Enhanced intragranular dislocation capture ability in nano/ultrafine Al-Zn-Mg-Cu alloy by burnishing-assisted two-stage aging treatment-induced dynamic nucleation.
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| Title: | Enhanced intragranular dislocation capture ability in nano/ultrafine Al-Zn-Mg-Cu alloy by burnishing-assisted two-stage aging treatment-induced dynamic nucleation. |
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| Authors: | Zhao, Tianshu1,2 (AUTHOR), Luo, Hongyun1,2,3 (AUTHOR) Luo7128@163.com, Luo, Jun1,2 (AUTHOR), Wang, Runze1,2 (AUTHOR) |
| Source: | Journal of Alloys & Compounds. Oct2023, Vol. 960, pN.PAG-N.PAG. 1p. |
| Subjects: | Small-angle X-ray scattering, Nucleation, Microhardness testing, Transmission electron microscopy, Dislocation density |
| Abstract: | The effects of burnishing-assisted two-stage aging (BATSA), including pre-aging, burnishing, and subsequent aging (SA) on the microstructural evolution, precipitation, and hardening behavior of Al-Zn-Mg-Cu alloy were systematically investigated. Transmission electron microscopy, X-ray diffraction, small-angle X-ray scattering, and Vickers microhardness tests were used to analyze the above-mentioned characteristics of the burnished-layer alloys and the matrix-layer alloys, respectively. The BATSA treatment promotes a concentrated distribution of precipitate sizes, delaying phase coalescence and maintaining a relatively dispersed precipitate distribution. Moreover, the persistent nucleation of Guinier-Preston (GP) zones in burnished alloys was observed during SA. These results are conducive to the enhancement of the dislocation storage capacity of nano/ultra fine-grained alloys (the decrease in dislocation density of pre-aged burnished alloy was about 65% that of non-pre-aged burnished alloy). Based on this, dynamic nucleation induced by pre-aging and burnishing resulted in a better synergy of multiple strengthening mechanisms, significantly shortening the time to peak hardness in pre-aged burnished alloys to about 1/3 that in non-pre-aged matrix alloys, and maintaining hardness stability. Moreover, it was found that the critical width of the in situ phase transformation from GPII zone to η' precipitate can be as low as 3–4 at. planes. [Display omitted] • Burnishing-assisted two-stage aging accelerates hardening and stabilizes hardness. • Delayed intragranular phase coalescence enhances dislocation storage capacity. • Burnishing optimizes multiple hardening mechanisms through dynamic nucleation. • In-situ η' phase nucleation can occur in GPII zone with 3–4 at. layers. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. 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: 164857037 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Enhanced intragranular dislocation capture ability in nano/ultrafine Al-Zn-Mg-Cu alloy by burnishing-assisted two-stage aging treatment-induced dynamic nucleation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhao%2C+Tianshu%22">Zhao, Tianshu</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Luo%2C+Hongyun%22">Luo, Hongyun</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> Luo7128@163.com</i><br /><searchLink fieldCode="AR" term="%22Luo%2C+Jun%22">Luo, Jun</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Runze%22">Wang, Runze</searchLink><relatesTo>1,2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Oct2023, Vol. 960, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Small-angle+X-ray+scattering%22">Small-angle X-ray scattering</searchLink><br /><searchLink fieldCode="DE" term="%22Nucleation%22">Nucleation</searchLink><br /><searchLink fieldCode="DE" term="%22Microhardness+testing%22">Microhardness testing</searchLink><br /><searchLink fieldCode="DE" term="%22Transmission+electron+microscopy%22">Transmission electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Dislocation+density%22">Dislocation density</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The effects of burnishing-assisted two-stage aging (BATSA), including pre-aging, burnishing, and subsequent aging (SA) on the microstructural evolution, precipitation, and hardening behavior of Al-Zn-Mg-Cu alloy were systematically investigated. Transmission electron microscopy, X-ray diffraction, small-angle X-ray scattering, and Vickers microhardness tests were used to analyze the above-mentioned characteristics of the burnished-layer alloys and the matrix-layer alloys, respectively. The BATSA treatment promotes a concentrated distribution of precipitate sizes, delaying phase coalescence and maintaining a relatively dispersed precipitate distribution. Moreover, the persistent nucleation of Guinier-Preston (GP) zones in burnished alloys was observed during SA. These results are conducive to the enhancement of the dislocation storage capacity of nano/ultra fine-grained alloys (the decrease in dislocation density of pre-aged burnished alloy was about 65% that of non-pre-aged burnished alloy). Based on this, dynamic nucleation induced by pre-aging and burnishing resulted in a better synergy of multiple strengthening mechanisms, significantly shortening the time to peak hardness in pre-aged burnished alloys to about 1/3 that in non-pre-aged matrix alloys, and maintaining hardness stability. Moreover, it was found that the critical width of the in situ phase transformation from GPII zone to η' precipitate can be as low as 3–4 at. planes. [Display omitted] • Burnishing-assisted two-stage aging accelerates hardening and stabilizes hardness. • Delayed intragranular phase coalescence enhances dislocation storage capacity. • Burnishing optimizes multiple hardening mechanisms through dynamic nucleation. • In-situ η' phase nucleation can occur in GPII zone with 3–4 at. layers. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. 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: 10.1016/j.jallcom.2023.170572 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Small-angle X-ray scattering Type: general – SubjectFull: Nucleation Type: general – SubjectFull: Microhardness testing Type: general – SubjectFull: Transmission electron microscopy Type: general – SubjectFull: Dislocation density Type: general Titles: – TitleFull: Enhanced intragranular dislocation capture ability in nano/ultrafine Al-Zn-Mg-Cu alloy by burnishing-assisted two-stage aging treatment-induced dynamic nucleation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhao, Tianshu – PersonEntity: Name: NameFull: Luo, Hongyun – PersonEntity: Name: NameFull: Luo, Jun – PersonEntity: Name: NameFull: Wang, Runze IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 10 Text: Oct2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 09258388 Numbering: – Type: volume Value: 960 Titles: – TitleFull: Journal of Alloys & Compounds Type: main |
| ResultId | 1 |
