Comparison of Prediction Models for the Hot Deformation Behavior of Cast Mg–Zn–Y Alloy

Neethu, N.; Hassan, Nahil Ahmed; Kumar, Ravi Ranjan; Chakravarthy, P.; Srinivasan, A.; Rijas, A. Muhammed

doi:10.1007/s12666-020-01944-6

Cited by 6 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 6 summarizes the prediction accuracy of the flow stress by traditional Arrhenius constitutive equation, Johnson-Cook equation, and some other kinds of constitutive equations. [51][52][53][54][55][56][57][58][59] According to the statistical parameters R and AARE listed in Table 4, it is concluded that the physical constitutive equations established in this paper have a relatively higher R value and a lower AARE value, which can predict the flow stress of the experimental steels with high precision.…”

Section: Comparative Analysis Of the Physical Constitutive Equationsmentioning

confidence: 99%

A Comparative Study on Hot Deformation Behaviors of Niobium Microalloyed Low‐Carbon and Medium‐Carbon Steels by Physical Constitutive Analysis

Wei

Deng

Zhou

et al. 2022

steel research int.

View full text Add to dashboard Cite

Hot compression tests are performed on low‐carbon (LC) and medium‐carbon (MC) niobium microalloyed steels at temperatures of 900–1100 °C and strain rates of 0.01–10 s−1. The constitutive equations are studied by a physical method based on creep theory considering the relationship between the self‐diffusion coefficient, Young's modulus, and temperature. It is found that carbon addition in niobium microalloyed steels shows an obvious softening effect. The physical constitutive analysis indicates that the deformation mechanism of MC steel is the slide and climb of dislocation; however, other deformation mechanisms may occur in LC steel. The accuracy of the physical constitutive equations is quantified by employing correlation coefficient (R) and average absolute relative error (AARE). For LC steel, the R value of the equation containing exponent 5 and exponent n is 0.98 and 0.99; the AARE value is 9.06% and 4.15%, respectively, and the accuracy of the latter equation is significantly higher. For MC steel, the R value of the two equations is the same and equal to 0.99, the AARE value is 5.96% and 4.91%, respectively, the accuracy of the equations is quite close to each other. The accuracy analysis is also in reasonable agreement with the speculation of the deformation mechanism.

show abstract

Section: Comparative Analysis Of the Physical Constitutive Equationsmentioning

confidence: 99%

A Comparative Study on Hot Deformation Behaviors of Niobium Microalloyed Low‐Carbon and Medium‐Carbon Steels by Physical Constitutive Analysis

Wei

Deng

Zhou

et al. 2022

steel research int.

View full text Add to dashboard Cite

show abstract

An improved extreme learning machine model for predicting the mechanical property of AZ80 magnesium alloy

Gu,

Jiang,

Guo

et al. 2024

Appl. Phys. A

View full text Add to dashboard Cite

Thermal deformation behavior of as-cast Mg-2Nd alloy: constitutive equation, microstructural analysis, and rheological stress prediction based on support vector regression

Liu,

Yang,

Liu

et al. 2024

J Mater Sci

View full text Add to dashboard Cite

Comparison of Prediction Models for the Hot Deformation Behavior of Cast Mg–Zn–Y Alloy

Cited by 6 publications

References 20 publications

A Comparative Study on Hot Deformation Behaviors of Niobium Microalloyed Low‐Carbon and Medium‐Carbon Steels by Physical Constitutive Analysis

A Comparative Study on Hot Deformation Behaviors of Niobium Microalloyed Low‐Carbon and Medium‐Carbon Steels by Physical Constitutive Analysis

An improved extreme learning machine model for predicting the mechanical property of AZ80 magnesium alloy

Thermal deformation behavior of as-cast Mg-2Nd alloy: constitutive equation, microstructural analysis, and rheological stress prediction based on support vector regression

Contact Info

Product

Resources

About