Prediction of FV520B Steel Flow Stresses at High Temperature and Strain Rates
| العنوان: | Prediction of FV520B Steel Flow Stresses at High Temperature and Strain Rates |
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| المؤلفون: | Shengdun Zhao, Xiaolan Han, Shuqin Fan, Zhang Chenyang, Fan Xu |
| المصدر: | High Temperature Materials and Processes, Vol 34, Iss 6, Pp 529-538 (2015) |
| بيانات النشر: | Walter de Gruyter GmbH, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Technology, compensation of strain and strain rate, Materials science, Strain (chemistry), fv520b steel, Chemical technology, Constitutive equation, flow stress prediction, Chemicals: Manufacture, use, etc, TP200-248, TP1-1185, Condensed Matter Physics, Flow (mathematics), Mechanics of Materials, General Materials Science, Physical and Theoretical Chemistry, Composite material, constitutive equation |
| الوصف: | In order to develop reliable constitutive equations for the simulation, the hot deformation behavior of FV520B steel was investigated through isothermal compression tests in a wide range of temperatures from 900 °C to 1100 °C at an interval of 50 °C and strain rate from 0.01 to 10 s−1 on Gleeble-1500D simulator. The effects of temperature and strain rate on deformation behavior were represented by Zener-Holloman parameter in an exponent-type equation of Arrhenius constitutive. The influence of strain was incorporated in the constitutive analysis by material constants expressed as a polynomial function of strain. The constitutive equation (considering the compensation of strain) could precisely predict the flow stress only at strain rate 0.01 s−1 except at the temperatures of 900 °C and 1000 °C, whereas the flow stress predicted by a modified equation (incorporating both the strain and strain rate) demonstrated a well agreement with the experimental data throughout the entire range of temperatures and strain rates. Correlation coefficient (R) of 0.988 and average absolute relative error (AARE) of 5.7% verified the validity of developed equation from statistical analysis, which further confirmed that the modified constitutive equation could accurately predict the flow stress of FV520B steel. |
| تدمد: | 2191-0324 0334-6455 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7704049fcdcf285c65383c9a4cd98f9c https://doi.org/10.1515/htmp-2014-0019 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....7704049fcdcf285c65383c9a4cd98f9c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21910324 03346455 |
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