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- Title
MODIFIED ZERILLI-ARMSTRONG MODEL FOR 21-4N HEATRESISTANT STEEL.
- Authors
HUANG, X. M.; LONG, H. Y.; LI, Y. M.; DUAN, H. L.
- Abstract
The Gleeble - 1500D thermal simulator was used to conduct the isothermal compression test of 21 - 4N heat-resistant steel under the T range of 1 273 - 1 453 K and e? of 0,01 - 10 s-1. Using the obtained stress - strain data, various parameters of the modified Zerilli-Armstrong (m - Z - A) model were calculated. The constitutive equations of 21 - 4N heat-resistant steel based on the m - Z - A were established. The m - Z - A model can well describe the rheological behavior of 21 - 4N heat-resistant steel. The simulation process can be completed successfully, indicating that the established models can be used for the simulation study of thermal deformation of 21 - 4N heat-resistant steel and are correct. The results can provide some important basic data for the simulation of 21 - 4N heat resistant steel on plastic deformation process.
- Subjects
HEAT resistant steel; HEAT resistant alloys; ISOTHERMAL compression; STEEL; MATERIAL plasticity
- Publication
Metalurgija, 2020, Vol 59, Issue 3, p305
- ISSN
0543-5846
- Publication type
Article