Flow behaviors of 22MnB5 steel at a high temperature
| Autor: | Li Huaguan, Li Xuan, Zhang-Zhong Wang, Li Qi, Wei-Jie Fei, Hai-Rong Gu, Liu Yonggang |
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| Rok vydání: | 2019 |
| Předmět: |
Arrhenius equation
Polynomial (hyperelastic model) Materials science Polymers and Plastics Strain (chemistry) Constitutive equation Flow (psychology) Metals and Alloys Thermodynamics Strain rate Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials Stress (mechanics) symbols.namesake Rheology symbols |
| Zdroj: | Materials Research Express. 6:076527 |
| ISSN: | 2053-1591 |
| Popis: | Flow behaviors of 22MnB5 ultra-high strength steel (UHSS) at different temperatures and strain rates were investigated using uniaxial tension tests. The variables of the Arrhenius model, which involved n, Q, α, and lnA, was calculated using a fifth order polynomial fitting method. At a strain of 0.1, the values of n, Q, α, and lnA were respectively 8.24579, 177.7588 kJmol−1, 0.00618 MPa−1, and 25.77352 s−1. The results indicate that the change in rheological stress was inversely proportional to the change in temperature but was positively correlated with the change in strain rate. The new model reproduced the flow behaviors of this novel UHSS sheet well for a wide range of strain rates and temperature conditions. |
| Databáze: | OpenAIRE |
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