An influence of cyclic loading on the form of constitutive relationship for DP500 steel

Moćko, W.; Grzywna, Paweł; Kowalewski, Zbigniew L.; Radziejewska, Joanna

doi:10.1016/j.matdes.2016.04.075

Cited by 25 publications

(13 citation statements)

References 14 publications

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“…Conversely, in terms of the steels characterized by initial cyclic hardening and subsequent softening (304, 18,19 316L, 20 DP500, 21 AISI 1045, 22 and AISI 321 23 steel), their strengths would be greatly enhanced during prior cycling because of dynamic strain aging or austenite/martensite transformation. Hence, determining the optimal pre‐cycling lifetime fraction corresponding to the highest remnant strength and revealing corresponding strengthening mechanisms are crucial for structural material design.…”

Section: Introductionmentioning

confidence: 99%

Remnant tensile and creep properties of aluminized AISI 321 austenite stainless steel under prior creep–fatigue interaction

Chen

et al. 2022

Fatigue Fract Eng Mat Struct

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Aluminized AISI 321 steels applied as heat exchange tube are generally subjected to creep-fatigue (C-F) exposure during service. Remaining tensile and creep performance of this steel at 620 C were therefore studied under prior C-F deformation. Results revealed that residual properties exhibit an initial increase and followed degradation with rising lifetime fraction of prior C-F.The tensile strength and creep lifespan reach highest at 30% lifetime fraction, since dislocation cell networks are well developed and secondary nanotwins are activated at substrate. Additionally, dynamic recovery and wavy slips occurred in coatings partially accommodate local plastic deformations and inhibit defect initiations, avoiding premature material fracture. On the other hand, these networks could restrain the increase in coating thicknesses. When the lifetime fraction of prior C-F increases to 80%, declined remnant properties are observed, which is attributed to the recovery of dislocation cells and carbide coarsening. Meanwhile, coating microcracks also accelerate steel failure.

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Section: Introductionmentioning

confidence: 99%

Remnant tensile and creep properties of aluminized AISI 321 austenite stainless steel under prior creep–fatigue interaction

Chen

et al. 2022

Fatigue Fract Eng Mat Struct

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“…Therefore, it is significant to evaluate the effect of prior fatigue loading on remnant tensile and creep properties to ensure the safety of high temperature components. Previous works have revealed that the material tensile and creep properties could be altered by prior LCF loading [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. However, the studies about the influence of prior C-F loading on subsequent tensile and creep properties are still limited.…”

Section: Introductionmentioning

confidence: 99%

“…Rubio et al [8][9][10][11] investigated the effect of prior LCF loading on subsequent tensile behavior of 6061-T6 aluminum alloy and AISI 4140T steel and found that the tensile deformation of 6061-T6 aluminum alloy kept relatively stable despite the prior LCF was introduced, while the prior LCF significantly reduced the tensile strength of AISI 4140T steel. Mocko et al [12][13][14] found that the yield stress and ultimate stress of DP500 steel could be increased by stress-controlled prior LCF loading and he also proposed a constitutive model to predict the uniaxial tensile behavior after LCF loading [15,16]. Shankar et al [17][18][19] further pointed out that both LCF and C-F loading degraded the tensile strength of modified 9Cr-1Mo steel and the increase of temperature led to additional decline of tensile properties.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the effect of various prior creep-fatigue interaction damages on subsequent tensile and creep properties of 9%Cr steel

Zhang

Wang

Chen

et al. 2019

International Journal of Fatigue

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The degradation of tensile and creep properties is inevitable during high temperature service operation. Hence this work aims to evaluate the effect of prior creep-fatigue interaction damages on remnant tensile and creep properties of 9%Cr steel. Prior creep-fatigue tests interrupted at different lifetime fractions and different tensile hold times are performed at 650 °C. Afterwards, subsequent tensile and creep tests are conducted at the same temperature. Results reveal that high lifetime fraction of prior creep-fatigue loading leads to obvious reduction of remnant tensile strength and creep resistance. However, the increase in tensile hold time hardly alters the remnant properties. Microstructure and fracture surface observations indicate that the deterioration of remnant tensile strength is mainly ascribed to the decline of dislocation density occurred during prior creep-fatigue process, whereas the growth of martensite lath plays the dominated role in the reduction of remnant creep resistance. Moreover, surface crack also accelerates the decline of creep resistance at high lifetime fraction. To quantify the prior creep-fatigue interaction damage, a fatigue damage 2 indicator is proposed. Determined relationships between remnant tensile, creep properties and defined fatigue damage are obtained.

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“…9, respectively. Ratcheting is commonly attributed to local deformation around voids, non-metallic precipitations and other defects within the material [94][95][96].…”

Section: Strain-basedmentioning

confidence: 99%

A review of fatigue damage detection and measurement techniques

Bjørheim

Siriwardane

Pavlou

2022

International Journal of Fatigue

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A vast amount of research has been carried out towards the goal of quantifying changes related to the fatigue damaging process in materials throughout the fatigue life. However, no recommended practice has been developed for the experimental measurement of fatigue damage before a macroscopic crack has been initiated. Therefore, this paper reviews the existing fatigue damage detection and measurement techniques on the basis of both momentum within the research field and their being considered non-destructive. The techniques are separated into two categories, namely, fatigue crack monitoring and fatigue damage monitoring. The parameters of these techniques, which quantify the physical and mechanical changes of the materials during the fatigue life, were critically reviewed in regard to the mechanism behind the change, limitations, shortcomings, etc. The acoustic emission, hardness, ultrasonic, magnetic and potential drop methods are applicable for in-situ measurements while positron annihilation and X-ray diffraction are more suitable for laboratory assessments. Even though all the revived methods are applicable for metals, acoustic emissions, X-ray diffraction, ultrasonic, strainbased and thermometric methods are also suitable for composites. The reliability, advantages, weaknesses, case/ material dependency and applicability of each method are compared and tabulated for making a framework for choosing suitable technique for fatigue crack or damage detection of material or components.

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An influence of cyclic loading on the form of constitutive relationship for DP500 steel

Cited by 25 publications

References 14 publications

Remnant tensile and creep properties of aluminized AISI 321 austenite stainless steel under prior creep–fatigue interaction

Remnant tensile and creep properties of aluminized AISI 321 austenite stainless steel under prior creep–fatigue interaction

Evaluation of the effect of various prior creep-fatigue interaction damages on subsequent tensile and creep properties of 9%Cr steel

A review of fatigue damage detection and measurement techniques

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