Metadynamic Recrystallization Behavior of Cr-Ni-Mo Alloy Steel
In order to study the metadynamic recrystallization behavior of 34CrNi3MoV steel, a double-pass isothermal compression experiment and a single-pass thermal interval experiment were designed and conducted to obtain the stress–strain curves under different deformation conditions and to explore the act...
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MDPI AG
2023-04-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/4/696 |
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| author | Bing Zheng Zhipeng Zou Dong Xu Yiqun Wang Xuexi Wang Hongyang Zhao Dongying Ju |
| author_facet | Bing Zheng Zhipeng Zou Dong Xu Yiqun Wang Xuexi Wang Hongyang Zhao Dongying Ju |
| author_sort | Bing Zheng |
| collection | DOAJ |
| description | In order to study the metadynamic recrystallization behavior of 34CrNi3MoV steel, a double-pass isothermal compression experiment and a single-pass thermal interval experiment were designed and conducted to obtain the stress–strain curves under different deformation conditions and to explore the action law of deformation parameters during the compression process. The softening rate was calculated by the compensation method, and the grain size in the recrystallization region was measured. Based on the obtained data, the effects of deformation temperature (<i>T</i>), interval time (<i>t</i>), and strain rate (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mover accent="true"><mi>ε</mi><mo>˙</mo></mover></semantics></math></inline-formula>) on the softening rate and grain size of 34CrNi3MoV steel during metadynamic recrystallization were analyzed. The results show that increasing the deformation temperature, extending the interval time, and increasing the strain rate are all beneficial to the improvement of the metadynamic recrystallization softening rate and that fine and uniform new grains can be obtained under a high strain rate. However, in high-temperature conditions, mixed crystallization can easily occur, which is not conducive to grain refinement. Based on the true stress–strain data and experimental data on the grain size, a relevant model for metadynamic recrystallization of 34CrNi3MoV steel was established using mathematical analysis of regression equations. The average relative error AARE between the constructed dynamic model and the grain size model and the experimental results are 6.48% and 1.30%, respectively. This indicates that the model has high predictability. |
| first_indexed | 2024-03-11T04:44:49Z |
| format | Article |
| id | doaj.art-9379a71ba6e7467a88dabb7d9312bd9c |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T04:44:49Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-9379a71ba6e7467a88dabb7d9312bd9c2023-11-17T20:26:23ZengMDPI AGMetals2075-47012023-04-0113469610.3390/met13040696Metadynamic Recrystallization Behavior of Cr-Ni-Mo Alloy SteelBing Zheng0Zhipeng Zou1Dong Xu2Yiqun Wang3Xuexi Wang4Hongyang Zhao5Dongying Ju6School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, ChinaTechnology Innovation Center for High Quality Cold Heading Steel of Hebei Province, Hebei University of Engineering, Handan 056038, ChinaTechnology Center, Henan Zhongyuan Special Steel Equipment Manufacturing Co., Ltd., Jiyuan 459008, ChinaTechnology Center, Henan Zhongyuan Special Steel Equipment Manufacturing Co., Ltd., Jiyuan 459008, ChinaTechnology Center, Henan Zhongyuan Special Steel Equipment Manufacturing Co., Ltd., Jiyuan 459008, ChinaSchool of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, ChinaSchool of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, ChinaIn order to study the metadynamic recrystallization behavior of 34CrNi3MoV steel, a double-pass isothermal compression experiment and a single-pass thermal interval experiment were designed and conducted to obtain the stress–strain curves under different deformation conditions and to explore the action law of deformation parameters during the compression process. The softening rate was calculated by the compensation method, and the grain size in the recrystallization region was measured. Based on the obtained data, the effects of deformation temperature (<i>T</i>), interval time (<i>t</i>), and strain rate (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mover accent="true"><mi>ε</mi><mo>˙</mo></mover></semantics></math></inline-formula>) on the softening rate and grain size of 34CrNi3MoV steel during metadynamic recrystallization were analyzed. The results show that increasing the deformation temperature, extending the interval time, and increasing the strain rate are all beneficial to the improvement of the metadynamic recrystallization softening rate and that fine and uniform new grains can be obtained under a high strain rate. However, in high-temperature conditions, mixed crystallization can easily occur, which is not conducive to grain refinement. Based on the true stress–strain data and experimental data on the grain size, a relevant model for metadynamic recrystallization of 34CrNi3MoV steel was established using mathematical analysis of regression equations. The average relative error AARE between the constructed dynamic model and the grain size model and the experimental results are 6.48% and 1.30%, respectively. This indicates that the model has high predictability.https://www.mdpi.com/2075-4701/13/4/696Cr-Ni-Mo steelmetadynamic recrystallizationsoftening ratekinetics modelsgrain size |
| spellingShingle | Bing Zheng Zhipeng Zou Dong Xu Yiqun Wang Xuexi Wang Hongyang Zhao Dongying Ju Metadynamic Recrystallization Behavior of Cr-Ni-Mo Alloy Steel Metals Cr-Ni-Mo steel metadynamic recrystallization softening rate kinetics models grain size |
| title | Metadynamic Recrystallization Behavior of Cr-Ni-Mo Alloy Steel |
| title_full | Metadynamic Recrystallization Behavior of Cr-Ni-Mo Alloy Steel |
| title_fullStr | Metadynamic Recrystallization Behavior of Cr-Ni-Mo Alloy Steel |
| title_full_unstemmed | Metadynamic Recrystallization Behavior of Cr-Ni-Mo Alloy Steel |
| title_short | Metadynamic Recrystallization Behavior of Cr-Ni-Mo Alloy Steel |
| title_sort | metadynamic recrystallization behavior of cr ni mo alloy steel |
| topic | Cr-Ni-Mo steel metadynamic recrystallization softening rate kinetics models grain size |
| url | https://www.mdpi.com/2075-4701/13/4/696 |
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