A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Constitutive modeling for flow behavior of GCr15 steel under hot compression experiments
Highlights ► Studied the thermal compressive deformation behavior of GCr15 steel. ► Observed the optical micrograph of GCr15 steel after hot compression. ► Formulated the thermoplastic constitutive equation of GCr15 steel. ► Confirmed the accuracy and reliability of the developed constitutive equation.
Abstract The thermal compressive deformation behavior of GCr15 (AISI-52100), one of the most commonly used bearing steels, was studied on the Gleeble-3500 thermo-simulation system at temperature range of 950–1150°C and strain rate range of 0.1–10s−1. According to the experimental results, the stress level decreases with increasing deformation temperature and decreasing strain rate. The peak stresses on the true stress–strain curves suggest that the dynamic softening of GCr15 steel occurs during hot compression tests. To formulate the thermoplastic constitutive equation of GCr15 steel, Arrhenius equation and the Zener–Hollomon parameter in an exponent-type equation were utilized in this paper. In addition, a modified Zener–Hollomon parameter considering the compensation of strain rate during hot compression was employed to improve the prediction accuracy of the developed constitutive equation. Analysis results indicate that the flow stress values predicted by the proposed constitutive model agree well with the experimental values, which confirms the accuracy and reliability of the developed constitutive equation of GCr15 steel.
Constitutive modeling for flow behavior of GCr15 steel under hot compression experiments
Highlights ► Studied the thermal compressive deformation behavior of GCr15 steel. ► Observed the optical micrograph of GCr15 steel after hot compression. ► Formulated the thermoplastic constitutive equation of GCr15 steel. ► Confirmed the accuracy and reliability of the developed constitutive equation.
Abstract The thermal compressive deformation behavior of GCr15 (AISI-52100), one of the most commonly used bearing steels, was studied on the Gleeble-3500 thermo-simulation system at temperature range of 950–1150°C and strain rate range of 0.1–10s−1. According to the experimental results, the stress level decreases with increasing deformation temperature and decreasing strain rate. The peak stresses on the true stress–strain curves suggest that the dynamic softening of GCr15 steel occurs during hot compression tests. To formulate the thermoplastic constitutive equation of GCr15 steel, Arrhenius equation and the Zener–Hollomon parameter in an exponent-type equation were utilized in this paper. In addition, a modified Zener–Hollomon parameter considering the compensation of strain rate during hot compression was employed to improve the prediction accuracy of the developed constitutive equation. Analysis results indicate that the flow stress values predicted by the proposed constitutive model agree well with the experimental values, which confirms the accuracy and reliability of the developed constitutive equation of GCr15 steel.
Constitutive modeling for flow behavior of GCr15 steel under hot compression experiments
Yin, Fei (author) / Hua, Lin (author) / Mao, Huajie (author) / Han, Xinghui (author)
2012-01-01
9 pages
Article (Journal)
Electronic Resource
English
Constitutive modeling for flow behavior of GCr15 steel under hot compression experiments
| British Library Online Contents | 2012
Wear Behavior of Laser-Hardened GCr15 Steel under Lubricated Sliding Conditions
| British Library Online Contents | 2009
Impact - Induced Damage Behavior of GCr15 Steel under Different Lubrication States
| British Library Online Contents | 2014
Research on the dynamic recrystallization behavior of GCr15 steel
| British Library Online Contents | 2009