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Study on a Constitutive Model for Predicting Hot Deformation Behavior of 34CrNi3MoA Steel for Reducer of Mining Equipment.

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Title: Study on a Constitutive Model for Predicting Hot Deformation Behavior of 34CrNi3MoA Steel for Reducer of Mining Equipment.
Authors: Zhang, X. F.1,2 mkyzxf@qq.com, Huang, C. F.3 18831287238@163.com
Source: Metalurgija. 2026, Vol. 65 Issue 2, p152-160. 9p.
Subjects: Arrhenius equation, Steel, Deformations (Mechanics), Rheology, Material plasticity, Computer simulation
Abstract: As a high-strength medium-carbon quenched and tempered steel, 34CrNi3MoA is used in mining equipment reducer gears primarily due to its excellent mechanical properties, wear resistance, and impact resistance, meeting high-load demands under complex conditions. To develop an accurate constitutive model for predicting its high-temperature flow behavior, thermal compression tests were conducted on a Gleeble-3800 simulator at (1000-1200) °C and (0.01-10) s-1 strain rates. A strain-compensated Arrhenius model was established using test data, with its predictability analyzed via correlation coefficient (R) and average absolute relative error (ARRE). Results show the model accurately predicts flow behavior under these conditions, with R = 0.9933 and ARRE = 5.244 %. These findings provide a reference for initial design and numerical prediction of 34CrNi3MoA's high-temperature flow behavior, and are significant for numerical simulation and parameter optimization in its hot forming processes. [ABSTRACT FROM AUTHOR]
Copyright of Metalurgija is the property of Croatian Metallurgical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Study on a Constitutive Model for Predicting Hot Deformation Behavior of 34CrNi3MoA Steel for Reducer of Mining Equipment.
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  Data: <searchLink fieldCode="JN" term="%22Metalurgija%22">Metalurgija</searchLink>. 2026, Vol. 65 Issue 2, p152-160. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Arrhenius+equation%22">Arrhenius equation</searchLink><br /><searchLink fieldCode="DE" term="%22Steel%22">Steel</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Rheology%22">Rheology</searchLink><br /><searchLink fieldCode="DE" term="%22Material+plasticity%22">Material plasticity</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: As a high-strength medium-carbon quenched and tempered steel, 34CrNi3MoA is used in mining equipment reducer gears primarily due to its excellent mechanical properties, wear resistance, and impact resistance, meeting high-load demands under complex conditions. To develop an accurate constitutive model for predicting its high-temperature flow behavior, thermal compression tests were conducted on a Gleeble-3800 simulator at (1000-1200) °C and (0.01-10) s-1 strain rates. A strain-compensated Arrhenius model was established using test data, with its predictability analyzed via correlation coefficient (R) and average absolute relative error (ARRE). Results show the model accurately predicts flow behavior under these conditions, with R = 0.9933 and ARRE = 5.244 %. These findings provide a reference for initial design and numerical prediction of 34CrNi3MoA's high-temperature flow behavior, and are significant for numerical simulation and parameter optimization in its hot forming processes. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Metalurgija is the property of Croatian Metallurgical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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        Type: general
      – SubjectFull: Steel
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      – SubjectFull: Deformations (Mechanics)
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      – SubjectFull: Rheology
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              Text: 2026
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