Modeling the temperature dependence of fatigue strength of metallic materials

He, Yan; Li, Weiguo; Yang, Mengqing; Zhao, Zhongyong; Zhang, Xu-Yao; Dong, Pan; Zheng, Shifeng; Ma, Yanli

doi:10.1016/j.ijfatigue.2022.106896

Cited by 10 publications

(5 citation statements)

References 59 publications

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“…Based on the proposed force-heat equivalence energy density principle, we have developed a series of novel theoretical characterization models of materials; for example, temperature-dependent models of yield strength, ultimate tensile strength, and fatigue strength for metallic materials. [28][29][30] Furthermore, the proposed force-heat equivalence energy density principle has been successfully extended to the theoretical characterization of the physical properties of materials, such as the temperature-dependent anti-phase boundary energy, vacancy formation energy, surface energy, grain boundary slip energy and dislocation climbing energy of the metallic materials, [31][32][33][34][35] and the temperature-dependent band gap, refractive index and Raman frequency of semiconductor materials. [36][37][38] These models offer a quantitative description of the properties affected by temperature due to the change in heat energy.…”

Section: The Justification Of the Force-heat Equivalence Energy Densi...mentioning

confidence: 99%

Theoretical characterization of the temperature-dependent saturation magnetization of magnetic metallic materials

Wu 吴,

Dong 董,

He 贺

et al. 2024

Chinese Phys. B

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In this study, based on the Force-Heat Equivalence Energy Density Principle, a theoretical model for magnetic metallic materials is developed which characterizes the temperature-dependent magnetic anisotropy energy by considering the equivalent relationship between magnetic anisotropy energy and heat energy, and then the relationship between the magnetic anisotropy constant and saturation magnetization is considered. Finally, we formulate a temperature-dependent model for saturation magnetization, revealing the inherent relationship between temperature and saturation magnetization. Our model predicts the saturation magnetization for nine different magnetic metallic materials at different temperatures, exhibiting satisfactory agreement with experimental data. Additionally, the experimental data used as reference points are at or near room temperature. Compared to other phenomenological theoretical models, this model is considerably more accessible than the data required at 0 K. The index included in our model is set to a constant value which is equal to 10/3 for materials other than Fe, Co, and Ni. For transition metals (Fe, Co, and Ni in this paper), the index is 6 in the range of 0 K to 0.65T cr (critical temperature), and 3 in the range of 0.65T cr to T cr, unlike other models where the adjustable parameters vary according to each material. In addition, our model provides a new way for designing and evaluating magnetic metallic materials with superior magnetic properties over a wide range of temperatures.

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Section: The Justification Of the Force-heat Equivalence Energy Densi...mentioning

confidence: 99%

Theoretical characterization of the temperature-dependent saturation magnetization of magnetic metallic materials

Wu 吴,

Dong 董,

He 贺

et al. 2024

Chinese Phys. B

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“…When this structure is broken, work or heat transfer is required to break the bonding between the atoms. In the previous part of this paper, we studied the damage to the material structure caused by the work performed at different locations inside the material 8,18 . According to the theory of damage fracture mechanics, in addition to the damage caused by the work done by shear stress, there is also the influence of heat energy on the chemical bond.…”

Section: Heat Energy Fatigue Damage Modelmentioning

confidence: 99%

“…In the previous part of this paper, we studied the damage to the material structure caused by the work performed at different locations inside the material. 8,18 According to the theory of damage fracture mechanics, in addition to the damage caused by the work done by shear stress, there is also the influence of heat energy on the chemical bond. As a consequence, we shall assume the existence of a maximum constant value for the maximum storage of energy in unit volume, W TOTAL is the total failure energy.…”

Section: Effects Of Heat Energy On Fatigue Lifementioning

confidence: 99%

“…The temperature in Equation 16refers to the material temperature of the part reaching thermal equilibrium (the friction temperature rise and heat loss of the part reaching equilibrium, and the temperature of the part itself no longer rising). Expressions of W T T ð Þ and W d T ð Þ are shown in Equations ( 17) and (18).…”

Section: Effects Of Heat Energy On Fatigue Lifementioning

confidence: 99%

“…Lin et al 17 applied crystal plasticity to simulate the cyclic constitutive behavior of polycrystalline nickel-based superalloy at high temperature, and the fatigue crack nucleation location was in the soft grain. He et al [18][19][20] explored the dependence of fatigue strength of metal materials on temperature, and proposed the maximum energy density of strain energy and equivalent heat energy related to fatigue failure of materials at different temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the heat energy and multi‐level load on subsurface fatigue damage evolution via multi‐scale method

Hao

Qian

et al. 2023

Fatigue Fract Eng Mat Struct

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The relationship between heat energy and initial fatigue life of different metals under multi-level loading stress and elevated temperature is introduced. The fatigue damage evolution model was established from the microscopic and mesoscopic perspectives to explore the fatigue damage and the crack initiation location at elevated temperature. Based on the method of continuous damage mechanics, the influence of multi-level loads on fatigue cracking life and heat energy on strain energy of distribution were investigated. The mathematical model is verified by the experimental data. The model has important engineering significance for predicting the service life of parts at elevated temperature. K E Y W O R D S elevated temperature, fatigue crack, heat energy, multi-level load, multi-scale Highlights 1. Fatigue damage model is established by the coupling of microcosmic and microcosmic.2. The relationship between heat energy and fatigue life is discussed.3. The influence of heat energy on sub-surface damage of parts was investigated.4. Considering the influence of heat energy to improve the accuracy of fatigue model.

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Temperature-Dependent Yield Strength of Nanoprecipitate-Strengthened Face-Centered Cubic High Entropy Alloys: Prediction and Analysis

et al. 2022

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Modeling the temperature dependence of fatigue strength of metallic materials

Cited by 10 publications

References 59 publications

Theoretical characterization of the temperature-dependent saturation magnetization of magnetic metallic materials

Theoretical characterization of the temperature-dependent saturation magnetization of magnetic metallic materials

Investigation of the heat energy and multi‐level load on subsurface fatigue damage evolution via multi‐scale method

Temperature-Dependent Yield Strength of Nanoprecipitate-Strengthened Face-Centered Cubic High Entropy Alloys: Prediction and Analysis

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