Atomistic investigation on the correlation between shot peening impact energy and grain microstructure.
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| Title: | Atomistic investigation on the correlation between shot peening impact energy and grain microstructure. |
|---|---|
| Authors: | Dong, Hongtao1,2 (AUTHOR), Tang, Jinyuan1 (AUTHOR), Zhang, Jinghua1 (AUTHOR), Huang, Weiwei1 (AUTHOR) hvv0123456@126.com, Lv, Liangliang1 (AUTHOR) |
| Source: | Journal of Materials Science. Nov2025, Vol. 60 Issue 44, p21952-21983. 32p. |
| Subjects: | Shot peening, Dislocation nucleation, Crystal structure, Material plasticity, Residual stresses, Kinetic energy, Molecular dynamics |
| Abstract: | The paper uses molecular dynamics simulation to reveal the extreme plastic deformation behavior of polycrystalline iron under shot peening. We investigated the effects of three key factors, particle diameter, velocity, and incident angle, on stress state, dislocation distribution, and surface accumulation. The results are: (1) When the impact energy is the same, particle diameter has the best impact on dislocation nucleation, and velocity has the greatest impact on residual compressive stress. (2) An increase in impact energy is beneficial for dislocation proliferation and enhancing surface residual compressive stress. The residual compressive stress becomes difficult to accumulate due to the increase in contact area for particle diameter. (3) As the impact energy increases, the plastic deformation area around the indentation pit expands, the plastic accumulation increases, and the surface roughness deteriorates. (4) The mechanism of increased impact energy and grain refinement is: under extreme plastic deformation, the extrusion produces huge shear stresses to drive the atomic movement, and the obstruction of the surrounding grains forces the local lattice orientation to change to produce new small grains. This study contributes to a more profound understanding of the nanoscale deformation mechanisms associated with shot peening impact energy. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Materials Science 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.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 189135307 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Atomistic investigation on the correlation between shot peening impact energy and grain microstructure. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Dong%2C+Hongtao%22">Dong, Hongtao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tang%2C+Jinyuan%22">Tang, Jinyuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Jinghua%22">Zhang, Jinghua</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Weiwei%22">Huang, Weiwei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hvv0123456@126.com</i><br /><searchLink fieldCode="AR" term="%22Lv%2C+Liangliang%22">Lv, Liangliang</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%22">Journal of Materials Science</searchLink>. Nov2025, Vol. 60 Issue 44, p21952-21983. 32p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Shot+peening%22">Shot peening</searchLink><br /><searchLink fieldCode="DE" term="%22Dislocation+nucleation%22">Dislocation nucleation</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+structure%22">Crystal structure</searchLink><br /><searchLink fieldCode="DE" term="%22Material+plasticity%22">Material plasticity</searchLink><br /><searchLink fieldCode="DE" term="%22Residual+stresses%22">Residual stresses</searchLink><br /><searchLink fieldCode="DE" term="%22Kinetic+energy%22">Kinetic energy</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+dynamics%22">Molecular dynamics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The paper uses molecular dynamics simulation to reveal the extreme plastic deformation behavior of polycrystalline iron under shot peening. We investigated the effects of three key factors, particle diameter, velocity, and incident angle, on stress state, dislocation distribution, and surface accumulation. The results are: (1) When the impact energy is the same, particle diameter has the best impact on dislocation nucleation, and velocity has the greatest impact on residual compressive stress. (2) An increase in impact energy is beneficial for dislocation proliferation and enhancing surface residual compressive stress. The residual compressive stress becomes difficult to accumulate due to the increase in contact area for particle diameter. (3) As the impact energy increases, the plastic deformation area around the indentation pit expands, the plastic accumulation increases, and the surface roughness deteriorates. (4) The mechanism of increased impact energy and grain refinement is: under extreme plastic deformation, the extrusion produces huge shear stresses to drive the atomic movement, and the obstruction of the surrounding grains forces the local lattice orientation to change to produce new small grains. This study contributes to a more profound understanding of the nanoscale deformation mechanisms associated with shot peening impact energy. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Materials Science 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/s10853-025-11659-y Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 32 StartPage: 21952 Subjects: – SubjectFull: Shot peening Type: general – SubjectFull: Dislocation nucleation Type: general – SubjectFull: Crystal structure Type: general – SubjectFull: Material plasticity Type: general – SubjectFull: Residual stresses Type: general – SubjectFull: Kinetic energy Type: general – SubjectFull: Molecular dynamics Type: general Titles: – TitleFull: Atomistic investigation on the correlation between shot peening impact energy and grain microstructure. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Dong, Hongtao – PersonEntity: Name: NameFull: Tang, Jinyuan – PersonEntity: Name: NameFull: Zhang, Jinghua – PersonEntity: Name: NameFull: Huang, Weiwei – PersonEntity: Name: NameFull: Lv, Liangliang IsPartOfRelationships: – BibEntity: Dates: – D: 22 M: 11 Text: Nov2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 00222461 Numbering: – Type: volume Value: 60 – Type: issue Value: 44 Titles: – TitleFull: Journal of Materials Science Type: main |
| ResultId | 1 |
