Microstructure-based constitutive modeling of flow stress behavior of Ti-6Al-2Zr-2Sn-3Mo-1.5Cr-2Nb alloy at thermo-mechanical processing conditions.
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| Title: | Microstructure-based constitutive modeling of flow stress behavior of Ti-6Al-2Zr-2Sn-3Mo-1.5Cr-2Nb alloy at thermo-mechanical processing conditions. |
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| Authors: | Pak, Hyon Song1 (AUTHOR), Sim, Kyong Ho1 (AUTHOR) sgh83818@star-co.net.kp, Ri, Bom Hae1 (AUTHOR), Jang, Gun Song1 (AUTHOR) |
| Source: | Applied Physics A: Materials Science & Processing. Jun2025, Vol. 131 Issue 6, p1-12. 12p. |
| Subjects: | Standard deviations, Isothermal compression, Dislocations in crystals, Strain hardening, Dislocation density |
| Abstract: | The response of a Ti-6Al-2Zr-2Sn-3Mo-1.5Cr-2Nb alloy to the flow stress behavior was satisfactorily represented by a microstructure-based constitutive model. True stress-strain curves obtained by isothermal uniaxial compression tests under various thermo-mechanical processing conditions (temperature– 890, 920, 950, 980, 1010 °C, strain rate– 0.001, 0.01, 0.1, 1 s− 1) were used for constitutive modeling. A new model was developed, mainly on the basis of the dislocation density theory and dynamic restoration mechanism. The Zener-Hollomon parameter was calculated through the development of Arrhenius type model on peak stresses. Also, a work hardening and dynamic recovery model and a dynamic recrystallization model were developed. The determination coefficient and the average absolute relative error of the developed constitutive model are 0.9955 and 2.95%. And the mean absolute error and root mean square error are also calculated and they are 1.8 MPa and 2.7 MPa. The comparison between measured and predicted flow stresses shows that the established constitutive model has the better accuracy than the constitutive models reported in literatures. In consequence of all, it was come to the conclusion that the developed microstructure-based constitutive model is wonderfully suitable to the numerical simulation of a Ti-6Al-2Zr-2Sn-3Mo-1.5Cr-2Nb alloy. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Physics A: Materials Science & Processing is the property of Springer Nature 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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| Header | DbId: egs DbLabel: Engineering Source An: 186016654 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Microstructure-based constitutive modeling of flow stress behavior of Ti-6Al-2Zr-2Sn-3Mo-1.5Cr-2Nb alloy at thermo-mechanical processing conditions. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Pak%2C+Hyon+Song%22">Pak, Hyon Song</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sim%2C+Kyong+Ho%22">Sim, Kyong Ho</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sgh83818@star-co.net.kp</i><br /><searchLink fieldCode="AR" term="%22Ri%2C+Bom+Hae%22">Ri, Bom Hae</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jang%2C+Gun+Song%22">Jang, Gun Song</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Physics+A%3A+Materials+Science+%26+Processing%22">Applied Physics A: Materials Science & Processing</searchLink>. Jun2025, Vol. 131 Issue 6, p1-12. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Standard+deviations%22">Standard deviations</searchLink><br /><searchLink fieldCode="DE" term="%22Isothermal+compression%22">Isothermal compression</searchLink><br /><searchLink fieldCode="DE" term="%22Dislocations+in+crystals%22">Dislocations in crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Strain+hardening%22">Strain hardening</searchLink><br /><searchLink fieldCode="DE" term="%22Dislocation+density%22">Dislocation density</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The response of a Ti-6Al-2Zr-2Sn-3Mo-1.5Cr-2Nb alloy to the flow stress behavior was satisfactorily represented by a microstructure-based constitutive model. True stress-strain curves obtained by isothermal uniaxial compression tests under various thermo-mechanical processing conditions (temperature– 890, 920, 950, 980, 1010 °C, strain rate– 0.001, 0.01, 0.1, 1 s− 1) were used for constitutive modeling. A new model was developed, mainly on the basis of the dislocation density theory and dynamic restoration mechanism. The Zener-Hollomon parameter was calculated through the development of Arrhenius type model on peak stresses. Also, a work hardening and dynamic recovery model and a dynamic recrystallization model were developed. The determination coefficient and the average absolute relative error of the developed constitutive model are 0.9955 and 2.95%. And the mean absolute error and root mean square error are also calculated and they are 1.8 MPa and 2.7 MPa. The comparison between measured and predicted flow stresses shows that the established constitutive model has the better accuracy than the constitutive models reported in literatures. In consequence of all, it was come to the conclusion that the developed microstructure-based constitutive model is wonderfully suitable to the numerical simulation of a Ti-6Al-2Zr-2Sn-3Mo-1.5Cr-2Nb alloy. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Physics A: Materials Science & Processing is the property of Springer Nature 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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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00339-025-08625-5 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1 Subjects: – SubjectFull: Standard deviations Type: general – SubjectFull: Isothermal compression Type: general – SubjectFull: Dislocations in crystals Type: general – SubjectFull: Strain hardening Type: general – SubjectFull: Dislocation density Type: general Titles: – TitleFull: Microstructure-based constitutive modeling of flow stress behavior of Ti-6Al-2Zr-2Sn-3Mo-1.5Cr-2Nb alloy at thermo-mechanical processing conditions. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Pak, Hyon Song – PersonEntity: Name: NameFull: Sim, Kyong Ho – PersonEntity: Name: NameFull: Ri, Bom Hae – PersonEntity: Name: NameFull: Jang, Gun Song IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 09478396 Numbering: – Type: volume Value: 131 – Type: issue Value: 6 Titles: – TitleFull: Applied Physics A: Materials Science & Processing Type: main |
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