Physically-based constitutive model and dynamic recrystallization behavior of AISI 4330V mod. Alloy steel under hot working conditions
This study was designed to propose a method for more accurately predicting high-temperature flow stress curves that include the dynamic recrystallization (DRX) behavior of ingot-forged AISI 4330V mod. alloy steel. Experimental flow stress curves were obtained through hot compression tests conducted...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425011925 |
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| author | Jungmin Lee Sungryul Kim Byoungkoo Kim Donghwan Kim |
| author_facet | Jungmin Lee Sungryul Kim Byoungkoo Kim Donghwan Kim |
| author_sort | Jungmin Lee |
| collection | DOAJ |
| description | This study was designed to propose a method for more accurately predicting high-temperature flow stress curves that include the dynamic recrystallization (DRX) behavior of ingot-forged AISI 4330V mod. alloy steel. Experimental flow stress curves were obtained through hot compression tests conducted under various temperatures and strain rates. The high-temperature constitutive model was established using the physically-based Estrin–Mecking (EM) model in combination with the Avrami equation. To enhance prediction accuracy, key variables such as characteristic stresses, strains, and material constants used in the model were expressed not only as functions of the Zener–Hollomon parameter (Z), but also as functions of forming temperature and strain rate. Finally, macro- and microstructural analyses were conducted to evaluate internal defects, material flow characteristics, and recrystallized microstructures of the compressed specimens. The results showed that the proposed constitutive model could predict the flow stress behavior with high accuracy, yielding a correlation coefficient (R) of 0.9981 and an average absolute relative error (AARE) of 1.66 %. |
| format | Article |
| id | doaj-art-44df976b188b480d95f75e1532ba9dae |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-44df976b188b480d95f75e1532ba9dae2025-08-20T02:30:59ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01368146815910.1016/j.jmrt.2025.05.038Physically-based constitutive model and dynamic recrystallization behavior of AISI 4330V mod. Alloy steel under hot working conditionsJungmin Lee0Sungryul Kim1Byoungkoo Kim2Donghwan Kim3Energy System Group, Korea Institute of Industrial Technology, Busan, 46938, Republic of Korea; Corresponding author.Energy System Group, Korea Institute of Industrial Technology, Busan, 46938, Republic of KoreaEnergy System Group, Korea Institute of Industrial Technology, Busan, 46938, Republic of KoreaDept. of Aviation Maintenance & Mechanical Engineering, Changshin University, Changwon, 51352, Republic of KoreaThis study was designed to propose a method for more accurately predicting high-temperature flow stress curves that include the dynamic recrystallization (DRX) behavior of ingot-forged AISI 4330V mod. alloy steel. Experimental flow stress curves were obtained through hot compression tests conducted under various temperatures and strain rates. The high-temperature constitutive model was established using the physically-based Estrin–Mecking (EM) model in combination with the Avrami equation. To enhance prediction accuracy, key variables such as characteristic stresses, strains, and material constants used in the model were expressed not only as functions of the Zener–Hollomon parameter (Z), but also as functions of forming temperature and strain rate. Finally, macro- and microstructural analyses were conducted to evaluate internal defects, material flow characteristics, and recrystallized microstructures of the compressed specimens. The results showed that the proposed constitutive model could predict the flow stress behavior with high accuracy, yielding a correlation coefficient (R) of 0.9981 and an average absolute relative error (AARE) of 1.66 %.http://www.sciencedirect.com/science/article/pii/S2238785425011925AISI 4330V mod. alloy steelDynamic recrystallization behaviorHigh-temperature constitutive modelFlow stress curve |
| spellingShingle | Jungmin Lee Sungryul Kim Byoungkoo Kim Donghwan Kim Physically-based constitutive model and dynamic recrystallization behavior of AISI 4330V mod. Alloy steel under hot working conditions Journal of Materials Research and Technology AISI 4330V mod. alloy steel Dynamic recrystallization behavior High-temperature constitutive model Flow stress curve |
| title | Physically-based constitutive model and dynamic recrystallization behavior of AISI 4330V mod. Alloy steel under hot working conditions |
| title_full | Physically-based constitutive model and dynamic recrystallization behavior of AISI 4330V mod. Alloy steel under hot working conditions |
| title_fullStr | Physically-based constitutive model and dynamic recrystallization behavior of AISI 4330V mod. Alloy steel under hot working conditions |
| title_full_unstemmed | Physically-based constitutive model and dynamic recrystallization behavior of AISI 4330V mod. Alloy steel under hot working conditions |
| title_short | Physically-based constitutive model and dynamic recrystallization behavior of AISI 4330V mod. Alloy steel under hot working conditions |
| title_sort | physically based constitutive model and dynamic recrystallization behavior of aisi 4330v mod alloy steel under hot working conditions |
| topic | AISI 4330V mod. alloy steel Dynamic recrystallization behavior High-temperature constitutive model Flow stress curve |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425011925 |
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