A Flow Stress Model of 300M Steel for Isothermal Tension
To investigate the effect of hot working parameters on the flow behavior of 300M steel under tension, hot uniaxial tensile tests were implemented under different temperatures (950 °C, 1000 °C, 1050 °C, 1100 °C, 1150 °C) and strain rates (0.01 s<sup>−1</sup>, 0.1 s<sup>−1</sup>...
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MDPI AG
2021-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/2/252 |
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| author | Rongchuang Chen Shiyang Zhang Xianlong Liu Fei Feng |
| author_facet | Rongchuang Chen Shiyang Zhang Xianlong Liu Fei Feng |
| author_sort | Rongchuang Chen |
| collection | DOAJ |
| description | To investigate the effect of hot working parameters on the flow behavior of 300M steel under tension, hot uniaxial tensile tests were implemented under different temperatures (950 °C, 1000 °C, 1050 °C, 1100 °C, 1150 °C) and strain rates (0.01 s<sup>−1</sup>, 0.1 s<sup>−1</sup>, 1 s<sup>−1</sup>, 10 s<sup>−1</sup>). Compared with uniaxial compression, the tensile flow stress was 29.1% higher because dynamic recrystallization softening was less sufficient in the tensile stress state. The ultimate elongation of 300M steel increased with the decrease of temperature and the increase of strain rate. To eliminate the influence of sample necking on stress-strain relationship, both the stress and the strain were calibrated using the cross-sectional area of the neck zone. A constitutive model for tensile deformation was established based on the modified Arrhenius model, in which the model parameters (<i>n</i>, <i>α</i>, <i>Q</i>, ln(<i>A</i>)) were described as a function of strain. The average deviation was 6.81 MPa (6.23%), showing good accuracy of the constitutive model. |
| first_indexed | 2024-03-09T05:49:01Z |
| format | Article |
| id | doaj.art-454eb50f810544818700d2ed663aaab8 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T05:49:01Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-454eb50f810544818700d2ed663aaab82023-12-03T12:18:34ZengMDPI AGMaterials1996-19442021-01-0114225210.3390/ma14020252A Flow Stress Model of 300M Steel for Isothermal TensionRongchuang Chen0Shiyang Zhang1Xianlong Liu2Fei Feng3School of Materials Science & Engineering, Hubei University of Automotive Technology, Shiyan 442002, ChinaSchool of Materials Science & Engineering, Hubei University of Automotive Technology, Shiyan 442002, ChinaSchool of Materials Science & Engineering, Hubei University of Automotive Technology, Shiyan 442002, ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, ChinaTo investigate the effect of hot working parameters on the flow behavior of 300M steel under tension, hot uniaxial tensile tests were implemented under different temperatures (950 °C, 1000 °C, 1050 °C, 1100 °C, 1150 °C) and strain rates (0.01 s<sup>−1</sup>, 0.1 s<sup>−1</sup>, 1 s<sup>−1</sup>, 10 s<sup>−1</sup>). Compared with uniaxial compression, the tensile flow stress was 29.1% higher because dynamic recrystallization softening was less sufficient in the tensile stress state. The ultimate elongation of 300M steel increased with the decrease of temperature and the increase of strain rate. To eliminate the influence of sample necking on stress-strain relationship, both the stress and the strain were calibrated using the cross-sectional area of the neck zone. A constitutive model for tensile deformation was established based on the modified Arrhenius model, in which the model parameters (<i>n</i>, <i>α</i>, <i>Q</i>, ln(<i>A</i>)) were described as a function of strain. The average deviation was 6.81 MPa (6.23%), showing good accuracy of the constitutive model.https://www.mdpi.com/1996-1944/14/2/252flow stress modeltensile deformationconstitutive modelstress correction |
| spellingShingle | Rongchuang Chen Shiyang Zhang Xianlong Liu Fei Feng A Flow Stress Model of 300M Steel for Isothermal Tension Materials flow stress model tensile deformation constitutive model stress correction |
| title | A Flow Stress Model of 300M Steel for Isothermal Tension |
| title_full | A Flow Stress Model of 300M Steel for Isothermal Tension |
| title_fullStr | A Flow Stress Model of 300M Steel for Isothermal Tension |
| title_full_unstemmed | A Flow Stress Model of 300M Steel for Isothermal Tension |
| title_short | A Flow Stress Model of 300M Steel for Isothermal Tension |
| title_sort | flow stress model of 300m steel for isothermal tension |
| topic | flow stress model tensile deformation constitutive model stress correction |
| url | https://www.mdpi.com/1996-1944/14/2/252 |
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