Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 122, Issue 9, Pages -Publisher
SPRINGER
DOI: 10.1007/s00339-016-0385-0
Keywords
-
Funding
- National Natural Science Foundation of China [51305466, 51375502]
- National Key Basic Research Program [2013CB035801]
- State Key Laboratory of High Performance Complex Manufacturing [zzyjkt2014-01]
- Project of Innovation-driven Plan in Central South University [2016CX008]
- Natural Science Foundation for Distinguished Young Scholars of Hunan Province [2016JJ1017]
- Program of Chang Jiang Scholars of Ministry of Education [Q2015140]
- Key Laboratory of Efficient & Clean Energy Utilization, College of Hunan Province, China [2015NGQ001]
Ask authors/readers for more resources
In authors' previous work (Chen et al. in Appl Phys A. doi: 10.1007/s00339-016-0371-6, 2016), the nonlinear unloading behavior of a typical Ni-based superalloy was investigated by hot compressive experiments with intermediate unloading-reloading cycles. The characters of unloading curves were discussed in detail, and a new elasto-viscoplastic constitutive model was proposed to describe the nonlinear unloading behavior of the studied Ni-based superalloy. Still, the functional relationships between the deformation temperature, strain rate, pre-strain and the parameters of the proposed constitutive model need to be established. In this study, the effects of deformation temperature, strain rate and pre-strain on the parameters of the new constitutive model proposed in authors' previous work (Chen et al. 2016) are analyzed, and a unified elasto-viscoplastic constitutive model is proposed to predict the unloading behavior at arbitrary deformation temperature, strain rate and pre-strain.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available