sci

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A series of tensile and ratcheting experiments for cold compaction polytetrafluoroethylene (PTFE) and bronze filled PTFE (PTFE/bronze) were conducted with Dynamic Mechanical Analyzer (DMA‐Q800) at room and high temperature (473 K). The effects of peak stress‐holding time, creep, recovery, mean stress history, stress‐rate history, and pretension on the ratcheting behavior of PTFE/bronze were investigated. It is found that longer peak stress‐holding time leads to larger ratcheting strain accumulation. In the meantime, the ratcheting strain accumulates more rapidly at high temperature and the influence of temperature is more obvious than that of the additive fraction of bronze. Creep strain produced during the uploading and the stress‐holding time only partially recovers in the unloading process. Moreover, prior lower stress rate enhances the deformation resistance and restrains the ratcheting of subsequent cycling at higher stress rate. The ratcheting strain in the subsequent cyclic loading at lower mean stress is also restrained by previous cyclic loading at higher mean stress. Finally, the elastic modulus increases and the ratcheting strain is restrained apparently after the pretension. In addition, the elastic modulus and ratcheting strain of the PTFE/bronze with both pretension and recovery are smaller than those with pretension but without recovery. POLYM. ENG. SCI., 54:1571–1578, 2014. © 2013 Society of Plastics Engineers

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“…Creep‐fatigue interaction is frequently simulated in laboratories by low‐cycle fatigue tests with hold periods at tensile or compressed strain, and creep ratcheting is similarly performed with a nonzero mean stress. A few studies on the interaction between creep and ratcheting are found in literatures . Zheng et al tested the creep‐ratcheting interaction of advanced 9% to 12% chromium ferrite steel and found that existence of an elastic creep recovery controlled the mechanism of deformation and failure.…”

Section: Introductionmentioning

confidence: 99%

Ratcheting‐fatigue behaviour of bainite 2.25Cr1MoV steel with tensile and compressed hold loading at 455°C

Zhao

Chen

et al. 2019

Fatigue Fract Eng Mat Struct

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The ratcheting behaviour of a bainite 2.25Cr1MoV steel was studied with various hold periods at 455°C. Particular attention was paid to the effect of stress hold on whole‐life ratcheting deformation, fatigue life, and failure mechanism. Results indicate that longer peak hold periods stimulate a faster accumulation of ratcheting strain by contribution of creep strain, while double hold at peak and valley stress has an even stronger influence. Creep strains produced in peak and valley hold periods are noticeable and result in higher cyclic strain amplitudes. Dimples and acquired defects are found in failed specimen by microstructure observation, and their number and size increase under creep‐fatigue loading. Enlarged cyclic strain amplitude and material deterioration caused by creep lead to fatigue life reduction under creep‐fatigue loading. A life prediction model suitable for asymmetric cycling is proposed based on the linear damage summation rule.

show abstract

Ratcheting-creep interaction of advanced 9–12% chromium ferrite steel with anelastic effect

Cited by 47 publications

References 22 publications

A local extrapolation based calculation reduction method for the application of constitutive material models for creep fatigue assessment

A local extrapolation based calculation reduction method for the application of constitutive material models for creep fatigue assessment

Uniaxial time‐dependent ratcheting behavior of bronze powder filled polytetrafluoroethylene at room and high temperature

Ratcheting‐fatigue behaviour of bainite 2.25Cr1MoV steel with tensile and compressed hold loading at 455°C

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