Features of softening processes of aluminum, copper, and their alloys under hot deformation

Гвоздев, А. Е.; Колмаков, А. Г.; Provotorov, D. A.; Bogolyubova, D. N.; Sergeev, N. N.; Тихонова, И. В.

doi:10.1134/s2075113315010086

Cited by 13 publications

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“…In Fig 4, the fitting degree (R 2 ) is all greater than 0.99, indicating that the fitting results are more accurate. The Arrhenius constitutive equation for strain compensation can be expressed as equation (10), and the prediction results of the model are shown in Figure 5.…”

Section: Arrhenius Constitutive Model With Strain Compensationmentioning

confidence: 99%

“…Sun Honglei et al [8] established an Arrhenius constitutive model of strain compensation for HPb59-1 copper alloy materials, and evaluated the prediction accuracy of the constitutive model by correlation coefficient and mean absolute error; The modified Johnson-Cook constitutive model established by Yang et al [9] can accurately predict the stress of BFe10-1.6-1 cupronickel alloy under most deformation conditions, and it is found that the main high-temperature softening mechanism of BFe10-1.6-1 cupronickel alloy is dynamic recovery. Ding Xiaofeng et al [10] used the AvTami equation to establish a dynamic recrystallization kinetic model of magnesium alloy, and verified the correctness of the model by comparing the experimental results of microstructure with the critical strain value of dynamic recrystallization predicted by the model, which can be used for the prediction of dynamic recrystallization in hot working of AZ31 magnesium alloy.…”

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confidence: 99%

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The hot deformation of c83600 tin bronze alloy based on Arrhenius constitutive models

Zeng,

Huang,

Liu

et al. 2024

Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023)

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For a further study on the hot deformation behaviors of C83600 Tin Bronze alloy under the elevated temperatures, the real stress-strain curve of C83600 Tin Bronze alloy in isothermal compression test were obtained under the conditions of deformation temperature of 873, 973K, 1073K, strain rate of 0.001, 0.01, 0.1, 1s -1 and deformation of 50%., the temperature range of 873-1073 K and strain rate range of 0.001-1s -1 by the Gleeble-3500 thermo mechanical simulator, constitutive equations were established to describe the high-temperature flow stress of this alloy based on modified Arrhenius-Type constitutive model,respectively. Meanwhile, the predictability of the obtained models was assessed by correlation coefficients (R) and root mean square error (RMSE), where the values R were computed to be 0.99326, and the values of RMSE were calculated to be 5.1898 for modified Arrhenius-Type constitutive model, respe.ctively. Moreover,the comparison of the experimental and predicted flow stresses in the strain range of 0.05−0.6 further indicated that the obtained modified Arrhenius-Type model possessed better predictability on hot deformation behavior of C83600 Tin Bronze alloy.

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Section: Arrhenius Constitutive Model With Strain Compensationmentioning

confidence: 99%

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confidence: 99%