Study on environmental effect on fatigue and creep-fatigue strength of 316FR stainless steel in sodium at elevated temperature

Date, Shingo; Ishikawa, Hiroshi; Otani, Tomomi; Takahashi, Yoshihiro; Nakazawa, Takahiro

doi:10.1016/j.nucengdes.2006.09.008

Cited by 8 publications

(2 citation statements)

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“…Hence, the virtual elastic damage should be introduced and defined in addition to fatigue and creep damages. It can be seen from Equations (10) and (11) that the definitions of fatigue and creep damage are mainly based on the linear cumulative damage theory. Hence, the linear cumulative damage theory was also employed in defining the virtual elastic damage per cycle.…”

Section: Construction Of 3d Damage Interaction Diagrammentioning

confidence: 99%

“…Compressive strain hold induces a tensile mean stress, whereas a compressive mean stress is introduced by tensile strain hold. Date et al [11] investigated the environmental effect on the fatigue and creep-fatigue behavior of 316 fire-resistant steel, longer fatigue lives were obtained in sodium than in air, and the hold position also affected the fracture behavior. In addition to environment and hold position effects, the influences of dynamic strain aging [12], strain rate [13], strain amplitude [14], and microstructural changes due to long-term service [15,16] were also pronounced in many cases.…”

Section: Introductionmentioning

confidence: 99%

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A New 3D Creep-Fatigue-Elasticity Damage Interaction Diagram Based on the Total Tensile Strain Energy Density Model

Wang

Zhang

Wang

2020

Metals

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Fatigue damage, creep damage, and their interactions are the critical factors in degrading the integrity of most high-temperature engineering structures. A reliable creep-fatigue damage interaction diagram is a crucial issue for the design and assessment of high-temperature components used in power plants. In this paper, a new three-dimensional creep-fatigue-elasticity damage interaction diagram was constructed based on a developed life prediction model for both high-temperature fatigue and creep fatigue. The total tensile strain energy density concept is adopted as a damage parameter for life prediction by using the elastic strain energy density and mean stress concepts. The model was validated by a great deal of data such as P91 steel at 550 °C, Haynes 230 at 850 °C, Alloy 617 at 850 and 950 °C, and Inconel 625 at 815 °C. The estimation values have very high accuracy since nearly all the test data fell into the scatter band of 2.0.

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Section: Construction Of 3d Damage Interaction Diagrammentioning

confidence: 99%