| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Hot Deformation Behavior and Constitutive Modeling of a Novel Ni-based Superalloy |
| Author(s) |
Hao Yu, Qi Liu, Hao Yang, Baoyun Zhang, Bingchao Xie, Yongquan Ning |
| On-Site Speaker (Planned) |
Hao Yu |
| Abstract Scope |
Ni-based superalloys are widely used to manufacture the key components in gas turbine engine,since their superior mechanical properties at elevated temperature.In present work, hot deformation behavior of a novel Ni-based superalloy was investigated by compression test at temperatures of 1020-1140℃ and strain rates of 0.001-10s-1.At low temperature and high strain rates, the flow stress rapidly increased to a peak value due to work hardening.However, at high temperature and low strain rates, the flow curves exhibited typical dynamic softening stage. The hot deformation activation energy of the studied superalloy is determined to be 735.5KJ/mol, and a strain compensated Arrhenius type constitutive equation is obtained.Comparison of the predicted and experimental values, the developed constitutive equation can accurately describe the deformation mechanism and the flow behavior.Meanwhile, the influence of hot processing parameters on microstructure has been deeply explored, which can optimize the process parameters for manufacturing key components in gas turbine engine. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |